[meteorite-list] Perth meteorite

From: Tomk <tomk_at_meteoritecentral.com>
Date: Sat, 6 Mar 2010 14:05:20 +1100
Message-ID: <!&!AAAAAAAAAAAYAAAAAAAAAEG1VozY5HVEqthCFNdFxgfCgAAAEAAAAAwLoq/hQPlOhqFMFqpIraUBAAAAAA==_at_crystal-world.com>

If W.A. museum claims ownership of the meteorite ,does that mean they
will be liable for the damage it causes ?

Tom Kapitany
B.Sc. Geology/Botany
Managing Director


Crystal World & Prehistoric Journeys
Australian Mineral Mines Pty. Ltd.
13 Olive Rd Devon Meadows 3977
Victoria Australia .

Phone: (61-3) 59982493
Fax: (61-3) 59982685
Email: tomk at crystal-world.com
Web: www.crystal-world.com
         www.collectorscorner.com.au

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Today's Topics:

   1. Perth Hammer? (Meteorites USA)
   2. Fwd: METEORITES STOLEN IN JAPAN (Darryl Pitt)
   3. Odd Stone (Meteorites USA)
   4. Matt Morgan, where are you? (valparint at aol.com)
   5. Cuddeback Dry Lake in California (GeoZay at aol.com)
   6. Mars Express: Phobos Flyby Success (Ron Baalke)
   7. Re: Odd Stone - Update (Meteorites USA)
   8. Mars Exploration Rovers Update: February 24 - March 3, 2010
      (Ron Baalke)
   9. Re: Clue to Antarctica Space Blast (Sterling K. Webb)
  10. Hole new theory on life (Greg Stanley)
  11. Re: Odd Stone - Update (and another similar oddball)
      (Galactic Stone & Ironworks)
  12. Meteorites and Humidity: Some Questions . . . (gracie)


----------------------------------------------------------------------

Message: 1
Date: Fri, 05 Mar 2010 09:01:46 -0800
From: Meteorites USA <eric at meteoritesusa.com>
Subject: [meteorite-list] Perth Hammer?
To: Meteorite-list <meteorite-list at meteoritecentral.com>
Message-ID: <4B9138FA.7060304 at meteoritesusa.com>
Content-Type: text/plain; charset=windows-1252; format=flowed

Looks like we may have another.

--------------------------------------------------------
ARTICLE: Museum investigates meteorite claims
Glenn Cordingley
From: PerthNow
March 05, 2010 2:58PM
SOURCE:
http://www.perthnow.com.au/news/special-features/museum-investigates-meteori
te-claims/story-e6frg1ac-1225837470139

WA Museum curators will investigate claims a meteorite crashed into a
home of a north-eastern suburb in Perth.

A museum spokesman said a woman had claimed a meteorite hit her
Beechboro home last night.

?All we know is a house has been hit by a suspected meteorite but we
have not had a chance to verify this,? a museum spokesman said.

?We are trying to get it over to the museum for one of our scientists to
have a look at but at this stage we do not know if it?s a rock or a
meteorite.?

Email us: Send us your meteorite pictures

Perth Observatory said it had received a ?couple of reports? last night
from people phoning to say they had seen a light in the sky.

?At this stage no one seems to be able to put it all together, but if it
was a meteor it belongs to the WA Government, observatory astronomer
Ralph Martyn said.

?The reports at this stage are very sketchy.?

He said the observatory was waiting to inspect a photograph of the object.

?A lot of people find slag out of glass furnaces and think they are
meteorites as well, they kind of look the same.?
--------------------------------------------------------

Have our friends in Australia heard anything more on this one?

