Mercury surface resembles rare meteor...

Mercury surface resembles rare meteorites

There are 1 comment on the MSNBC story from Sep 24, 2012, titled Mercury surface resembles rare meteorites. In it, MSNBC reports that:

Mercury has a surface unlike any other planet's in the solar system, instead resembling a rare type of meteorite, researchers say.

Join the discussion below, or Read more at MSNBC.

“Geologist [I'm Climate Change]”

Since: Mar 07

formerly Nuneaton

#1 Sep 26, 2012
This one is interesting for 2 reasons.

1st is that mercury is the result of a "splat" impact which left behind a giant iron core and a thin overlying shell of (initially molten) rock. The resulting surface rock is the result of diffrentiation of a starting pile with a bulk composition similar to the lower mantle. Enstatite chondrites are either rare because they were since knocked off the surface of mercury into solar orbit by a big impact; OR they formed at a particular pressure regime (low) in the lower mantle of a small body at a particular depth, making them a rare part of an asteroid mantle.

2ns interesting reason is its link to a potential large sungrazing comet (ISON) due in November 2013.

Have a nice day: Ag

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Geology Discussions

Title Updated Last By Comments
News It's Volcano Awareness Month on none other than... (Jan '10) May 22 Opinion 6
News Pele turns up the heat (Feb '09) May 20 Joe Balls 4
News The ground opened, Hawaii resident bids his hom... May 9 bobby2018 2
News No damage or injuries from earthquake in southw... Apr '18 Taz 1
News Oklahoma regulators limit water injection to we... Apr '18 crackemup 1
Fairy Stone Crosses Apr '18 Science Reader 1
News Earthquake fault runs through Rodeo Drive and B... Apr '18 Solarman 3