[meteorite-list] Rock-forming minerals, redux

From: David R. Vann <drvann_at_meteoritecentral.com>
Date: Fri, 11 Jun 2010 12:57:07 -0400
Message-ID: <43813318049043978BD848C33414297D_at_sas.upenn.edu>

A small amendment to the question about the most common mineral on Earth:
While quartz or Feldspar-group minerals do represent the most common minerals ON
Earth (as Ryan noted, within the crust), the most common mineral IN the Earth is
MgSiO3 (normally thought of as Enstatite) in the perovskite structure. Due to
the high temperature and pressure in the mantle, this is the stable form until
near the core, when the structure shifts to post-perovskite, but still
chemically MgSiO3. Lower pressures near the upper mantle (Athenosphere) result
in the re-arrangement of the crystal to form Olivine (Mg,Fe)2SiO4 and other
pyroxene-group minerals (note that Enstatite is the fundamental magnesium
pyroxene). So, most of the mantle is chemically enstatite, a pyroxene, but
structurally, a perovskite...(does that help?...no...)

As to the solar system as a whole, that is more difficult. Jupoter likely has a
solid, 'rocky' core; its mass is on the order of a couple of dozen times the
mass of the entire Earth, but its composition is only surmise.


David R. Vann, Ph.D.
Department of Earth and Environmental Science
THE UNIVERSITY of PENNSYLVANIA
240 S. 33rd St.
Philadelphia, PA 19104-6316
drvann at sas.upenn.edu
office: 215-898-4906
FAX: 215-898-0964


| -----Original Message-----
| From: meteorite-list-bounces at meteoritecentral.com
| [mailto:meteorite-list-bounces at meteoritecentral.com] On
| Behalf Of meteorite-list-request at meteoritecentral.com
| Sent: Thursday, June 10, 2010 8:13 PM
| To: meteorite-list at meteoritecentral.com
| Subject: Meteorite-list Digest, Vol 82, Issue 24
|
|
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|
| Today's Topics:
|
| 1. Wanted: Four Corners (Dennis Miller)
| 2. Re: NWA 5400: Earth-Related Meteorite (cdtucson at cox.net)
| 3. Re: The Top Five collectible space meteorites
| (lebofsky at lpl.arizona.edu)
| 4. Re: The Top Five collectible space meteorites (GeoZay at aol.com)
| 5. Who is Omarty Al Shareef? (Galactic Stone & Ironworks)
| 6. Meteorite Folklore and Legend, 3 (Galactic Stone & Ironworks)
| 7. Re: NWA 5400: Earth-Related Meteorite (Alan Rubin)
| 8. June Meteorite-Times Now Up (Paul Harris)
| 9. Rock Forming Minerals (Greg Stanley)
| 10. Pop Culture Related To Meteorites (Greg Stanley)
| 11. Re: Pop Culture Related To Meteorites (Andreas Gren)
| 12. 25600 gr orionted thumberprinted too (habibi abdelaziz)
| 13. Re: $ gold / Oz (Michael Blood)
| 14. Re: $ gold / Oz (Mark Bowling)
| 15. Re: Rock Forming Minerals (Ryan Weidert)
| 16. Re: $ gold / Oz (dean bessey)
| 17. Re: Rock Forming Minerals (Greg Stanley)
| 18. Trade/AD - Turn You Iron into GOLD - No Alchemy Needed!
| (Ryan Weidert)
| 19. Extreme Life on Earth Could Survive on Mars, Too (Ron Baalke)
| 20. New Model Is Proposed to Explain Absence of Organic
| Compounds
| on Surface of Mars (Ron Baalke)
| 21. can a listoid translate this prev unseen meteorite medallion
| insert for me ? (Bob WALKER)
|
|
| ----------------------------------------------------------------------
|
| Message: 1
| Date: Thu, 10 Jun 2010 11:10:45 -0500
| From: Dennis Miller <astroroks at hotmail.com>
| Subject: [meteorite-list] Wanted: Four Corners
| To: <meteorite-list at meteoritecentral.com>
| Message-ID: <BAY150-w13EA2F1EBF343FB896B1C5B1D80 at phx.gbl>
| Content-Type: text/plain; charset="iso-8859-1"
|
|
| Hi, All.... Just wondering if there is anyone that might have
| a small slice of "Four Corners" meteorite that they would be
| willing to sell? I have finally given up running that portion
| of NW New Mexico, in
| hopes of locating more of that find. Very large area, no
| shade trees and no place to hide from the Rez patrol. :-)
| Shot me note.... Still in NW New Mexico
| Dennis Miller
| _________________________________________________________________
| Hotmail is redefining busy with tools for the New Busy. Get
| more from your inbox.
| http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::
| T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_2
|
| ------------------------------
|
| Message: 2
| Date: Thu, 10 Jun 2010 12:54:24 -0400
| From: <cdtucson at cox.net>
| Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
| To: meteorite-list at meteoritecentral.com, Greg Hupe <gmhupe at htn.net>,
| Richard Kowalski <damoclid at yahoo.com>, Alan Rubin
| <aerubin at ucla.edu>,
| Stuart McDaniel - Action Shooting Supply
| <actionshooting at carolina.rr.com>
| Message-ID: <20100610125424.4KI5P.704083.imail at fed1rmwml4101>
| Content-Type: text/plain; charset=utf-8
|
| Alan, Sterling, list,
| Thank you for these very informative reviews.
| There are three things that still puzzle me. One is the
| lack of Plagioclase. Neither you or Sterling mentioned it. It
| seems to me anything even remotely related to the Earth-Moon
| should have plagioclase.
| The second question I have is: wouldn't this meteorite have a
| combination of O-isotopes between the impactor and the
| impactee? and not match Earth? This seems to be the same
| problem I have believing the Moon was caused by a collision
| with Theia.
| What are the odds of Theia having the same O-isotopes as
| Earth? Which would have to be the case in order for the
| Earth-Moon O-isotopes to match each other. Wouldn't it?
| And the third question is;
| Knowing what we know about O-isotopes and how even enstatite
| chondrites and a few other types including at least one iron
| match that of Earth. Why do we place so much importance on
| O-isotopes. I mean surely we know chondrites and Earth are
| not related and yet they sometimes have the same O-isotopes.
| Doesn't that tell us that O-isotopes are not definitive of
| anything? And therefore useless in determining origin? Or at
| least semi-useless. Seriously. How is it that we ignore this fact?
| Seems to me if we know for a fact that these things are not
| related because of lithology differences. What makes us think
| O-isotopes amount to anything more than a simple observation?
| Carl
| --
| Carl or Debbie Esparza
| Meteoritemax
|
|
| ---- Alan Rubin <aerubin at ucla.edu> wrote:
| > I think that the speculation is getting way out of hand. It seems
| > very
| > unlikely to me that the meteorite is a piece of Earth,
| proto-Earth or of the
| > Mars-size planet that is inferred to have smacked the Earth
| 4.5 billion
| > years ago to form the Moon. The meteorite has a basically
| chondritic bulk
| > composition and, prior to terrestrial weathering, had fresh
| metal. It is
| > therefore probably not from a differentiated body. The
| only chondrites we
| > know that have terrestrial-like O-isotope compositions are
| enstatite
| > chondrites and CI chondrites. CI chondrites are
| essentially all matrix and
| > are probably unrelated to NWA 5400. And, of course,
| enstatite chondrites
| > are far more reduced than NWA 5400. Nevertheless, at least
| one enstatite
| > chondrite has been oxidized after having been impact-heated
| and partly
| > melted in proximity to oxidized material. That would be
| Galim. I haven't
| > studied NWA 5400 (although I would like to), but I'm
| guessing that its
| > origin is more likely to be that of an enstatite chondrite
| that was altered
| > by aqueous fluids and impacts than as some early progenitor
| of Earth.