Regards,
Eric Wichman
Meteorites USA



------------------------------

Message: 2
Date: Fri, 5 Mar 2010 12:09:08 -0500
From: Darryl Pitt <darryl at dof3.com>
Subject: [meteorite-list] Fwd: METEORITES STOLEN IN JAPAN
To: Meteorite List <meteorite-list at meteoritecentral.com>
Cc: drtanuki <drtanuki at yahoo.com>, Hiroko Nagahara
        <vice at meteoriticalsociety.org>
Message-ID: <116117F3-B84D-43F3-BEDB-B89D7C8D5CEC at dof3.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes



I've just received a couple of emails inquiring about the Meteoritical
Society's vice department as implied by the email "vice at meteoritesociety.org

"

There is no such department. While wondering who to contact at the
Society I happened to notice the vice-president of the Society is
Japanese and that's her email. ;-)




Begin forwarded message:

> From: Darryl Pitt <darryl at dof3.com>
> Date: March 5, 2010 11:30:02 AM EST
> To: Meteorite List <meteorite-list at meteoritecentral.com>
> Cc: drtanuki <drtanuki at yahoo.com>, Hiroko Nagahara
<vice at meteoriticalsociety.org
> >
> Subject: [meteorite-list] METEORITES STOLEN IN JAPAN
>
>
>
> For Japanese and Japanese-speaking List Members in particular:
>
> It pains me to write the following, but I do so at the request of
> dear friends Akiko Umai and Gene Oshima who run TIMA---the Tokyo
> International Mineral Association---and the "Tokyo Show" of early
> summer.
>
> Shoichi Saito is a Japanese meteorite dealer who had a little nook
> in the TIMA offices at the Century Hyatt from which he transacted
> business the last few years---primarily consignment pieces. As the
> generous spirit he is, Gene subsidized Saito, whose business fell
> into decline. I am now advised Saito and the entire inventory of
> meteorites---including many specimens from Gene's personal
> collection---have disappeared.
>
> I was just asked to contact the Meteoritical Society as my friends
> were hopeful that Saito's membership in the Society might prompt
> some type of intervention. More realistically, I am awaiting the
> names of the missing meteorites.
>
> ______________________________________________
> 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: Fri, 05 Mar 2010 12:01:18 -0800
From: Meteorites USA <eric at meteoritesusa.com>
Subject: [meteorite-list] Odd Stone
To: Meteorite-list <meteorite-list at meteoritecentral.com>
Message-ID: <4B91630E.3080803 at meteoritesusa.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Visible "metal" flecks, slight magnetism, odd inclusions. Olivine?
http://www.meteoritesusa.com/odd-stones/

Any ideas? Opinions are appreciated.

Regards,
Eric Wichman


------------------------------

Message: 4
Date: Fri, 5 Mar 2010 13:12:24 -0700
From: <valparint at aol.com>
Subject: [meteorite-list] Matt Morgan, where are you?
To: <meteorite-list at meteoritecentral.com>
Message-ID: <55D190EA5DE34ABB9827BCAE1B280AE2 at vpoffsiteweb.local>
Content-Type: text/plain

Matt,

Seems your web site is inaccessible because the URL registration expired.
Please contact me about my recent request. (www.valparint.com)

Thanks.

Paul Swartz


------------------------------

Message: 5
Date: Fri, 5 Mar 2010 15:52:53 EST
From: GeoZay at aol.com
Subject: [meteorite-list] Cuddeback Dry Lake in California
To: meteorite-list at meteoritecentral.com
Message-ID: <22749.353ecc29.38c2c925 at aol.com>
Content-Type: text/plain; charset="US-ASCII"


I'm trying to find a place to do my first meteorite hunt and I've been
thinking about perhaps trying Cuddeback Dry Lake in California near
Randsburg
along highway 395. While searching various websites, I see that Bob Verish
has found a meteorite there in 2000. So I guess it has potential. What
makes me a little nervous is the various military bomb ranges in the area.
On
one map, I noticed a big circle to the north west of the lake designating a

bombing training area. Does anyone know if any of these bomb training
sites extends into the dry lake itself? My next concern is getting to the
lake,
its about 7 miles from highway 395 starting at a spot called Atolia. Does
anyone know if this road is marked from Atolia and whether it is a good
enuf road to make your way to the dry lake? Also does anyone know if the dry

lake and the area leading up to it is BLM land? I presume its okay to camp
once I'm beyond Atolia, but not sure. The maps I have access to don't show
much detail...sure would like to see a Topo map for the region. Any
suggestions would be appreciated.
GeoZay



------------------------------

Message: 6
Date: Fri, 5 Mar 2010 13:34:36 -0800 (PST)
From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
Subject: [meteorite-list] Mars Express: Phobos Flyby Success
To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
Message-ID: <201003052134.o25LYaLP007600 at zagami.jpl.nasa.gov>
Content-Type: text/plain; charset=iso-8859-1


http://www.esa.int/SPECIALS/Mars_Express/SEMIPX6K56G_0.html

Phobos Flyby Success
European Space Agency
4 March 2010

Mars Express encountered Phobos last night, smoothly skimming past at
just 67 km, the closest any manmade object has ever approached Mars'
enigmatic moon. The data collected could help unlock the origin of not
just Phobos but other "second generation" moons.
 
