Japan-Korea Joint Research on Antarctic Meteorites

自1969年以来，日本已经从南极洲收集了大约9000块陨石，日本的陨石研究在过去20年中变得非常活跃。相比之下，韩国的陨石很少，陨石研究在韩国并不活跃。不过，韩国有一个计划，将来要从南极洲收集很多陨石，而韩国方面的科学家们非常渴望建立一个韩日联合研究南极陨石的项目，这项研究的目标是日韩联合，研究日本南极陨石，以促进韩国和日本的陨石研究活动，并澄清陨石母体的形成和演变，原行星。该项目的首席研究员Y.Ikeda教授于1994年9月24日至10月11日访问了首尔国立大学，安排了日韩联合研究，另一位日本研究员M.Kimura副教授，还访问了首尔国立大学和韩国海洋研究开发院，对南极陨石进行矿物学研究从1995年3月2日到3月9日另一方面，韩方项目首席研究员M.S.Lee教授于1994年12月23日至1995年1月22日访问了茨木大学、东京大学和国家极地研究所（东京），以促进日韩联合研究。使用电子探针微量分析仪。其中Yamato-8449陨石是一种罕见的CR球粒陨石，对其球粒玻璃的水化作用进行了研究，认为其水化作用发生在吸积到母体上之前的早期太阳星云中。Yamato-75011陨石是一种独特的多晶钙榴石，岩石学研究表明，它产生于HED母体的表面区域，可能是4号小行星灶神星。

Japan has collected about nine thousands of meteorites from Antarctica since 1969, and Japanese meteorite research has become active last twenty years. In contrast, Korea has few meteorites, and the meteorite research was not so active in Korea. Korea, however, has a plan to collect many meteorites from Antarctica in future, and Korean side scientists were very eager about establishing a Korea-Japan joint research on Antarctic meteorites.The objectives of this study were Japan-Korea joint-research on Japanese Antarctic meteorites in order to promote the activity of meteorite research in both Korea and Japan and to clarify the formation and evolution of meteorite parent bodies and protoplanets.The head investigator of this project, Prof.Y.Ikeda, visited Seoul National University to make an arrangement of the Japan-Korea joint research from September 24,1994 to October 11, and another Japanese investigator, Associate Prof.M.Kimura, also visited Seoul National University and Korean Ocean Research and Development Institute to carry out the mineralogical study on Antarctic meteorites from March 2,1995 to March 9. On the other hand, the head invetigator of the Korean side project, Prof.M.S.Lee, visited Ibaraki Unversiry, Tokyo University, and National Institute of Polar Research (Tokyo) to promote the Japan-Korea joint research from December 23,1994 to January 22,1995.We carried out the mineralogical and petrological studies on unequilibrated and equilibrated chondites and HED meteorites, using an electron-probe microanalyzer. Among them, the Yamato-8449 meteroite was a rare CR chondrite, and we studied the hydration of chondrule glass in the meteorite and concluded that the hydration took place in the early solar nebula prior to the accretion on to the parent body. The Yamato-75011 meteorite is a unique polymict eucrite, and the petrological study revealed that it was produced on the surface region of the HED parent body, probably No.4 asteroid Vesta.