| >
| >
| > Alan Rubin
| > Institute of Geophysics and Planetary Physics
| > University of California
| > Los Angeles, CA 90095-1567
| > phone: 310-825-3202
| > e-mail: aerubin at ucla.edu
| > website: http://cosmochemists.igpp.ucla.edu/Rubin.html
| >
| >
| > ----- Original Message -----
| > From: "Richard Kowalski" <damoclid at yahoo.com>
| > To: "Greg Hupe" <gmhupe at htn.net>;
| <meteorite-list at meteoritecentral.com>;
| > "Stuart McDaniel - Action Shooting Supply"
| <actionshooting at carolina.rr.com>
| > Sent: Wednesday, June 09, 2010 8:34 PM
| > Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
| >
| >
| > >I don't want to speak for Greg, but yes, that is one
| possible origin.
| > >It could be from the proto-Earth, the Mars sized impactor
| that stuck
| > >the proto-Earth, (this is the impact that formed the moon) or the
| > >remnants of that event.
| > >
| > > No matter which, it is an awesomely exciting meteorite!
| > >
| > > --
| > > Richard Kowalski
| > > Full Moon Photography
| > > IMCA #1081
| > >
| > >
| > > --- On Wed, 6/9/10, Stuart McDaniel - Action Shooting Supply
| > > <actionshooting at carolina.rr.com> wrote:
| > >
| > >> From: Stuart McDaniel - Action Shooting Supply
| > >> <actionshooting at carolina.rr.com>
| > >> Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
| > >> To: "Greg Hupe" <gmhupe at htn.net>,
| meteorite-list at meteoritecentral.com
| > >> Date: Wednesday, June 9, 2010, 5:30 PM
| > >> So this could be a piece of Earth
| > >> before Earth was Earth??
| > >>
| > >>
| > >> Stuart McDaniel
| > >> Lawndale, NC
| > >> Secr., CCAS
| > >> ----- Original Message ----- From: "Greg Hupe" <gmhupe at htn.net>
| > >> To: <meteorite-list at meteoritecentral.com>
| > >> Sent: Tuesday, June 08, 2010 7:31 PM
| > >> Subject: [meteorite-list] NWA 5400: Earth-Related Meteorite
| > >>
| > >>
| > >> > Dear List Members,
| > >> >
| > >> > I would like to announce an important new meteorite
| > >> that has been under intense analysis over the last two years
| > >> by a select group of scientists from around the world...
| > >> >
| > >> > NWA 5400: Earth-Related Ungrouped Meteorite
| > >> >
| > >> >
| > >> > Northwest Africa 5400 may be a sample from a large
| > >> asteroid or dwarf planet, which accreted in the early solar
| > >> nebula in the vicinity of proto-Earth or Theia. NWA 5400 has
| > >> oxygen isotope ratios indistinguishable from those of rocks
| > >> from the Earth and the Moon, which plot on the TFL
| > >> (Terrestrial Fractionation Line). A precise formation age
| > >> has not yet been measured, but it cannot be older than 4.54
| > >> billion years, which likely makes NWA 5400 anomalously young
| > >> among primitive achondritic objects from the early Solar
| > >> System. It is generally accepted that the Earth-Moon system
| > >> was created when Theia collided with proto-Earth about 4.3
| > >> billion years ago. Is it possible that NWA 5400 is somehow
| > >> related to this phenomenal event?
| > >> >
| > >> >
| > >> >
| > >> > NWA 5400 adds valuable understanding of events that
| > >> took place in the early evolution period of the Solar
| > >> System. After two years of intense analysis, scientists at
| > >> prominent institutions from around the world continue to
| > >> diligently study this 'stand-alone' meteorite, which will
| > >> add to the already incredible information NWA 5400 has to
| > >> offer.
| > >> >
| > >> >
| > >> >
| > >> > Link to 2009 LPSC abstract on NWA 5400:
| > >> >
| > >> > http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2332.pdf
| > >> >
| > >> >
| > >> >
| > >> > Link to 2010 LPSC abstract on NWA 5400:
| > >> >
| > >> > http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1492.pdf
| > >> >
| > >> >
| > >> >
| > >> > NWA 5400 has a Total Known Weight of 4.818 kg in a
| > >> single stone that was discovered in Northwest Africa in
| > >> 2008. The chocolate-brown mottled matrix takes an extremely
| > >> nice polish, which reveals the dazzling olivine crystals
| > >> exhibited in this scientifically important new meteorite!
| > >> >
| > >> >
| > >> >
| > >> > Cross-polarized light optical thin section image of
| > >> NWA 5400 (width of field = 1.2mm):
| > >> >
| > >> > http://www.lunarrock.com/NWA5400/nwa5400xpl.jpg
| > >> >
| > >> >
| > >> >
| > >> > Image of 58.9-gram complete slice with hologram-like
| > >> olivine crystals that dance across the polished surface when
| > >> tilted from side to side:
| > >> >
| > >> > http://www.lunarrock.com/NWA5400/nwa5400slice.jpg
| > >> >
| > >> >
| > >> > Best regards,
| > >> > Greg
| > >> >
| > >> > ====================
| > >> > Greg Hupe
| > >> > The Hupe Collection
| > >> > NaturesVault (eBay)
| > >> > gmhupe at htn.net
| > >> > www.LunarRock.com
| > >> > IMCA 3163
| > >> > ====================
| > >> > Click here for my current eBay auctions:
| > >> > http://search.ebay.com/_W0QQsassZnaturesvault
| > >> >
| > >> > ______________________________________________
| > >> > Visit the Archives at
| > >> > http://www.meteoritecentral.com/mailing-list-archives.html
| > >> > Meteorite-list mailing list
| > >> > Meteorite-list at meteoritecentral.com
| > >> > http://six.pairlist.net/mailman/listinfo/meteorite-list
| > >> >
| > >>
| > >>
| > >> ______________________________________________
| > >> Visit the Archives at
| > >> http://www.meteoritecentral.com/mailing-list-archives.html
| > >> Meteorite-list mailing list
| > >> Meteorite-list at meteoritecentral.com
| > >> http://six.pairlist.net/mailman/listinfo/meteorite-list
| > >>
| > >
| > >
| > >
| > > ______________________________________________
| > > Visit the Archives at
| > > http://www.meteoritecentral.com/mailing-list-archives.html
| > > Meteorite-list mailing list
| > > Meteorite-list at meteoritecentral.com
| > > http://six.pairlist.net/mailman/listinfo/meteorite-list
| >
| > ______________________________________________
| > Visit the Archives at
| http://www.meteoritecentral.com/mailing-list-archives.html
| > Meteorite-list mailing list
| > Meteorite-list at meteoritecentral.com
| > http://six.pairlist.net/mailman/listinfo/meteorite-list
|
|
| ------------------------------
|
| Message: 3
| Date: Thu, 10 Jun 2010 09:43:24 -0700 (MST)
| From: lebofsky at lpl.arizona.edu
| Subject: Re: [meteorite-list] The Top Five collectible space
| meteorites
| To: "Richard Kowalski" <damoclid at yahoo.com>
| Cc: meteorite-list at meteoritecentral.com
| Message-ID:
|
| <83b3fa473e2f0d6924d8bd34fb8115c3.squirrel at webmail.lpl.arizona.edu>
| Content-Type: text/plain;charset=iso-8859-1
|
|
| Richard:
|
| Which leads to the old joke:
|
| Which weighs more, a pound of gold or a pound of feathers.
|
| Given that a troy ounce is 31.1 grams and an avoirdupois ounce is 28.3
| grams, the answer is obvious, a pound of feathers!
|
| There are only 12 troy ounces in a troy pound, so a troy pound is only
| 373.24 grams and an avoirdupois pound (16 ounces) is 453.59 grams.
|
| Isn't metric wonderful?
|
| At least we do not use stone!
