Persistent Identifier
|
hdl:2014/43337 |
Publication Date
|
2013-03-18 |
Title
| Assessments of potential rock coatings at Rocknest, Gale Crater with ChemCam. |
Author
| Blanery, D. L. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Anderson, R. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Berger, G. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Bridges, J. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Bridges, N. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Clark, B. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Clegg, S. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Ehlman, B. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Goetz, W. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
King, P. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Lanza, N. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Mangold, N. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Meslin, P.-Y. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.)
Newson, H. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.) |
Point of Contact
|
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Blanery, D. L. |
Description
| Many locations on Mars have low color contrast between the rocks and soils due to the rocks being “dusty”—basically having a surface that is spectrally similar to Martian soil. In general this has been interpreted as soil and/or dust clinging to the rock though either mechanical or electrostic processes. However, given the apparent mobility of thin films of water forming cemented soils on Mars and at Gale Crater [e.g. 1,2], the possibility exists that some of these “dusty” surfaces may actually be coatings formed by thin films of water locally mobilizing soil/air fall material at the rock interface. This type of coating was observed by Spirit during an investigation of the rock Mazatzal which showed enhanced salts above “normal soil” [3] and an enhancement of nano phase iron oxide that was ~ 10 μm thick [4]. We decided to use ChemCam to investigate the possibility of similar rock coatings forming at the Rocknest site at Gale Crater. |
Subject
| Other |
Production Date
| 2013-03-18 |