%0 Journal Article
%T 拉萨地块和羌塘地块多个二叠纪基性岩及一个古特提斯海山的初步古地磁结果:对模拟东冈瓦纳晚古生代裂解的暗示
%A Diane CHUNG
%A Jason R. ALI
%A Jonathan C. AITCHISON
%J 地球学报
%D 2012
%R 10.3975/cagsb.2012.s1.05
%X Detachmentofthesliver-likeCimmerianterranefromeasternGondwanaintheEarlyPermiantriggeredmaficvolcanisminmanypartsoftheriftzone.Tounderstandthistectonicepisodewehavecarriedoutpaleomagneticinvestigationsonmaficvolcanicfor-mationsthatwereeruptedonkeyterranesthatnowformpartofTibet.Specifically,wewillpresentdatafromsectionsnearLhasaCity(centralLhasablock)andTuotuohe(centralQiangtangBlock)aswellasnearGyanyima(Paleotethyansea-mount)thatwasemplacedontothefloorofPalaeotethysduringtheLatePermian.Paleomagneticplotsfromeachlocationwillbeusedfortectoniccalculations.Ournewdatawillbeusedtoevaluateregionalscalemodelscon-cernedwithhowtheCimmerianterranesinsouthernandSEAsia(fromIran-Tibet-SWChina-Myanmar-Thailand-Sumatra)formerlyabuttedeasternGond-wana.
%K Paleomagnetism
%K maficunits
%K Permian
%K LhasaBlock
%K QiangtangBlock
%K Gyanyima
%U http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=2012s105&flag=1