|
| Larry
|
| > Yes, you're right
| >
| > 31.1034768 grams to be exact, so $39.59 per gram
| >
| >
| >
| > --
| > Richard Kowalski
| > Full Moon Photography
| > IMCA #1081
| >
| >
| > --- On Wed, 6/9/10, GeoZay at aol.com <GeoZay at aol.com> wrote:
| >
| >> From: GeoZay at aol.com <GeoZay at aol.com>
| >> Subject: Re: [meteorite-list] The Top Five collectible
| space meteorites
| >> To: meteorite-list at meteoritecentral.com
| >> Date: Wednesday, June 9, 2010, 5:15 PM
| >> >>One ounce equals
| >> 28.3495231? grams<<
| >>
| >> I believe one troy ounce equals 31.1 grams. :O)
| >> geozay?
| >>
| >> ______________________________________________
| >> Visit the Archives at
| >> http://www.meteoritecentral.com/mailing-list-archives.html
| >> Meteorite-list mailing list
| >> Meteorite-list at meteoritecentral.com
| >> http://six.pairlist.net/mailman/listinfo/meteorite-list
| >>
| >
| >
| >
| > ______________________________________________
| > Visit the Archives at
| > http://www.meteoritecentral.com/mailing-list-archives.html
| > Meteorite-list mailing list
| > Meteorite-list at meteoritecentral.com
| > http://six.pairlist.net/mailman/listinfo/meteorite-list
| >
|
|
|
|
| ------------------------------
|
| Message: 4
| Date: Thu, 10 Jun 2010 13:03:51 EDT
| From: GeoZay at aol.com
| Subject: Re: [meteorite-list] The Top Five collectible space
| meteorites
| To: meteorite-list at meteoritecentral.com
| Message-ID: <1c0ed.79696852.394274f7 at aol.com>
| Content-Type: text/plain; charset="US-ASCII"
|
| >>Which weighs more, a pound of gold or a pound of feathers.
|
| Given that a troy ounce is 31.1 grams and an avoirdupois
| ounce is 28.3
| grams, the answer is obvious, a pound of feathers!<<
|
| And which would you rather have...a pound of feathers or a
| pound of gold,
| whether it be troy, avoirdupois or mixed? :O)
| GeoZay
|
|
|
| ------------------------------
|
| Message: 5
| Date: Thu, 10 Jun 2010 13:12:34 -0400
| From: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
| Subject: [meteorite-list] Who is Omarty Al Shareef?
| To: Meteorite List <meteorite-list at meteoritecentral.com>
| Message-ID:
| <AANLkTikNISdQhubrffg_1YCK-PXHMQb15I-3oP27JVMY at mail.gmail.com>
| Content-Type: text/plain; charset=ISO-8859-1
|
| Hi List,
|
| Is anyone else getting reams of junkmail and invites from someone
| named "Omarty Al Shareef" ?
|
| Most of the emails are in arabic and the ones I can read appear to be
| spam of some sort.
|
| I am asking the List, because he has occasionally CC'ed his emails to
| several other meteorite dealers from this List, and I am wondering if
| someone knows something about this character. I tried politely
| responding to him at first and asking him to remove me from his
| mailings, and when that didn't work, I blocked his email address. But
| now I am getting all kinds of invites from third-party services that
| are originating from him. What is this person's deal?
|
| Best regards,
|
| MikeG
|
| --
| ------------------------------------------------------------
| Mike Gilmer - Galactic Stone & Ironworks Meteorites
| http://www.galactic-stone.com
| http://www.facebook.com/galacticstone
| ------------------------------------------------------------
|
|
| ------------------------------
|
| Message: 6
| Date: Thu, 10 Jun 2010 13:16:42 -0400
| From: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
| Subject: [meteorite-list] Meteorite Folklore and Legend, 3
| To: Meteorite List <meteorite-list at meteoritecentral.com>
| Message-ID:
| <AANLkTinABr9SmL8zyaGWJKG2bCvAGrNhPgqdWe0TVxv4 at mail.gmail.com>
| Content-Type: text/plain; charset=ISO-8859-1
|
| In 1925, an H6 chondrite called Queens Mercy fell near Matatiele in
| Cape Province South Africa. The fall occurred at night and was
| heralded by a series of bright lights and thundering detonations. The
| local natives were greatly frightened and ran away into the bush. In
| the morning, they returned to find the largest stone "smoking hot"
| laying on the ground. The tribe medicine man declared that unless
| someone bravely touched the stone, a cattle plague would ensue. He
| also declared that whoever touched the stone would die. The only
| volunteer was an old woman who said she did not have long left to live
| anyway, and when she touched it, her hand was burned. (she did not
| die)
|
| The medicine man then said that whoever wore the stone as a talisman
| would enjoy good luck. Upon hearing this, the tribe broke up the stone
| on the spot and distributed the pieces amongst themselves.
|
| (luckily, two other stones were also recovered from this fall and did
| not suffer the same fate)
|
|
| ------------------------------------------------------------
| Mike Gilmer - Galactic Stone & Ironworks Meteorites
| http://www.galactic-stone.com
| http://www.facebook.com/galacticstone
| ------------------------------------------------------------
|
|
| ------------------------------
|
| Message: 7
| Date: Thu, 10 Jun 2010 10:15:33 -0700
| From: "Alan Rubin" <aerubin at ucla.edu>
| Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
| To: <cdtucson at cox.net>,
| <meteorite-list at meteoritecentral.com>, "Greg
| Hupe" <gmhupe at htn.net>, "Richard Kowalski" <damoclid at yahoo.com>,
| "Stuart McDaniel - Action Shooting Supply"
| <actionshooting at carolina.rr.com>
| Message-ID: <EDF9DB83C644455FA266094E77EBBC25 at igpp.ucla.edu>
| Content-Type: text/plain; format=flowed; charset="utf-8";
| reply-type=original
|
| Oxygen isotopes are a good classificatory parameter.
| Silicate
| inclusions within irons have been analyzed for O isotopes and
| in some cases,
| seem to point to particular chondrite groups as possible
| progenitors of the
| irons (e.g., IIE irons and H chondrites; the Guin iron and L or LL
| chondrites; IAB irons and winonaites). [I know winonaites are not
| chondrites, but they are chondritic in bulk composition.] Enstatite
| chondrites and aubrites are not alike texturally, but they
| are similar in
| mineralogy and both have the same O-isotopic compositions.
| We don't know
| that Earth and chondrites are unrelated. The Earth accreted
| from chondritic
| planetesimals and/or from differentiated planetesimals that
| were themselves
| initially chondritic. It derived its original O-isotopic
| composition from
| the average of these accreting bodies (which melted and homogenized).
|
| Because meteorites have a large range in O-isotopic
| compositions and
| presumably were derived from different regions of the solar
| system, many
| researchers believe that there were "reservoirs" in the solar
| system that
| had distinct O-isotopic compositions. Materials derived from
| a particular
| reservoir are assumed to have formed in relatively close
| proximity. Of
| course, we don't know how big these reservoirs were, or even
| if they really
| existed. As far as the Moon is concerned, there are several
| possibilities
| allowed even if we accept the impact-derivation hypothesis.
| The Mars-size
| impactor could have formed near the Earth and thus had the
| same O-isotopic
| composition to begin with. Thus, the Moon would end up with the same
| O-isotopic composition as Earth and the impactor regardless
| of how much
| material was derived from each body. Alternatively, the
| impactor had a
| different O-isotopic composition than the Earth and that this
| enormous
| impact caused mixing of the materials; in that event, the
| Earth and Moon may
| be homogenized mixtures of two initially distinct O-isotopic
| compositions.
|
| Alan Rubin
| Institute of Geophysics and Planetary Physics
| University of California
| Los Angeles, CA 90095-1567
| phone: 310-825-3202
| e-mail: aerubin at ucla.edu
| website: http://cosmochemists.igpp.ucla.edu/Rubin.html
|
|
| ----- Original Message -----
| From: <cdtucson at cox.net>
| To: <meteorite-list at meteoritecentral.com>; "Greg Hupe"
| <gmhupe at htn.net>;
| "Richard Kowalski" <damoclid at yahoo.com>; "Alan Rubin"
| <aerubin at ucla.edu>;
| "Stuart McDaniel - Action Shooting Supply"
| <actionshooting at carolina.rr.com>
| Sent: Thursday, June 10, 2010 9:54 AM
| Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
|
|
| > Alan, Sterling, list,
| > Thank you for these very informative reviews.
