Computer Science
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..805l&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 805.
Computer Science
5
Oxygen Isotopes, Constraints, Carbonates, Mars Environment, Meteorites, Crystallization, Hydrocarbons, Aromatic Compounds
Scientific paper
With a crystallization age of 4.5 Ga, ALH84001 is unique among the Martian meteorites. It is also the only Martian meteorite that contains an appreciable amount of carbonate, and significantly, this carbonate occurs without associated secondary hydrated minerals. Moreover, McKay et al. (1996) have suggested that ALH84001 contains evidence of past Martian life in the form of nanofossils, biogenic minerals, and polycyclic aromatic hydrocarbons. The presence of carbonate in ALH84001 is especially significant. The early Martian environment is thought to have been more hospitable to life than todays cold, dry climate. In order to better assess the true delta-O-18 values, as well as the isotopic diversity and complexity of the ALH84001 carbonates, direct measurements of the oxygen and carbon isotopic compositions of individual carbonate phases are needed. Here we report in situ analyses of delta-O-18 values in carbonates from two polished thin sections of ALH84001.
Harvey Ralph P.
Leshin Laurie Ann
McKeegan Kevin D.
No associations
LandOfFree
Oxygen isotopic constraints on the genesis of carbonates from Martian meteorite ALH84001 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 Oxygen isotopic constraints on the genesis of carbonates from Martian meteorite ALH84001, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen isotopic constraints on the genesis of carbonates from Martian meteorite ALH84001 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-872839