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X-ray Amorphous and Poorly Crystalline Fe-Containing Phases in Terrestrial Field Environments and Implications for Materials Detected on MarsRecent analyses of X-ray diffraction (XRD) data from the CheMin instrument using the FULLPAT program have documented the presence of X-ray amorphous materials at multiple sites within Gale Crater, Mars. These materials are believed to be to be iron-rich based on chemical data, and at least some of them are believed to be weathering products based on volatile contents. However, the characteristics of these proposed Fe-rich weathering products remain poorly understood. To better understand these X-ray amorphous materials on Mars, we are 1) examining weathering products formed on Fe-rich parent material in terrestrial soils across a range of climatic conditions, and 2) performing burial experiments of Fe- and Mg- rich olivine in these soils. We describe each of these approaches below.
Document ID
20190001840
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Feldman, A. D. (Nevada Univ. Las Vegas, NV, United States)
Hausrath, E. M. (Nevada Univ. Las Vegas, NV, United States)
Tschauner, O. (Nevada Univ. Las Vegas, NV, United States)
Burnley, P. (Nevada Univ. Las Vegas, NV, United States)
Lanzirotti, A. (Chicago Univ. Chicago, IL, United States)
Rampe, Elizabeth B. (NASA Johnson Space Center Houston, TX, United States)
Peretyazhko, Tanya (Jacobs Technology, Inc. Houston, TX, United States)
Calvin, W. (Nevada Univ. Reno, NV, United States)
Azua, B. (Nevada Univ. Las Vegas, NV, United States)
Adcock, C. T. (Nevada Univ. Las Vegas, NV, United States)
Date Acquired
March 25, 2019
Publication Date
March 18, 2019
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-E-DAA-TN66033
Meeting Information
Meeting: Lunar and Planetary Science Conference
Location: Woodlands, TX
Country: United States
Start Date: March 18, 2019
End Date: March 22, 2019
Sponsors: Lunar and Planetary Institute (LPI)
Funding Number(s)
CONTRACT_GRANT: DE-AC02-06CH11357
CONTRACT_GRANT: NNJ13HA01C
Distribution Limits
Public
Copyright
Public Use Permitted.

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