Something is not right about Phobos. It looks like a solid object but
previous flybys have shown that it is not dense enough to be solid all
the way through. Instead, it must be 25-35% porous. This has led
planetary scientists to believe that it is little more than a "rubble
pile" circling Mars. Such a rubble pile would be composed of blocks both
large and small resting together, with possibly large spaces between
them where they do not fit easily together.

Last night's flyby was close enough to give scientists their most
exquisite data yet about the gravitational field of Phobos. Mars Express
locked onto the radio signal from Earth at around 21:20 CET (20:20 UT).
The radio frequency oscillators on the ground are 100 000 times more
stable than those on the spacecraft, so for this experiment, which
required the best precision possible, the signal was sent up to Mars
Express and then returned by the spacecraft to the ground.
 
The radio waves travel at the speed of light and took 6 minutes 34
seconds to travel from Earth to the spacecraft last night. So the round
trip time was 13 minutes 8 seconds. Once the signal was received back at
Earth, it was clearly strong and good. So strong that radio amateurs
were also able to lock onto the signal, although their equipment would
not be able to detect the subtle variations induced by the gravity of
Phobos.

Now that the data are all collected, the analysis can begin.First will
be an estimate of the density variation across the moon. This will tell
scientists just how much of Phobos' interior is likely to be composed of
voids.

"Phobos is probably a second-generation Solar System object," says
Martin P??tzold, Universitat Koln, Cologne, Germany, and Principal
Investigator of the Mars Radio Science (MaRS) experiment. Second
generation means that it coalesced in orbit after Mars formed, rather
than forming concurrently out of the same birth cloud as the Red Planet.
There are other moons around other planets where this is thought to have
been the case too, such as Amalthea around Jupiter.
 
Whatever the precise origin, Phobos will eventually crumble back into
this disrupted state. It is gradually spiralling towards Mars and will
eventually be pulled apart. "It came from debris, it will return to
debris," says P??tzold. In the meantime, it is there to be studied and
explored.

Last night's flyby was just one of a campaign of 12 Mars Express flybys
taking place in February and March 2010. For the previous two, the radar
was working, attempting to probe beneath the surface of the moon,
looking for reflections from structures inside. In the coming flybys,
the Mars Express camera will take over, providing high resolution
pictures of the moon's surface.
 
More information
 
Updates as the flybys continue will be posted on the Mars Express blog
<http://webservices.esa.int/blog/blog/7>.
 
 
Contacts for editors:
 
Martin Patzold
Principal Investigator of the Mars Radio Science (MaRS) experiment
Universitat Koln, Germany
Email: mpaetzol at uni-koeln.de

Olivier Witasse
ESA Project Scientist Mars Express
ESTEC, The Netherlands
Email: owitasse at rssd.esa.int
 



------------------------------

Message: 7
Date: Fri, 05 Mar 2010 13:53:49 -0800
From: Meteorites USA <eric at meteoritesusa.com>
Subject: Re: [meteorite-list] Odd Stone - Update
To: meteorite-list at meteoritecentral.com
Message-ID: <4B917D6D.2060805 at meteoritesusa.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Higher resolution images of Stone #1 has been uploaded to the page:
Exterior - http://www.meteoritesusa.com/images/odd-stone-1-hires.jpg
Interior - http://www.meteoritesusa.com/images/odd-stone-1a-hires.jpg
Metal? - http://www.meteoritesusa.com/images/odd-stone-1b-hires.jpg

I've also added Stone #2 to the page as well: Scroll down the page for
photos of this meteorite. Stone #2 is no doubt a meteorite, but the type
I'm not sure of. Nice crust, and gorgeous light interior with big dark
clasts.
http://www.meteoritesusa.com/odd-stones/

Thought and opinions are welcome and appreciated on both stones.

