Evidence for a Late-Stage Thermal Overprint in Allan Hills 84001 and Implications for Biomarkers

Details Evidence for a Late-Stage Thermal Overprint in Allan Hills 84001 and Implications for Biomarkers Evidence for a Late-Stage Thermal Overprint in Allan Hills 84001 and Implications for Biomarkers

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mmws.work...47s&link_type=abstract

Workshop on the Issue Martian Meteorites: Where do we Stand and Where are we Going?, p. 47

Physics

Carbonates, Snc Meteorites, Olivine, Glass, High Temperature, Magnetite, Iron, Siderites

Scientific paper

Deciphering the thermal history of ALH 84001 is essential in evaluating the evidence for possible fossil life in that martian meteorite. The focus of this debate has primarily involved the temperature of carbonate formation and has virtually ignored the postdepositional history of the carbonates. Here, we provide evidence for a transient, high-temperature thermal pulse following carbonate deposition and describe possible effects on the carbonates that previously have been attributed to low-temperature processes and biogenic activity.

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