| > There are three things that still puzzle me. One is the lack of
| > Plagioclase. Neither you or Sterling mentioned it.
| > It seems to me anything even remotely related to the
| Earth-Moon should
| > have plagioclase.
| > The second question I have is: wouldn't this meteorite have
| a combination
| > of O-isotopes between the impactor and the impactee? and
| not match Earth?
| > This seems to be the same problem I have believing the Moon
| was caused by
| > a collision with Theia.
| > What are the odds of Theia having the same O-isotopes as
| Earth? Which
| > would have to be the case in order for the Earth-Moon
| O-isotopes to match
| > each other. Wouldn't it?
| > And the third question is;
| > Knowing what we know about O-isotopes and how even
| enstatite chondrites
| > and a few other types including at least one iron match
| that of Earth. Why
| > do we place so much importance on O-isotopes. I mean surely we know
| > chondrites and Earth are not related and yet they sometimes
| have the same
| > O-isotopes. Doesn't that tell us that O-isotopes are not
| definitive of
| > anything? And therefore useless in determining origin? Or at least
| > semi-useless.
| > Seriously. How is it that we ignore this fact?
| > Seems to me if we know for a fact that these things are not related
| > because of lithology differences. What makes us think
| O-isotopes amount to
| > anything more than a simple observation?
| > Carl
| > --
| > Carl or Debbie Esparza
| > Meteoritemax
| >
| >
| > ---- Alan Rubin <aerubin at ucla.edu> wrote:
| >> I think that the speculation is getting way out of hand.
| It seems very
| >> unlikely to me that the meteorite is a piece of Earth,
| proto-Earth or of
| >> the
| >> Mars-size planet that is inferred to have smacked the
| Earth 4.5 billion
| >> years ago to form the Moon. The meteorite has a basically
| chondritic
| >> bulk
| >> composition and, prior to terrestrial weathering, had
| fresh metal. It is
| >> therefore probably not from a differentiated body. The
| only chondrites
| >> we
| >> know that have terrestrial-like O-isotope compositions are
| enstatite
| >> chondrites and CI chondrites. CI chondrites are
| essentially all matrix
| >> and
| >> are probably unrelated to NWA 5400. And, of course,
| enstatite chondrites
| >> are far more reduced than NWA 5400. Nevertheless, at least
| one enstatite
| >> chondrite has been oxidized after having been
| impact-heated and partly
| >> melted in proximity to oxidized material. That would be Galim. I
| >> haven't
| >> studied NWA 5400 (although I would like to), but I'm
| guessing that its
| >> origin is more likely to be that of an enstatite chondrite
| that was
| >> altered
| >> by aqueous fluids and impacts than as some early
| progenitor of Earth.
| >>
| >>
| >> Alan Rubin
| >> Institute of Geophysics and Planetary Physics
| >> University of California
| >> Los Angeles, CA 90095-1567
| >> phone: 310-825-3202
| >> e-mail: aerubin at ucla.edu
| >> website: http://cosmochemists.igpp.ucla.edu/Rubin.html
| >>
| >>
| >> ----- Original Message -----
| >> From: "Richard Kowalski" <damoclid at yahoo.com>
| >> To: "Greg Hupe" <gmhupe at htn.net>;
| <meteorite-list at meteoritecentral.com>;
| >> "Stuart McDaniel - Action Shooting Supply"
| >> <actionshooting at carolina.rr.com>
| >> Sent: Wednesday, June 09, 2010 8:34 PM
| >> Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
| >>
| >>
| >> >I don't want to speak for Greg, but yes, that is one
| possible origin.
| >> > It could be from the proto-Earth, the Mars sized
| impactor that stuck
| >> > the
| >> > proto-Earth, (this is the impact that formed the moon)
| or the remnants
| >> > of
| >> > that event.
| >> >
| >> > No matter which, it is an awesomely exciting meteorite!
| >> >
| >> > --
| >> > Richard Kowalski
| >> > Full Moon Photography
| >> > IMCA #1081
| >> >
| >> >
| >> > --- On Wed, 6/9/10, Stuart McDaniel - Action Shooting Supply
| >> > <actionshooting at carolina.rr.com> wrote:
| >> >
| >> >> From: Stuart McDaniel - Action Shooting Supply
| >> >> <actionshooting at carolina.rr.com>
| >> >> Subject: Re: [meteorite-list] NWA 5400: Earth-Related Meteorite
| >> >> To: "Greg Hupe" <gmhupe at htn.net>,
| meteorite-list at meteoritecentral.com
| >> >> Date: Wednesday, June 9, 2010, 5:30 PM
| >> >> So this could be a piece of Earth
| >> >> before Earth was Earth??
| >> >>
| >> >>
| >> >> Stuart McDaniel
| >> >> Lawndale, NC
| >> >> Secr., CCAS
| >> >> ----- Original Message ----- From: "Greg Hupe" <gmhupe at htn.net>
| >> >> To: <meteorite-list at meteoritecentral.com>
| >> >> Sent: Tuesday, June 08, 2010 7:31 PM
| >> >> Subject: [meteorite-list] NWA 5400: Earth-Related
| >> >> Meteorite
| >> >>
| >> >>
| >> >> > Dear List Members,
| >> >> >
| >> >> > I would like to announce an important new meteorite
| >> >> that has been under intense analysis over the last two years
| >> >> by a select group of scientists from around the world...
| >> >> >
| >> >> > NWA 5400: Earth-Related Ungrouped Meteorite
| >> >> >
| >> >> >
| >> >> > Northwest Africa 5400 may be a sample from a large
| >> >> asteroid or dwarf planet, which accreted in the early solar
| >> >> nebula in the vicinity of proto-Earth or Theia. NWA 5400 has
| >> >> oxygen isotope ratios indistinguishable from those of rocks
| >> >> from the Earth and the Moon, which plot on the TFL
| >> >> (Terrestrial Fractionation Line). A precise formation age
| >> >> has not yet been measured, but it cannot be older than 4.54
| >> >> billion years, which likely makes NWA 5400 anomalously young
| >> >> among primitive achondritic objects from the early Solar
| >> >> System. It is generally accepted that the Earth-Moon system
| >> >> was created when Theia collided with proto-Earth about 4.3
| >> >> billion years ago. Is it possible that NWA 5400 is somehow
| >> >> related to this phenomenal event?
| >> >> >
| >> >> >
| >> >> >
| >> >> > NWA 5400 adds valuable understanding of events that
| >> >> took place in the early evolution period of the Solar
| >> >> System. After two years of intense analysis, scientists at
| >> >> prominent institutions from around the world continue to
| >> >> diligently study this 'stand-alone' meteorite, which will
| >> >> add to the already incredible information NWA 5400 has to
| >> >> offer.
| >> >> >
| >> >> >
| >> >> >
| >> >> > Link to 2009 LPSC abstract on NWA 5400:
| >> >> >
| >> >> > http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2332.pdf
| >> >> >
| >> >> >
| >> >> >
| >> >> > Link to 2010 LPSC abstract on NWA 5400:
| >> >> >
| >> >> > http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1492.pdf
| >> >> >
| >> >> >
| >> >> >
| >> >> > NWA 5400 has a Total Known Weight of 4.818 kg in a
| >> >> single stone that was discovered in Northwest Africa in
| >> >> 2008. The chocolate-brown mottled matrix takes an extremely
| >> >> nice polish, which reveals the dazzling olivine crystals
| >> >> exhibited in this scientifically important new meteorite!