Thanks to those who have provided private opinions thus far.

Regards,
Eric Wichman
Meteorites USA


On 3/5/2010 12:01 PM, Meteorites USA wrote:
> Visible "metal" flecks, slight magnetism, odd inclusions. Olivine?
> http://www.meteoritesusa.com/odd-stones/
>
> Any ideas? Opinions are appreciated.
>
> Regards,
> Eric Wichman
> ______________________________________________
> 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: Fri, 5 Mar 2010 14:26:18 -0800 (PST)
From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
Subject: [meteorite-list] Mars Exploration Rovers Update: February 24
        - March 3, 2010
To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
Message-ID: <201003052226.o25MQIIU011621 at zagami.jpl.nasa.gov>
Content-Type: text/plain; charset=iso-8859-1


http://marsrovers.jpl.nasa.gov/mission/status.html

SPIRIT UPDATE: Winter Preparations Nearly Complete - sols 2185-2191,
February 24 - March 02, 2010:

Spirit is in her winter position, still embedded in the area called
"Troy" on the west side of Home Plate.

Efforts are nearing completion to prepare the rover for winter. Because
of the low power levels, multi-sol plans are being developed with
reduced communication activity to save energy. Only one or two planning
cycles occur each week. These plans have a single uplink to the rover
and few Ultra-High Frequency (UHF) downlinks to return the data. The new
long-range UHF communication table is onboard and various settings for
winter are being finalized.

As of Sol 2191 (March 2, 2010), the rover solar array energy production
was to 153 watt-hours with an atmospheric opacity (tau) of 0.331 and a
dust factor of 0.510. Total odometry is unchanged at 7,730.50 meters
(4.80 miles).

------------------------------------------------------------------------

OPPORTUNITY UPDATE: Driving Around Material Ejected From Young Crater -
sols 2166-2171, February 26 - March 03, 2010:

Opportunity is continuing the circumnavigation of "Concepci?n" crater.
During this period Opportunity traversed around a ray of ejecta that is
comprised of rock debris from the impact that formed the crater.

In Mars Reconnaissance Orbiter images these rocks and their shadows
appear as dark streaks extending to the south and southwest from
Concepci?n crater. Data collected on Sols 2165 (Feb. 25, 2010) and 2166
(Feb. 26, 2010), indicated potential targets for direct measurements
with the Instrument Deployment Device (IDD). A 22-meter (72-foot) drive
along the ejecta ray was performed on Sol 2167 (Feb. 27, 2010). However,
because of the assessed mobility risks associated with this part of the
jumbled rock field, no in-situ targets were approached. Instead the
rover continued the circumnavigation campaign with an 18-meter (59-foot)
drive around the ejecta ray on Sol 2171 (March 3, 2010).

As of Sol 2171 (March 3, 2010), the solar array energy production was
278 watt-hours with an atmospheric opacity (tau) of 0.396 and a dust
factor of 0.481. Total odometry is 19,399.57 meters (12 miles).



------------------------------

Message: 9
Date: Fri, 5 Mar 2010 16:49:17 -0600
From: "Sterling K. Webb" <sterling_k_webb at sbcglobal.net>
Subject: Re: [meteorite-list] Clue to Antarctica Space Blast
To: "Meteorite List" <meteorite-list at meteoritecentral.com>
Cc: Paul Heinrich <oxytropidoceras at cox.net>
Message-ID: <09EE4FC09A584EB8A4ECB308F71FBBA6 at ATARIENGINE2>
Content-Type: text/plain; format=flowed; charset="Windows-1252";
        reply-type=original

Hi, Paul, Greg, List

In February, 2006, SWRI published this paper in Science
announcing the discovery of an new recent asteroid family
associated with the asteroid 1270 Datura:
http://www.boulder.swri.edu/~bottke/Reprints/Nesvorny_Vok_Bottke_Science_200
6_Datura_breakup.pdf

