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Solar Ion Processing of Major Element Surface Compositions of Mature Mare Soils: Insights from Combined XPS and Analytical TEM ObservationsSolar wind ions are capable of altering the sur-face chemistry of the lunar regolith by a number of mechanisms including preferential sputtering, radiation-enhanced diffusion and sputter erosion of space weathered surfaces containing pre-existing compositional profiles. We have previously reported in-situ ion irradiation experiments supported by X-ray photoelectron spectroscopy (XPS) and analytical TEM that show how solar ions potentially drive Fe and Ti reduction at the monolayer scale as well as the 10-100 nm depth scale in lunar soils [1]. Here we report experimental data on the effect of ion irradiation on the major element surface composition in a mature mare soil.
Document ID
20120015815
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Christoffersen, R.
(Jacobs Technology, Inc. Houston, TX, United States)
Dukes, C.
(Virginia Univ. Charlottesville, VA, United States)
Keller, L. P.
(NASA Johnson Space Center Houston, TX, United States)
Baragiola, R.
(Virginia Univ. Charlottesville, VA, United States)
Date Acquired
August 26, 2013
Publication Date
August 12, 2012
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-CN-26544
Meeting Information
Meeting: 75th Annual Meeting of the Meteoritical Society
Location: Caims
Country: Australia
Start Date: August 12, 2012
End Date: August 17, 2012
Sponsors: Meteoritical Society
Distribution Limits
Public
Copyright
Public Use Permitted.
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