| >> >> >
| >> >> >
| >> >> >
| >> >> > Cross-polarized light optical thin section image of
| >> >> NWA 5400 (width of field = 1.2mm):
| >> >> >
| >> >> > http://www.lunarrock.com/NWA5400/nwa5400xpl.jpg
| >> >> >
| >> >> >
| >> >> >
| >> >> > Image of 58.9-gram complete slice with hologram-like
| >> >> olivine crystals that dance across the polished surface when
| >> >> tilted from side to side:
| >> >> >
| >> >> > http://www.lunarrock.com/NWA5400/nwa5400slice.jpg
| >> >> >
| >> >> >
| >> >> > Best regards,
| >> >> > Greg
| >> >> >
| >> >> > ====================
| >> >> > Greg Hupe
| >> >> > The Hupe Collection
| >> >> > NaturesVault (eBay)
| >> >> > gmhupe at htn.net
| >> >> > www.LunarRock.com
| >> >> > IMCA 3163
| >> >> > ====================
| >> >> > Click here for my current eBay auctions:
| >> >> > http://search.ebay.com/_W0QQsassZnaturesvault
| >> >> >
| >> >> > ______________________________________________
| >> >> > Visit the Archives at
| >> >> > http://www.meteoritecentral.com/mailing-list-archives.html
| >> >> > Meteorite-list mailing list
| >> >> > Meteorite-list at meteoritecentral.com
| >> >> > http://six.pairlist.net/mailman/listinfo/meteorite-list
| >> >> >
| >> >>
| >> >>
| >> >> ______________________________________________
| >> >> Visit the Archives at
| >> >> http://www.meteoritecentral.com/mailing-list-archives.html
| >> >> Meteorite-list mailing list
| >> >> Meteorite-list at meteoritecentral.com
| >> >> http://six.pairlist.net/mailman/listinfo/meteorite-list
| >> >>
| >> >
| >> >
| >> >
| >> > ______________________________________________
| >> > Visit the Archives at
| >> > http://www.meteoritecentral.com/mailing-list-archives.html
| >> > Meteorite-list mailing list
| >> > Meteorite-list at meteoritecentral.com
| >> > http://six.pairlist.net/mailman/listinfo/meteorite-list
| >>
| >> ______________________________________________
| >> Visit the Archives at
| >> http://www.meteoritecentral.com/mailing-list-archives.html
| >> Meteorite-list mailing list
| >> Meteorite-list at meteoritecentral.com
| >> http://six.pairlist.net/mailman/listinfo/meteorite-list
|
|
|
| ------------------------------
|
| Message: 8
| Date: Thu, 10 Jun 2010 10:59:13 -0700
| From: Paul Harris <paul at meteorite.com>
| Subject: [meteorite-list] June Meteorite-Times Now Up
| To: Meteorite-list at meteoritecentral.com
| Message-ID: <4C1127F1.1080101 at meteorite.com>
| Content-Type: text/plain; charset=ISO-8859-1; format=flowed
|
| Dear List,
|
| The June issue of Meteorite-Times is now up.
|
| A huge thank you to all the writers for their contribution of
| talent and
| time each month.
|
| http://www.meteorite-times.com/meteorite_frame.htm
|
| Enjoy!
|
| Paul and Jim
|
|
| ------------------------------
|
| Message: 9
| Date: Thu, 10 Jun 2010 13:01:06 -0700
| From: Greg Stanley <stanleygregr at hotmail.com>
| Subject: [meteorite-list] Rock Forming Minerals
| To: <meteorite-list at meteoritecentral.com>
| Message-ID: <SNT117-W192012EA06A17635E3ECA5D2D80 at phx.gbl>
| Content-Type: text/plain; charset="iso-8859-1"
|
|
| List:
|
| I have a question:
|
| I was looking a the Bowen Series of rock forming minerals on
| earth and was wondering.? Is there a similar sequence (or
| order) of mineral formation for: a) minerals on asteroids, b)
| mineral on Mars, and c) minerals on the moon.? It would be
| interesting to compare and see the differences and similarities.
|
| Also would Olivine or pyroxene be the most common mineral in
| the solar system? Or perhaps something else?
|
| If I'm not mistaken, the feldspar group of minerals in the
| most common on earth.
|
| Much Thanks,
|
| Greg S.
|
| _________________________________________________________________
| The New Busy think 9 to 5 is a cute idea. Combine multiple
| calendars with Hotmail.
| http://www.windowslive.com/campaign/thenewbusy?tile=multicalen
| dar&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5
|
| ------------------------------
|
| Message: 10
| Date: Thu, 10 Jun 2010 14:25:26 -0700
| From: Greg Stanley <stanleygregr at hotmail.com>
| Subject: [meteorite-list] Pop Culture Related To Meteorites
| To: <meteorite-list at meteoritecentral.com>
| Message-ID: <SNT117-W51790B74C971442F865558D2D80 at phx.gbl>
| Content-Type: text/plain; charset="iso-8859-1"
|
|
|
| List:
|
| I came upon this by accident and remember someone inquiring
| about pop culture themes related to meteorites.? He may know
| about this, but I thought it was interesting.
|
| Years ago I enjoyed Punk music, so this caught my eye.
|
| Was Geoff Notkin in this band?
|
| http://thep5.blogspot.com/2009/03/meteors-meteor-madness.html
|
|
| Greg S.
|
| _________________________________________________________________
| The New Busy is not the too busy. Combine all your e-mail
| accounts with Hotmail.
| http://www.windowslive.com/campaign/thenewbusy?tile=multiaccou
| nt&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4
|
| ------------------------------
|
| Message: 11
| Date: Thu, 10 Jun 2010 23:50:26 +0200
| From: "Andreas Gren" <info at meteoritenhaus.de>
| Subject: Re: [meteorite-list] Pop Culture Related To Meteorites
| To: "'Greg Stanley'" <stanleygregr at hotmail.com>
| Cc: meteorite-list at meteoritecentral.com
| Message-ID: <q00687m5AJdpSl.RZmta at mo-p00-ob.rzone.de>
| Content-Type: text/plain; charset="iso-8859-2"
|
| Greg wrote
|
| > Was Geoff Notkin in this band? <
|
| I don't think so, can't find him on the LP covers. Three
| vinyl LPs in my
| collection and additional two CDs. By the way, The Meteors
| are a psychobilly
| band, not a punk band.
|
| Greetings
| Andi
|
|
|
|
|
| List:
|
| I came upon this by accident and remember someone inquiring about pop
| culture themes related to meteorites.? He may know about
| this, but I thought
| it was interesting.
|
| Years ago I enjoyed Punk music, so this caught my eye.
|
| Was Geoff Notkin in this band?
|
| http://thep5.blogspot.com/2009/03/meteors-meteor-madness.html
|
|
| Greg S.
|
| _________________________________________________________________
| The New Busy is not the too busy. Combine all your e-mail
| accounts with
| Hotmail.
| http://www.windowslive.com/campaign/thenewbusy?tile=multiaccou
| nt&ocid=PID283
| 26::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4
| ______________________________________________
| Visit the Archives at
| http://www.meteoritecentral.com/mailing-list-archives.html
| Meteorite-list mailing list
| Meteorite-list at meteoritecentral.com
| http://six.pairlist.net/mailman/listinfo/meteorite-list
|
|
|
| ------------------------------
|
| Message: 12
| Date: Thu, 10 Jun 2010 15:06:03 -0700 (PDT)
| From: habibi abdelaziz <azizhabibi at yahoo.com>
| Subject: [meteorite-list] 25600 gr orionted thumberprinted too
| To: meteorite list <meteorite-list at meteoritecentral.com>
| Message-ID: <997373.13497.qm at web62002.mail.re1.yahoo.com>
| Content-Type: text/plain; charset=iso-8859-1
|
| hi all
| some photo for miditation before sleeping.
|
| a litle baby of 25600 gr
|
| http://www.flickr.com/photos/azizhabibi/
|
| good night
| aziz
| ?habibi aziz
| box 70 erfoud 52200 morroco
| phone. 21235576145
| fax.21235576170</font>
|
|
|
|
|
| ------------------------------
|
| Message: 13
| Date: Thu, 10 Jun 2010 15:06:29 -0700
| From: Michael Blood <mlblood at cox.net>
| Subject: Re: [meteorite-list] $ gold / Oz
| To: <GeoZay at aol.com>, Meteorite List
| <meteorite-list at meteoritecentral.com>
| Message-ID: <C836AFF5.F2E7%mlblood at cox.net>
| Content-Type: text/plain; charset="US-ASCII"
|
| Hi GeoZay and all,
| Well, now that I know it is 20 penyweight, that
| Clears it up for me.
