Weathering of some Antarctic meteorites: Infrared spectroscopy

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概要

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• We studied the degree of weathering of some Antarctic meteorites using the integrated intensity of absorption bands near 3μm to enlarge the data base of the degree of weathering. There is no clear correlation between the integrated intensity and the degree of weathering on the A-B-C scale. A rough correlation can be seen between the integrated intensity of absorption bands near 3μm and the total amount of H_2O in a meteorite analyzed by a standard wet chemical analysis method. Some Yamato meteorites measured show weaker integrated intensities than the Allan Hills meteorites measured. Our method to determine the degree of weathering may be useful for choosing less weathered meteorites from among the Antarctic meteorite collection.

• 国立極地研究所の論文

著者

• KOJIMA Hideyasu

  National Institute of Polar Research

• Yanai Keizo

  National Institute of Polar Research

• Yanai K

  Iwate Univ. Morioka

• Miyamoto Masamichi

  College of Arts and Sciences, University of Tokyo

• Miyamoto M

  Mineralogical Institute Graduate School Of Science University Of Tokyo

• Miyamoto Masamichi

  College Of Arts And Sciences University Of Tokyo

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