A summary of its conclusions:
    "The newly identified family is a group of six 1- to
2.5-km-diameter asteroids, whose orbits are very
tightly clustered near the inner main belt of the
~10-km-diameter object 1270 Datura...
    The result (of hundreds of numerical simulations)
shows that the Datura cluster is 450 +/- 50
thousand years (ky) old (Fig. 1), considerably
younger than other known asteroid families...
    We estimate that the disrupted parent body was ~15 km
in diameter. Apparently, a substantial fraction of the
parent body's mass was ejected to space as fragments
ranging in size down to micrometer-sized dust particles.
The production of these particles implies that the
Datura cluster may be a source of some of the
material in the circumsolar (zodiacal) dust cloud...
    We estimate that micrometer-sized Datura particles
migrate by radiation effects from 2.235 AU to 1 AU in
only ~2000 years. Therefore, a wave of micrometer-sized
Datura particles may have reached Earth only a few
thousand years after the formation of the Datura cluster.
Signs of this event may be found by analyzing tracers
of extraterrestrial dust in deep ocean sediments and
Antarctic ice cores."

I wonder if these researchers were following up on that
last suggestion? At any rate, the minimum amount of
dust found in these separated cores would require
(they say) 3,000,000,000 kg of dust to reach the ice surface.
The characteristics of the dust show it was not blown in,
but was deposited at one time from above.

This amount of dust is 100 times greater than the
"normal" annual cosmic dustfall for the entire planet.
This is too much to be accounted for by dust bands
drifting in from the orbits of the Datura family. No, it
would require a "chunk" to be delivered all at once.

The impactor would have to be bigger than this minimum
amount of 3 million tons. To account for this amount of dust
would require a sphere of silicate about 130-135 meters
in diameter. If the dust is found further afield in Antarctica
or if not all of the body reached the ground as dust (it never
does), you are probably talking about an impactor at least
a quarter-kilometer in diameter.

As an illustration of this problem, everyone seems to agree
that Tunguska was an airburst of an object that had to
weight at least 50,000 or 100,000 tons, and yet no convincing
traces of the "impactor" can be demonstrated. This suggests
that if three million tons of Datura-type dust reached the
ice surface, the "impactor" could have been much, much
larger than three million tons.

Interestingly, ALL the news stories are ignoring the most
amazing part of this story. There are TWO dust layers BOTH
found 2000-3000 km apart. One is at 481,000 years ago
and the other is at 434,000 years ago. Both produced big
traces at both locations. So, we are talking about TWO
big impactors in less than 50,000 years.

One of the questions worth asking when talking about
recent big impactors is "Anymore at home like you?"
If, as Bottke says, the parent body was about 15 km
and we have a 10 km body and six 1- to 2.5-km-diameter
asteroids surviving from its breakup, they account for
only 40% of the parent body. 60% of the original body
is unaccounted for.

Did all 60% get turned into dust? Or are there some
undetected sub-kilometer bodies left over? 60% of that
parent body is enough to make up 16,000 500-meter
bodies. Even if 90% was turned to dust, that leaves
10% or enough for 1600 500-meter bodies. 1600 such
bodies is more than enough potential impactors. So is
1% or 160 500-meter bodies. Of course, in the real
world there is a variety of sizes created by a collision,
but there seems to plenty of rocks to go around.

Two massive airbursts over Antarctica in 47,000 years
is pushing at the limits of shrugging things off as random
chance. Antarctica is a mere 2.5% of the Earth's land
surface. If two such bodies fell on it in a short window
of time, we are dealing with a "shower." Shouldn't
random chance suggest 40 times as many impacts
for the rest of the Earth in that same 47,000 years?

Has anyone gone into the freezer and pulled the old
Greenland ice cores for 400 to 500 kyears ago? Can this
type of analysis be performed on Greenland cores? They
appear to only go back 500,000 years, are less complete
at this age, and Greenland has only 14% of the area of
Antarctica. I can't find any studies that show cosmic
dust in the ice at that age (or that looked for it).

The discovery of a fresh asteroid family has generated
spectral studies of their surfaces, mostly to gauge the
degree of "space weathering." Here's the result of optical
spectroscopy using the large Gemini telescopes:
http://www.gemini.edu/node/11082

They say:
    "Optical spectroscopy from the Gemini telescopes has
revealed a relatively uncommon type of asteroid in the
main-belt for the first time... They found that spectra of
asteroids in the newly discovered Datura family have a
deep absorption feature near 0.8 microns which classifies
them as ?Q-type? asteroids. This spectral feature is produced
by silicate material, in particular olivine and pyroxene. Most
interestingly, the spectra of Q-type objects are well-matched
to the most common type of meteorite found on Earth
called an ordinary chondrite (OC)."

