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CheMin Instrument

Friday, October 28, 2016 23:11
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All articles by Wretch Fossil are here: http://www.wretch.cc/blog/lin440315&category_id=0

Last updated on Oct. 24, 2016
Rocks and sands on Mars contain various organic and inorganic minerals. Mars rover Curiosity uses CheMin instrument to analyze only inorganic minerals in sands and rocks. The particles analyzed by the instrument are smaller than 1 mm across. Sometimes the instrument analyzes only those particles that are smaller than 0.15 mm (note 1). In such cases. the instrument may not detect minerals in ooids, as ooids are mostly 0.25 mm to 1 mm across.

Note 1: For example: “On the second sol, a fine-grained portion of sand (smaller than 150 microns) will be delivered to CheMin for analysis.” Quoted from http://astrogeology.usgs.gov/news/astrogeology/sols-1225-1227-analyzing-dump-piles

Wretch Fossil’s website:http://wretchfossil.blogspot.com/

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