[meteorite-list] Mercury question

From: Michael Gilmer <*meteoritemike_at_meteoritecentral.com*> Date: Fri, 17 Jun 2011 16:36:02 -0400 Message-ID: <BANLkTikRVrQPDTF6d5NHQp_ytZ41HJEfJA_at_mail.gmail.com> · meteoritemike_at_meteoritecentral.com

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On 6/17/11, Pete Pete <rsvp321 at hotmail.com> wrote:
>
>
>
> I love it when scientific consensus gets turned on its head with facts!
>
> (My first astronomy book, Golden Library of Knowledge, "The Moon", 1959, has
> three theories for the creation of lunar craters; volcanic, meteorite, and
> the bubble theory - popping bubbles while in a molten state)
>
>
>
> I'm assuming that angrites are slowly being discounted from Mercury origin?
>
>
>
> Cheers,
>
> Pete
>
>
>
>> From: sterling_k_webb at sbcglobal.net
>> To: meteorite-list at meteoritecentral.com
>> Date: Fri, 17 Jun 2011 13:20:09 -0500
>> Subject: Re: [meteorite-list] Mercury question
>>
>> Carl, List,
>>
>> Only one Mercury question?
>>
>> What is revealed from the first bulk composition
>> scans is that Mercury surface, and presumably its
>> crust, is composed of high-potassium non-feldspar
>> rocks. In a word, Mercury is nothing like it's
>> "supposed" to be.
>>
>> Mercury appears to have been made (the rock
>> part) from high-volatile stuff, a notion that stands
>> everything everybody has ever thought about
>> Mercury on its head.
>> http://www.youtube.com/watch?v=mrBCExa2Rgw&feature=player_embedded
>>
>> Being non--field-geologically literate, I would
>> like somebody on the List to post a list of Earthly
>> high-potassium non-feldspar rocks rich in sulfur.
>> I suppose that would be a bunch of high-potassium
>> metallic sulfides, because one of the things we're
>> seeing is a lot of sulfur on the surface of Mercury.
>> Those yellow markings and stains in the photos?
>>
>> I don't think anybody ever thought Mercury
>> would be a place rich in volatiles -- completely
>> illogical.
>>
>> Welcome to the Real World...
>>
>> When I started out every book said the craters
>> on the Moon were volcanoes. We spent a noticeable
>> amount of the time we were actually ON the Moon
>> looking for the evidence for lunar volcanoes. There
>> aren't any volcanoes on the Moon.
>>
>> In one of the early Messenger flyby's there was
>> a featured imaged called "Spider" crater. I posted
>> here that I was pretty sure it was a caldera volcano.
>> Now it appears that a lot of the "craters" on Mercury
>> MAY be volcanoes.
>>
>> It would ironic (at the least) if we were to go from
>> "Moon volcanoes that are really impacts" all the way
>> to "Mercury impacts that are really volcanoes"!
>> http://www.nytimes.com/2011/06/17/science/space/17mercury.html
>>
>> Even better would be if Mercurian volcanoes were caused by
>> impacts, because every geophysicist on Earth rejects the
>> notion that impacts could cause volcanoes (and flood basalts).
>>
>> As long as we are going to be wrong about most
>> things, why not be wrong about everything? (I love
>> that NYTimes headline "Close Up, Mercury Is Less
>> Boring." Well, Earth Monkeys, at least it's not as
>> boring as the NYTimes...
>>
>> Oh, the other thing is that the magnetic field of
>> Mercury is bigger (stronger) at one pole than the
>> other pole, just in case there's not already enough
>> weirdness.
>>
>> I have an easy explanation; Mercury's core is
>> EGG-SHAPED.
>>
>> Huh? Or two imperfectly merged cores of differing
>> sizes from a giant impact that did not completely
>> differentiate after the event.
>>
>> And let's not even get close to the question of how
>> a volatile-rich planet with a huge iron core could FORM
>> this close to the Sun...
>>
>>
>> Sterling K. Webb
>> ---------------------------------------------------------------------------
>> ----- Original Message -----
>> From: <cdtucson at cox.net>
>> To: "meteoritelist" <meteorite-list at meteoritecentral.com>
>> Sent: Thursday, June 16, 2011 5:41 PM
>> Subject: [meteorite-list] Mercury question
>>
>>
>> > List,
>> > I have a question.
>> > With this new data from MESSENGER about the surface composition of
>> > Mercury;
>> >
>> > http://messenger.jhuapl.edu/news_room/details.php?id=174
>> >
>> > What does this mean it terms of what a meteorite would be expected to
>> > look like?
>> > Would it be metallic -ish?
>> > Anyone, Thanks.
>> > Carl
>> >
>> > "Democracy is two wolves and a lamb voting on what to have for dinner.
>> > Liberty is a well-armed lamb contesting the vote".?
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>>
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