The full paper on the spectra is available at:
http://adsabs.harvard.edu/abs/2008A%26A...486L...9M

OC's are only "ordinary" because they're common in
this geological era. 75% of all current falls are OC's. There
is a logic to the suggestion that geologically recent falls
come from the most recent asteroidal breakups. Are today's
ordinary chondrites common because they all came from
the youngest families like Datura? Some think so. (The
Datura spectra is an almost perfect match for the OC
FAYETTEVILLE):
http://www.sciencedaily.com/releases/2008/07/080710103903.htm

This odd because Fayetteville is a breccia of two very
different materials, and there is lots of argument about
it. Perhaps it dates from the breakup and one of the
materials is that of the disrupting body and the other
is from the Datura family parent body (or Datura itself).
Nobody knows (yet).

It all makes me wonder if there is any other evidence of
numerous impacts elsewhere on Earth between 400,000
and 500,000 years ago?


Sterling K. Webb
----------------------------------------------------------------------------
---
----- Original Message ----- 
From: "Paul Heinrich" <oxytropidoceras at cox.net>
To: "Meteorite List" <meteorite-list at meteoritecentral.com>
Sent: Wednesday, March 03, 2010 9:57 PM
Subject: [meteorite-list] Clue to Antarctica Space Blast
Greg wrote:
?Interesting
http://news.bbc.co.uk/2/hi/science/nature/8547534.stm
Clues to Antarctica space blast By Paul Rincon
Science reporter, BBC News, The Woodlands, Texas?
The paper is:
Engrand, C. B. Narcisi, J. r. Petit, E. Dobrica, and J. Duprat,
2010, Isotopes of EPICA ? Dome C Extraterrestrial Dust Layers:
Constraints on the Nature of the Impactors. 41st Lunar and
Planetary Science Conference, held March 1-5, 2010 in The
Woodlands, Texas. LPI Contribution No. 1533, p.1981
http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1981.pdf
http://adsabs.harvard.edu/abs/2010LPI....41.1981E
Related papers are:
1. Misawa, K., M. Kohno, T. Tomiyama, T. Noguchi, T.
Nakamura, K. Nagao, T.Mikouchi, and K. Nishiizumi, 2010,
Two extraterrestrial dust horizons found in the Dome Fuji
ice core, East Antarctica. Earth and Planetary Science Letters.
vol. 289, no. 1-2, pp. 287-297.
http://dx.doi.org/10.1016/j.epsl.2009.11.016
http://www.ssl.berkeley.edu/cosmochem/publications.html
The PDF for the above paper can be downloaded from
the link for this paper at:
http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%23580
1%232010%23997109998%231578540%23FLA%23&_cdi=5801&_pubType=J&view=c&_auth=y&
_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=0377f75ed4c6eabaca0
119b87f30f76c
2. Narcisi, B., J. Robert Petit, and B. Delmonte, nd, Extended
East Antarctic ice-core tephrostratigraphy Quaternary Science
Reviews, Article in Press, Corrected Proof
http://dx.doi.org/10.1016/j.quascirev.2009.07.009
3. Narcisi, B., J. R. Petit, and C. Engrand, 2007, First discovery
of meteoritic events in deep Antarctic (EPICA-Dome C) ice cores.
de la Recherche Scientifique & Universit? Paris Sud, Orsay, France)
Geophysical Research Letters. vol. 34, no. 15, CiteID L1550
http://adsabs.harvard.edu/abs/2007GeoRL..3415502N
http://www.agu.org/pubs/crossref/2007/2007GL030801.shtml
A summary paper about the icecores:
Wolff, E. W., C. Barbante. S. Becagli, and many, many others,
2010, Changes in environment over the last 800,000 years from
chemical analysis. Quaternary Science Reviews. vol. 29,
pp. 285?295.
http://www.climate.unibe.ch/~stocker/papers/wolff10qsr.pdf
http://www.climate.unibe.ch/~stocker/publications10.html
Yours,
Paul H.
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Message: 10
Date: Fri, 5 Mar 2010 15:22:22 -0800
From: Greg Stanley <stanleygregr at hotmail.com>
Subject: [meteorite-list] Hole new theory on life
To: <meteorite-list at meteoritecentral.com>
Message-ID: <SNT117-W13D91BECAF2EE8894CE09BD2380 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Just an amazing picture.
Nice artical too.
Greg S.
http://www.nationalpost.com/news/canada/story.html?id=2644178
Microbes found in Arctic meteor crater could help point to life on Mars
Randy Boswell, Canwest News Service? Published: Friday, March 05, 2010
Related Topics
Oceanographer Dale Stokes surveys the Haughton Crater on Devon Island in
