Inspiration From Study of Antarctic Meteorites(Ⅱ)——Discovery of the First EL3 Chondrite  

作　　者：林杨挺 欧阳自远 王道德 H.J.Nagel A.ElGoresy L.L.Lundberger 

机构地区：[1]Institute of Geochemistry,Academia Sinica,Guiyang 550002.PRC [2]Max-Planck-Institut [3]McDonnell Centre for the Space Sciences,Washington University,St.Louis,USA

出　　处：《Chinese Science Bulletin》1993年第15期1277-1279,共3页

摘　　要：Chondrites can be classified into different types from 1 to 6 with increasing degree ofthermometamorphism.EH-chondrites fall between types 3 and 5 with lack of type 6,while all of the 17 EL chondrites were reported to be of type 6.Such distribution of thechemical-petrographic types of enstatite chondrites was used as a key argument for thatthese two chondrites came from one single parent body.Peckling Peak A80259 was re-ported as the first EL5 chondrite,however,solid solution of FeS-MgS-MnS system inthis chondrite exists as niningerite,a distinctive phase of EH chondrites.In addition,

关 键 词：ENSTATITE CHONDRITE Antarctic METEORITE PETROGRAPHY and mineralogy PARENT bodies thermometamorphism 

分 类 号：N[自然科学总论]