| タイトル | Definitive Mineralogical Analysis of Mars Analog Rocks Using the CheMin XRD/XRF Instrument |
| 著者（英） | Collins, S.; Bish, D. L.; Feldman, S.; Vaniman, D. T.; Sarrazin, P.; Chipera, S. J.; Blake, D. F. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 2004-01-01
2004 |
| 言語 | eng |
| 内容記述 | Mineral identification is a critical component of Mars Astrobiological missions. Chemical or elemental data alone are not definitive because a single elemental or chemical composition or even a single bonding type can represent a range of substances or mineral assemblages. Minerals are defined as unique structural and compositional phases that occur naturally. There are about 15,000 minerals that have been described on Earth, all uniquely identifiable via diffraction methods. There are likely many minerals yet undiscovered on Earth, and likewise on Mars. If an unknown phase is identified on Mars, it can be fully characterized by structural (X-ray Diffraction, XRD) and elemental analysis (X-ray Fluorescence, XRF) without recourse to other data because XRD relies on the principles of atomic arrangement for its determinations. XRD is the principal means of identification and characterization of minerals on Earth. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
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