Canada's Arctic. Ed Struzik, Canwest News Service Files Oceanographer Dale
Stokes surveys the Haughton Crater on Devon Island in Canada's Arctic.
Scientists studying an ancient meteorite crash site in the Canadian Arctic
have detected traces of microbes that point to the key role played by impact
craters in the evolution of life on Earth and could help determine whether
life once existed on Mars.
The discovery -- hailed by an 11-member team of researchers from Canada,
Britain, the United States and Sweden as a scientific "first" -- was made at
Devon Island's Haughton Crater, a uniquely dry and desolate geological gem
probed frequently by experts from NASA because of its Mars-like features.
"Meteorite impact craters have been proposed as possible sites to find
microbial life on Mars, as they are a focus for heat and water circulation,"
says the research team, including University of Western Ontario geologist
Gordon Osinski.
The researchers examined meteorite-shocked rocks from numerous sites
throughout the 24-kilometrewide crater and found telltale traces of sulphur
left behind by heat-loving, "thermophilic" bacteria that moved into the
crash site after the impact.
"Evidence of widespread microbial activity" in the Canadian crater, the team
says, has "shown for the first time that a crater was pervasively colonized
by microbes, and that colonization of over 20 cubic kilometres of impact
rock was rapid, within 10,000 years after impact, while the rock was still
warm."
The team concludes: "This emphasizes the potential of impact craters in the
evolution of early life on Earth, and the search for life on other planets."
Several of the researchers, including team leader John Parnell of the
University of Aberdeen, have made previous findings at the Haughton Crater,
highlighting its value in the search for extraterrestrial life as well as in
detecting signs of tiny, primordial organisms from the dawn of Earth
history.
In 2005, a Parnell-led study at the Nunavut site yielded proof that
billion-year-old "biomarkers" -- faint chemical traces of organic matter --
had survived the massive meteor strike that created the Haughton crater 23
million years ago.
The latest project has yielded proof that the space rock that struck Devon
Island created warm, protective niches for microscopic organisms, allowing
them to flourish -- and leave fossilized signatures of their activity --at
the impact site.
The remoteness and "polar desert" environment of Devon Island means the
crater has undergone much less change than other impact sites around the
world, making it one of the best places on Earth to study a simulated
Martian landscape.
Spacecraft that have probed Mars in recent years have fuelled a belief among
experts the planet once had water and supported rudimentary forms of life.
Scientists seeking signs of extraterrestrial life are increasingly focused
on developing techniques to detect infinitesimally small organisms,
fossilized remnants of microbes or merely the faint traces of the
biochemical building blocks needed as a base for life's primordial soup.
In 2004, British scientist Charles Cockell described Devon Island as one of
the Earth's best remaining examples of "the sort of habitat that would have
given rise to life on Earth."
And based on his studies of the Haughton Crater, Mr. Cockell stated at the
time such impact sites offer a warm, hospitable habitat for bacteria and
algae, and also for the "pre-biotic" proteins that had to come together for
that first spark of life on Earth.
Read more:
http://www.nationalpost.com/news/canada/story.html?id=2644178#ixzz0hLbjvqJ8
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------------------------------
Message: 11
Date: Fri, 5 Mar 2010 20:16:04 -0500
From: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
Subject: Re: [meteorite-list] Odd Stone - Update (and another similar
	oddball)
To: Meteorites USA <eric at meteoritesusa.com>
Cc: meteorite-list at meteoritecentral.com
Message-ID:
	<e51421551003051716i5028e775w974a50987379a29f at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi Eric and List,
Your stone reminds me of one that I have had for a while.  It exhibits
very weak attraction to a magnet, and it looked like a weathered OC on
