Other
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mmws.work...18g&link_type=abstract
Workshop on the Issue Martian Meteorites: Where do we Stand and Where are we Going?, p. 18
Other
1
Meteorites, Nakhlites, Olivine, Pyroxenes, Xenon Isotopes, Xenon 129, Argon Isotopes, Krypton Isotopes, Mars Atmosphere, Chemical Fractionation, Iodine, Chromatography, Barium
Scientific paper
A noble gas component with the elevated Xe-129 Xe-132 ratio characteristic of the martian atmosphere is found in Nakhla (and the other nakhlites). It is elementally fractionated with Kr-84/Xe-132 values depleted by factor of -5 relative to the martian atmospheric value (as measured in EET 79001 lithology C). We believe this fractionation reflects the processes by which it was derived from the martian atmosphere and incorporated in the meteorite. If, as has been suggested, aqueous alteration is responsible "iddingsite". Our aim is to locate the host phase(s) of the martian atmospheric Xe component and so determine what led to its incorporation and whether the same process can account for the elemental fractionation. We have previously reported analyses of mineral separates form Nakhla that showed the component with elevated Xe-129/Xe-132 is associated with olivine and pyroxene but concentrated in mesostasis. Combining our data with literature abundances of the major minerals suggests that approximately 10 percent of the martian atmosphere derived component is found in olivine with approximately half the remainder being associated with pyroxene and half with mesostasis. We have now supplemented these data with analyses of Nakhla samples crushed and etched in water and acid.
Burgess Ray
Gilmour James D.
Turner Gary
Whitby James A.
No associations
LandOfFree
Xenon and Argon Isotopes in Irradiated, Etched Nakhla: Characterizing the Host of Martian Atmospheric Xenon does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Xenon and Argon Isotopes in Irradiated, Etched Nakhla: Characterizing the Host of Martian Atmospheric Xenon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Xenon and Argon Isotopes in Irradiated, Etched Nakhla: Characterizing the Host of Martian Atmospheric Xenon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1611948