|
| GeoZay wrote:
| > I remember the attempt to go metric in this country and it
| was a big pain
| > in the butt for me to mentally convert. I'm glad it didn't
| catch on. I
| > basically know approximately what the various units are,
| but I just don't
| > think in daily life with metric units in mind.
|
|
|
|
| On 6/10/10 6:34 AM, "GeoZay at aol.com" <GeoZay at aol.com> wrote:
|
| > Michael...
| >
| >>> And most importantly, if an oz of gold is worth X
| dollars, is it a
| > Troy Oz or a US/"Imperial" Oz?<<
| > When dealing with gold or other precious metals, Troy oz is
| the weight
| > measurement you are using. It's been around a long, long
| time and it's not
| > metric. I couldn't tell you what it is.
| >
| >>> Even when the US FINALLY tried to convert to metric, they made
| > An incredibly feeble and futile attempt by allowing BOTH metric
| > And imperial weights on food and mi & Km on speedometers, etc. If
| > They had just forbidden any references to imperial measures on food
| > And speedometers and speed signs everyone would have adapted in
| > A matter of days - but with both, everyone IGNORED the metric
| > Measures (of course) and the US quickly gave up. Maddening!<<
| >
| > I remember the attempt to go metric in this country and it
| was a big pain
| > in the butt for me to mentally convert. I'm glad it didn't
| catch on. I
| > basically know approximately what the various units are,
| but I just don't
| > think
| > in daily life with metric units in mind.
| >
| >
| >>> So, are you saying a "Troy Oz" is THE oz they are speaking of
| > When they report gold is currently at X$ per oz? <<
| >
| >
| > When a price of gold is given per ounce, it is in Troy ounces.
| >
| >>> And if they are,
| > What the hell is a "Troy oz?"<<
| >
| > A Troy oz is 20 pennyweights. :O) Considering the moment, I
| just had to
| > throw that in. When measuring small amounts of gold,
| Pennyweight is often
| > used as well. Anyhow, there are 12 Troy oz's to a Troy
| pound. In the year
| > 2004
| > I dredged a little over 1 Troy pound out of the South Fork
| Yuba River. That
| > was a fun year...also removed a couple ounces of mercury
| in the process.
| > GeoZay
|
|
|
|
| ------------------------------
|
| Message: 14
| Date: Thu, 10 Jun 2010 15:49:56 -0700 (PDT)
| From: Mark Bowling <minador at yahoo.com>
| Subject: Re: [meteorite-list] $ gold / Oz
| To: Meteorite List <meteorite-list at meteoritecentral.com>
| Message-ID: <824748.91643.qm at web54503.mail.re2.yahoo.com>
| Content-Type: text/plain; charset=iso-8859-1
|
| > From: Michael Blood mlblood at cox.net
| > Hi GeoZay and all,
| > ? ? ? Well, now that I know it is 20 penyweight, that
| > Clears it up for me.
|
| Hey all,
| Just saw this email and thought I'd throw my 2 cents in
| (someone may have answered).? The price of gold is always
| measured in troy ounces (when ounces are referred to).?
| Usually abbreviated as ozt ( $1300/ozt. or 1 ozt/ton)? I
| worked in gold mines a short time, but I believe most
| companies use grams to do their engineering/geology, etc.?
| Metric is much easier to work with, though i admit I have a
| hard time converting some units in my head and/or visualizing them.
|
| And there is only one gram (no unique unit for gold in SI).?
| A troy ounce is 31.1 grams? (a great one to keep in mind).
|
| I never realized that a troy pound was different than a
| standard pound.? I thought they were the same, just that the
| pound was divided up differently (troy ounce vs. standard
| ounce)...? Thanks GeoZay for clearing that up for me!? :)?
| And congrats on dredging that much gold!!? I too panned the
| South Fork of the Yuba and recovered some mercury on some of
| the gold (but I forget, maybe it was Middle Fork...)!? Pretty
| cool!? Cleaning up the planet one pan at a time.? o(;?-D
|
| Michael, a pennyweight is just another old measuring unit for
| gold.? It's still used in some mining circles (mostly for
| gold).? Another unit you will come across when dealing with
| small amounts of gold is the "grain".? So be careful when
| buying gold - make sure you understand if they are selling
| grams and grains.? Some incorrectly abbreviate them and you
| could possible get scammed (ebay comes to mind - I have seen
| one or two deceptive auctions).
|
| Clear skies all (in other words, may all your pans be lined
| with gold...),
| Mark B.
| Vail, AZ
|
|
| ------------------------------
|
| Message: 15
| Date: Thu, 10 Jun 2010 16:07:43 -0700
| From: Ryan Weidert <ryan.weidert at gmail.com>
| Subject: Re: [meteorite-list] Rock Forming Minerals
| To: meteorite-list at meteoritecentral.com, Greg Stanley
| <stanleygregr at hotmail.com>
| Message-ID:
| <AANLkTikqTbkOvUJzqj3GisDsfakmzahXmB9jpRnDmXCt at mail.gmail.com>
| Content-Type: text/plain; charset=ISO-8859-1
|
| Hi Greg, List:
|
|
| >> I was looking a the Bowen Series of rock forming minerals
| on earth and was wondering.? Is there a similar sequence (or
| order) of mineral formation for: a) minerals on asteroids, b)
| mineral on Mars, and c) minerals on the moon.? It would be
| interesting to compare >> and see the differences and similarities.
|
| I've never heard of a reaction series for other solar bodies, but I
| would guess that the Bowen Reaction Series would be pretty similar of
| minerals formed in asteroids and other planets and moons. I think that
| because the series is based on the elements within the magma and the
| temperatures of formation and rates of cooling. The ten most abundant
| elements in the universe are Hydrogen, Helium, Oxygen, Neon, Nitrogen,
| Carbon, Silicon, Magnesium, Iron, and Sulfur. I can only assume that
| they are/were dispersed fairly uniformly across the universe and the
| Earth, being apart of the universe, is an amalgamation of those
| elements. Granted there are disparities between the Earths composition
| and meteorites, martian and lunar, however the earth is actively
| producing and altering, and segregating minerals, giving it a more
| 'unique' composition in regards to bodies that have had little active
| formation time.
|
| In the end, I think it really boils down to the elemental composition
| of the magma - only certain arrangements exist in which the available
| elements can form minerals, and seeing that there are 300 minerals
| common to both earth and meteorites and 40 exclusive to meteorites,
| I'd say the reaction series has a good chance at being quite similar.
|
|
| >> Also would Olivine or pyroxene be the most common mineral
| in the solar system? Or perhaps something else?
|
| I would guess Olivine is the most common (single) mineral in the solar
| system, with pyroxenes second. If you take pyroxenes as a group of
| minerals, its probably first.
|
| For meteorites, I read that "The most common minerals are pyroxenes
| followed by plagioclase feldspar, and olivine". From
| http://www4.nau.edu/meteorite/Meteorite/Book-Minerals.html
| The 'Field Guide to Meteors and Meteorites' states that "The most
| abundant minerals in meteorites are pyroxenes, olivine, plagioclase
| feldspar, kamacite and taenite." (Appendix 1)
| http://books.google.com/books?id=OMgDhc8d7v4C&lpg=PA238&ots=Ys
Nrqg6XuU&dq=most%20abundant%20mineral%20in%|
20meteorites&pg=PA238#v=onepage&q&f=false
|
|
| >> If I'm not mistaken, the feldspar group of minerals in the
| most common on earth.
