NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Forsterite/melt partitioning of argon and iodine: Implications for atmosphere formation by outgassing of an early Martian magma oceanArgon and Xe in the Martian atmosphere are radiogenic relative to the Martian mantle if the SNC meteorites are from Mars. Decay of the short lived isotope I-129 to Xe-129 (t sub 1/2 = 16 m.y.) is the most plausible source of the radiogenic Xe. This short half life constrains any process responsible for the elevated Xe-129/Xe-132 ratio of the Martian atmosphere to occur very early in solar system history. Musselwhite et al. proposed that the differential solubility of I and Xe in liquid water played a key role in producing the radiogenic signature in the Martian atmosphere. Here we explore an alternative hypothesis involving purely igneous processes, and motivated in part by new experimental results on the partitioning of I and Xe between minerals and melt.
Document ID
19920019361
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Musselwhite, Donald S.
(Arizona Univ. Tucson, AZ, United States)
Drake, Michael J.
(Arizona Univ. Tucson, AZ, United States)
Swindle, Timothy D.
(Arizona Univ. Tucson, AZ, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Publication Information
Publication: Lunar and Planetary Inst., Workshop on the Physics and Chemistry of Magma Oceans from 1 Bar to 4 Mbar
Subject Category
Geophysics
Accession Number
92N28604
Funding Number(s)
CONTRACT_GRANT: NAG9-39
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available