the outside with typical windpolished desert varnish and lack of
crust.
When I windowed it, I say a mottled grey matrix with no visible
chondrules.  There are dark grey areas set in a lighter grey matrix.
There is some visible oxidation on the cut face where there is
presumably some metal, although I can't see it easily.  This pieces
weighs 14 grams.
I  am guessing it might be some kind of L6 or LL6, although it would
be great if it was an achondrite.
http://i268.photobucket.com/albums/jj24/Meteoritethrower/odd-2.jpg
http://i268.photobucket.com/albums/jj24/Meteoritethrower/odd-3.jpg
http://i268.photobucket.com/albums/jj24/Meteoritethrower/odd-1.jpg
Best regards,
MikeG
On 3/5/10, Meteorites USA <eric at meteoritesusa.com> wrote:
> Higher resolution images of Stone #1 has been uploaded to the page:
> Exterior - http://www.meteoritesusa.com/images/odd-stone-1-hires.jpg
> Interior - http://www.meteoritesusa.com/images/odd-stone-1a-hires.jpg
> Metal? - http://www.meteoritesusa.com/images/odd-stone-1b-hires.jpg
>
> I've also added Stone #2 to the page as well: Scroll down the page for
> photos of this meteorite. Stone #2 is no doubt a meteorite, but the type
> I'm not sure of. Nice crust, and gorgeous light interior with big dark
> clasts.
> http://www.meteoritesusa.com/odd-stones/
>
> Thought and opinions are welcome and appreciated on both stones.
>
> Thanks to those who have provided private opinions thus far.
>
> Regards,
> Eric Wichman
> Meteorites USA
>
>
> On 3/5/2010 12:01 PM, Meteorites USA wrote:
>> Visible "metal" flecks, slight magnetism, odd inclusions. Olivine?
>> http://www.meteoritesusa.com/odd-stones/
>>
>> Any ideas? Opinions are appreciated.
>>
>> Regards,
>> Eric Wichman
>> ______________________________________________
>> Visit the Archives at
>> http://www.meteoritecentral.com/mailing-list-archives.html
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>>
> ______________________________________________
> Visit the Archives at
> http://www.meteoritecentral.com/mailing-list-archives.html
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> Meteorite-list at meteoritecentral.com
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>
-- 
------------------------------------------------------------
Mike Gilmer - Galactic Stone & Ironworks Meteorites
http://www.galactic-stone.com
http://www.facebook.com/galacticstone
------------------------------------------------------------
------------------------------
Message: 12
Date: Fri, 5 Mar 2010 20:41:13 -0500
From: "gracie" <gracie at sheverb.com>
Subject: [meteorite-list] Meteorites and Humidity: Some Questions . .
	.
To: "MeteorList" <meteorite-list at meteoritecentral.com>
Message-ID:
	<94b161bd003540c9214e3ca67a410410.squirrel at www.sheverb.com>
Content-Type: text/plain;charset=iso-8859-1
Hello Met List!
Quick background info:
About six or eight months ago, I began a meteorite collection. (I am so
completely hooked.) I store them primarily in Riker boxes and some in the
jewel cases they arrived in. I live in north central Florida and except
for my air conditioned home, I don't have the meteorites in any other
climate controlled container or cabinet. I'm noticing a few of the irons
(Miles especially) and one or two of the stony irons to appear a little
rustier than when they arrived.
I've read the good information here
(http://www.meteoritemarket.com/preserv.htm), but still have some
questions.
Given my location, is it unreasonable for me to expect that simply
purchasing (and consistently replacing) desiccant for each Riker box and
jewel box will stave off rust? I love having my meteorites on display and
the notion of squirreling them away in airtight tupperware makes me sad.
That being said, I would prefer to protect them than have them ruined by
humidity.
There are a number of places I can purchase desiccant online. Is there a
preferred or recommended location?
Finally, is a kit like this worth my time and money?
http://www.bhigr.com/store/product.php?productid=453
Thanks so much for your help!
Gracie
------------------------------
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End of Meteorite-list Digest, Vol 79, Issue 21
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