极地研究Issue(4)：378-385,8.DOI:10.3724/SP.J.1084.2013.00378
南极格罗夫山碳质球粒陨石的研究与展望
THE STUDY AND EXPECTATIONS FOR FINDING CARBONACEOUS CHONDRITES IN THE GROVE MOUNTAINS, ANTARCTICA
摘要
Abstract
The petrography and mineral chemistry of three carbonaceous chondrites (GRV 020025, 021579 and 022459) collected from the Grove Mountains ( GRV) , Antarctica, are presented here .All three chondrites are unequilibrat-ed.The modal abundance ratios of matrix/chondrule are 2.8 (GRV 020025), 1.2 (GRV 021579) and 1 (GRV 022459).GRV 022459 has the largest chondrules (0.6-2.0 mm) among these meteorites.A total 27 Ca-, Al-rich inclusions have been found in thin sections of the three chondrites .Except for one spinel-spherule in each GRV 020025 and 021579, all other inclusions can be classified either as Type A ( or Type A-like) or spinel-pyrox-ene-rich inclusions .Most of the inclusions are intensively altered , with abundant phyllosilicates in the inclusions from GRV 020025 and FeO-enrichment of the spinel in GRV 022459 .Finally , we look forward to a stepped study of Antarctica carbonaceous chondrites .关键词
矿物岩石学特征/富Ca, Al包体/碳质球粒陨石/南极Key words
petrography and mineral chemistry/Ca-,Al-rich inclusions/carbonaceous chondrites/Antarctica引用本文复制引用
戴德求,陈新跃,杨荣丰..南极格罗夫山碳质球粒陨石的研究与展望[J].极地研究,2013,(4):378-385,8.基金项目
国家自然科学基金（41103032）、环境地球化学国家重点实验室开放基金（SKLE1106）、中国博士后基金（2011M501423）和南、北极生物和地质标本标准化整理与共享试点（2005DKA21406）资助 （）