|
| Depending where on/within earth one looks, the most common mineral
| changes. As a singular mineral, Quartz is the most abundant on the
| surface/crust. It is true that there feldspar group as a whole is more
| common, but that is because it is a group of seven different
| feldspars, albeit their boundaries are arbitrary. If we are talking
| about sheer percentage of the earth, the most common mineral is
| Olivine. That of course is a general term for a group as well,
| fayalite and forsterite, however still takes the cake. Pyroxenes take
| second within the earth.
|
| cheers y'all
|
| ryan weidert
|
|
| ------------------------------
|
| Message: 16
| Date: Thu, 10 Jun 2010 16:07:19 -0700 (PDT)
| From: dean bessey <deanbessey at yahoo.com>
| Subject: Re: [meteorite-list] $ gold / Oz
| To: meteorite-list at meteoritecentral.com
| Message-ID: <474842.34673.qm at web56107.mail.re3.yahoo.com>
| Content-Type: text/plain; charset=utf-8
|
| > When a price of gold is given per ounce, it is in
| > Troy ounces.
| >
| > >>And if they are,
| > What the hell is a "Troy oz?"<<
| >
| Gold DOES NOT trade in ounces. It trades in TROY OUNCES. A
| troy ounce is about 31 grams (As opposed to roughly 28 grams
| in a standard imperial ounce).
| In Ancient Rome a bronze bar weighing one pound and used as
| money before the invention of coins and was called an "Aes
| Grave". 1/12 aes grave was called a "Uncia" (Or in English
| unica translates to ounce).
| Precious metals in particular was trades in "Uncia's" (ounces).
| Later England standardized (Well, changed anyway) things and
| in the new measurement system the pound was changed to 16
| ounces and ounces were made slightly smaller creating the
| smaller imperial ounce.
| Gold, silver and gunpowder continued to be priced in old
| Roman (Troy) Ounces but everything else traded in the new
| British measurements.
| Not sure about gunpowder but gold and silver (And other
| precious metals) today still are priced in old Roman
| measurements in the futures markets.
| Sincerely
| DEAN
|
|
|
|
|
|
|
|
| ------------------------------
|
| Message: 17
| Date: Thu, 10 Jun 2010 16:17:18 -0700
| From: Greg Stanley <stanleygregr at hotmail.com>
| Subject: Re: [meteorite-list] Rock Forming Minerals
| To: <ryan.weidert at gmail.com>, <meteorite-list at meteoritecentral.com>
| Message-ID: <SNT117-W2B511037AA85D68C4940DD2D80 at phx.gbl>
| Content-Type: text/plain; charset="iso-8859-1"
|
|
| Thanks Ryan,
|
|
|
| Interesting that there is no (or very little) of the mica's
| and Quartz in meteorites, which are the last minerals to be
| created in the Bowen Series.
|
| Greg S.
|
| ----------------------------------------
| > Date: Thu, 10 Jun 2010 16:07:43 -0700
| > Subject: Re: [meteorite-list] Rock Forming Minerals
| > From: ryan.weidert at gmail.com
| > To: meteorite-list at meteoritecentral.com; stanleygregr at hotmail.com
| >
| > Hi Greg, List:
| >
| >
| >>> I was looking a the Bowen Series of rock forming minerals
| on earth and was wondering. Is there a similar sequence (or
| order) of mineral formation for: a) minerals on asteroids, b)
| mineral on Mars, and c) minerals on the moon. It would be
| interesting to compare>> and see the differences and similarities.
| >
| > I've never heard of a reaction series for other solar bodies, but I
| > would guess that the Bowen Reaction Series would be pretty
| similar of
| > minerals formed in asteroids and other planets and moons. I
| think that
| > because the series is based on the elements within the magma and the
| > temperatures of formation and rates of cooling. The ten
| most abundant
| > elements in the universe are Hydrogen, Helium, Oxygen,
| Neon, Nitrogen,
| > Carbon, Silicon, Magnesium, Iron, and Sulfur. I can only assume that
| > they are/were dispersed fairly uniformly across the universe and the
| > Earth, being apart of the universe, is an amalgamation of those
| > elements. Granted there are disparities between the Earths
| composition
| > and meteorites, martian and lunar, however the earth is actively
| > producing and altering, and segregating minerals, giving it a more
| > 'unique' composition in regards to bodies that have had
| little active
| > formation time.
| >
| > In the end, I think it really boils down to the elemental
| composition
| > of the magma - only certain arrangements exist in which the
| available
| > elements can form minerals, and seeing that there are 300 minerals
| > common to both earth and meteorites and 40 exclusive to meteorites,
| > I'd say the reaction series has a good chance at being
| quite similar.
| >
| >
| >>> Also would Olivine or pyroxene be the most common mineral
| in the solar system? Or perhaps something else?
| >
| > I would guess Olivine is the most common (single) mineral
| in the solar
| > system, with pyroxenes second. If you take pyroxenes as a group of
| > minerals, its probably first.
| >
| > For meteorites, I read that "The most common minerals are pyroxenes
| > followed by plagioclase feldspar, and olivine". From
| > http://www4.nau.edu/meteorite/Meteorite/Book-Minerals.html
| > The 'Field Guide to Meteors and Meteorites' states that "The most
| > abundant minerals in meteorites are pyroxenes, olivine, plagioclase
| > feldspar, kamacite and taenite." (Appendix 1)
| >
| http://books.google.com/books?id=OMgDhc8d7v4C&lpg=PA238&ots=Ys
Nrqg6XuU&dq=most%20abundant%20mineral%20in%|
20meteorites&pg=PA238#v=onepage&q&f=false
| >
| >
| >>> If I'm not mistaken, the feldspar group of minerals in
| the most common on earth.
| >
| > Depending where on/within earth one looks, the most common mineral
| > changes. As a singular mineral, Quartz is the most abundant on the
| > surface/crust. It is true that there feldspar group as a
| whole is more
| > common, but that is because it is a group of seven different
| > feldspars, albeit their boundaries are arbitrary. If we are talking
| > about sheer percentage of the earth, the most common mineral is
| > Olivine. That of course is a general term for a group as well,
| > fayalite and forsterite, however still takes the cake.
| Pyroxenes take
| > second within the earth.
| >
| > cheers y'all
| >
| > ryan weidert
|
| _________________________________________________________________
| The New Busy is not the old busy. Search, chat and e-mail
| from your inbox.
| http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::
| T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_3
|
| ------------------------------
|
| Message: 18
| Date: Thu, 10 Jun 2010 16:21:44 -0700
| From: Ryan Weidert <ryan.weidert at gmail.com>
| Subject: [meteorite-list] Trade/AD - Turn You Iron into GOLD - No
| Alchemy Needed!
| To: meteorite-list at meteoritecentral.com
| Message-ID:
| <AANLkTik_Gu6YXEIx45wQX2AnGbKUNFPJz9o0mAIbRMeG at mail.gmail.com>
| Content-Type: text/plain; charset=ISO-8859-1
|
| Hello All,
| With all the talk of troy ounces, grains, and penyweights of
| gold, I thought it the perfect time to offer 1 troy ounce of my
| dredged fine/flake gold for meteorite offers. Im looking to add a
| large iron or nice etched iron, or nice pallasite slice to my
| collection. I am open to other offers as well.
| A photo or two would be a plus. Contact me off list if you
| have an offer.
|
| Many Thanks!
|
| ryan weidert.
|
|
| ------------------------------
|
| Message: 19
| Date: Thu, 10 Jun 2010 16:31:27 -0700 (PDT)
| From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
| Subject: [meteorite-list] Extreme Life on Earth Could Survive on Mars,
| Too
| To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
| Message-ID: <201006102331.o5ANVRhD022187 at zagami.jpl.nasa.gov>
| Content-Type: text/plain; charset=iso-8859-1
|
|
| http://www.space.com/scienceastronomy/mars-hospitable-life-ear
| th-100608.html
|
| Extreme Life on Earth Could Survive on Mars, Too
| space.com
| 08 June 2010
|
| A new discovery of bacterial life in a Martian-like
| environment on Earth
| suggests our neighboring red planet could also be hospitable to some
| form of microbial life.
