*Matthew Izawa¹、Sean Yokoyama²、Shigeru Yamashita¹、Takuo Okuchi¹、Takuya Moriguti¹、Andrew P Jephcoat¹、Vishnu Reddy³、Allison M McGraw³、Lucille Le Corre⁴、Edward A Cloutis⁵ (1.Institute for Planetary Materials, Okayama University, 827 Yamada, Misasa, Tottori 682-0193, Japan、2.University of Toronto, 27 King's College Cir, Toronto, ON M5S, Canada 、3.Lunar and Planetary Laboratory, University of Arizona, 1629 E University Blvd Tucson AZ 85721-0092 USA、4.Planetary Science Institute, 1700 East Fort Lowell, Suite 106, Tucson, AZ, USA、5.Center for Terrestrial and Planetary Exploration, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B 2E9 Canada )