The Influence of Abrasion on Martian Dust Grains: Evidence from a Study of Antigorite GrainsGrinding was shown to greatly affect the structure and a number of properties of antigorite grains in a study by Drief and Nieto. Grinding is likely to influence the structure of most clay mineral grains and has been shown recently to influence the structure of kaolinite. The antigorite structure includes curved waves of layered silicate as shown by D dony et al.. Our study was performed in order to characterize in detail changes in the mineral grains resulting from grinding and to assess the influence of physical processes on clay minerals on the surface of Mars. This project includes a combination of SEM, reflectance spectroscopy and Moessbauer spectroscopy.
Bishop, Janice L. (Search for Extraterrestrial Intelligence Inst. Moffett Field, CA, United States)
Drief, Ahmed (California Univ. Davis, CA, United States)
Dyar, M. Darby (Mount Holyoke Coll. South Hadley, MA, United States)