|
| Researchers found methane-eating bacteria that appear to be
| thriving in
| a unique spring called Lost Hammer on Axel Heiberg Island in
| the extreme
| north of Canada.
|
| This spring is similar to possible past or present springs on
| Mars, the
| scientists say, so it hints that microbial life could
| potentially exist
| there, too. There is no firm evidence that Mars does or ever
| did host life,
| however.
|
| The Lost Hammer spring is extremely salty - so much so that the water
| doesn't freeze, even though temperatures are below freezing. The water
| has no consumable oxygen in it, but there are big bubbles of methane
| that rise to the surface.
|
| And yet, the researchers found unique anaerobic organisms
| creatures that
| don't need oxygen to survive - thriving in the spring. The
| hardy organisms
| most likely breathe sulfate instead of oxygen, the researchers said.
|
| "The Lost Hammer spring is the most extreme subzero and salty
| environment we've found," said researcher Lyle Whyte, a microbiologist
| Canada's McGill University.
|
| In fact, the temperatures in this part of Canada are even harsher than
| those found in many places on Mars.
|
| "There are places on Mars where the temperature reaches
| relatively warm
| -10 to 0 degrees and perhaps even above 0?C," Whyte said, "and on Axel
| Heiberg it gets down to -50, easy."
|
| And recent data suggests Mars also has methane and frozen water
| <http://www.space.com/scienceastronomy/090115-mars-methane-news.html>.
|
| "If you have a situation where you have very cold salty
| water, it could
| potentially support a microbial community, even in that extreme harsh
| environment
| <http://www.livescience.com/animals/050207_extremophiles.html>."
|
| The discovery is detailed in the International Society for Microbial
| Ecology Journal.
|
|
| ------------------------------
|
| Message: 20
| Date: Thu, 10 Jun 2010 16:46:33 -0700 (PDT)
| From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
| Subject: [meteorite-list] New Model Is Proposed to Explain Absence of
| Organic Compounds on Surface of Mars
| To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
| Message-ID: <201006102346.o5ANkXZP026945 at zagami.jpl.nasa.gov>
| Content-Type: text/plain; charset=us-ascii
|
|
|
| Mary Ann Liebert, Inc., Publishers
| Contact: Vicki Cohn
| Mary Ann Liebert, Inc.
| (914) 740-2100, ext. 2156
| vcohn at liebertpub.com
|
| For Immediate Release
|
| New Model Is Proposed to Explain Absence of Organic Compounds
| on Surface of Mars
|
| New Rochelle, June 10, 2010 - The ongoing search for evidence
| of past or
| present life on Mars includes efforts to identify organic
| compounds such
| as proteins in Martian soil, but their absence to date remains a
| mystery. A new theory to explain what happens to these carbon-based
| molecules is presented in an article published in Astrobiology, a
| peer-reviewed journal published by *Mary Ann Liebert, Inc
| <http://cl.exct.net/?qs=97fedff095471e983a892ac0dc3aad36dafafb
| b1325782a25edc67ddec013666>.*
| The article is available free online
| <http://cl.exct.net/?qs=97fedff095471e98ccccc9761f9002c96987c5
| 94a653787d99cfa30a353d28cd>.
|
| "There may be no 'safe haven' for these organic molecules on Mars,"
| conclude Ilya Shkrob, Sergey Chemerisov, and Timothy Marin, from
| Argonne National Laboratory and Benedictine University, in
| Illinois, in
| their article entitled "Photocatalytic Decomposition of Carboxylated
| Molecules on Light-Exposed Martian Regolith and its Relation
| to Methane
| Production on Mars."
|
| Unlike on Earth, where plants and other organisms convert
| carbon dioxide
| and water into organic compounds via photosynthesis, the
| authors propose
| that the opposite happens on the surface of Mars. The iron oxides that
| make up Martian soil and give the planet its distinctive red color are
| photocatalysts. They use energy from ultraviolet light
| absorbed through
| the thin Martian atmosphere to oxidize carbon-containing organic
| molecules trapped in soil particles, converting them to carbon dioxide
| and gases such as methane.
|
| The authors present study data to support this model and to
| explain why
| it might not be realistic to rely on the discovery of proteins, amino
| acids, and other carbon-containing compounds in the upper
| soil layers of
| Mars to determine whether life forms are or have been present
| on the planet.
|
| "This is an interesting result and may be an important step in solving
| the enduring mystery of organics on Mars," says Christopher P. McKay,
| Senior Editor of Astrobiology and Research Scientist at NASA Ames
| Research Center. "We see organics in many places in the solar
| system but
| have not been able to detect them on Mars - the planet that
| we think had
| the most Earth-like conditions. Why? Could it be our
| instrument approach
| has been wrong? Or could it be that there is some chemistry
| on Mars that
| is actively destroying organics? This work points toward this latter
| explanation. Mars may have a self cleaning surface. If so, we may have
| to dig deeply to find any organic materials."
|
| "The importance of drilling below the Martian surface for rocks and
| soils that might retain preserved organics is certainly on
| the minds of
| future mission scientists," says Sherry L. Cady, PhD, Editor of
| Astrobiology and Associate Professor in the Department of Geology at
| Portland State University. "The possible 2018 joint ESA-NASA
| mission is
| a case in point."
|
| Astrobiology is an authoritative peer-reviewed journal published 10
| times a year in print and online. The Journal provides a forum for
| scientists seeking to advance our understanding of life's origins,
| evolution, distribution, and destiny in the universe. The complete
| tables of content and the full text for this issue may be
| viewed online
| <http://cl.exct.net/?qs=97fedff095471e98ccccc9761f9002c96987c5
| 94a653787d99cfa30a353d28cd>.
|
| Mary Ann Liebert, Inc. is a privately held, fully integrated media
| company known for establishing authoritative peer-reviewed journals in
| many promising areas of science and biomedical research. Its
| biotechnology trade magazine, Genetic Engineering & Biotechnology News
| (GEN), was the first in its field and is today the industry's most
| widely read publication worldwide. A complete list of the firm's 60
| journals, books, and newsmagazines is available at our website
| <http://cl.exct.net/?qs=97fedff095471e983a892ac0dc3aad36dafafb
| b1325782a25edc67ddec013666>.
|
|
|
|
| ------------------------------
|
| Message: 21
| Date: Fri, 11 Jun 2010 10:12:33 +1000 (EST)
| From: "Bob WALKER" <qwalkra at mailbox.ezadsl.net.au>
| Subject: [meteorite-list] can a listoid translate this prev unseen
| meteorite medallion insert for me ?
| To: meteorite-list at meteoritecentral.com
| Message-ID:
| <51852.121.222.30.54.1276215153.squirrel at webspace.ezadsl.net.au>
| Content-Type: text/plain;charset=iso-8859-1
|
| Listoids
|
| A prev unseen meteorite medallion ?
|
| Yep - I've snaffled this for ME !
|
| Pix at:
|
| http://www.qmig.net/meteoritemedallion1.jpg
| http://www.qmig.net/meteoritemedallion2.jpg
| http://www.qmig.net/meteoritemedallion3.jpg
| http://www.qmig.net/meteoritemedallion4.jpg
|
| I would very much appreciate if some/any of the listoids
| could translate
| the german insert to english for me ? buckleboo Martin A
|
| And... how many other unknown meteorite medallions are out
| there and for
| sale ?
|
| Please contact me off-list if u know where there are any
| other prev unseen
| kreatures for sale
|
| Best
|
| Bob WALKER
| http://www.qmig.net
|
|
|
|
| ------------------------------
|
| _______________________________________________
| Meteorite-list mailing list
| Meteorite-list at meteoritecentral.com
| http://six.pairlist.net/mailman/listinfo/meteorite-list
|
|
| End of Meteorite-list Digest, Vol 82, Issue 24
| **********************************************
|
|
Received on Fri 11 Jun 2010 12:57:07 PM PDT