Hi List, The CRE of the various Martian meteorites ranges from just under one million years to almost twenty million years. In terms of overall geologic history, this is a recent window of impact events that has produced the Martian meteorites in our collections.
Scientists have confirmed the Martian origin of these meteorites by analyzing trapped atmospheric gases inside the meteorites. However, the composition of the trapped gases is being compared against very recent data (starting with Viking). Does this mean that the Martian atmosphere has not changed in millions of years? Or, do the analyses take into account observed/theorized changes in the atmospheric chemistry? I am a little unclear on this. Best regards, MikeG -- ------------------------------------------------------------- Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone ------------------------------------------------------------- ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
