%0 Journal Article
%T ConstraintsofU-PbzircondatingontheevolutionoftheNan-UttaraditsuturezoneinnorthernThailand
%A YANG Wen-qiang
%A FENG Qing-lai
%A SHEN Shang-yue
%A Chongpan CHONGLAKMANI
%J µØÇòѧ±¨
%D 2009
%R 10.3975/cagsb.2009.s1.34
%X Nan-UttaraditsuturezoneinnorthernThailandisanarrowN-StrendinganddiscontinuousophiolitebeltalongtheNanRiver(BarrandMacDonald,1987).ItwasinterpretedasthePaleo-TethysoceanicremnantsthatseparateShan-Thai(Sibumasu)terraneandIndo-chinaterrane(Bunopas,1981;Hada,1999),andrein-terpretedastheboundaryofSukhothai(orSimao)terraneandtheIndochinaterranethatrepresentingasegmentoftheback-arcbasin(BarrandMacDonald,1991;UenoandHisada,2001;Metcalfe,2006;Ferrarietal.,2008;SoneandMetcalfe,2008).ThiszoneisdominatedbyCarboniferoustoPermianPhaSomMetamorphicComplex(HessandKoch,1975).ThePhaSomMetamorphicComplexconsistsofseveraltectonostratigraphicslicesofvolcanicrocks,schists,meta-greywacke,serpentiniteandbeddedchert.AnditisinfaultcontactwithPakPatvolcanicrocks.BothofPhaSomMetamorphicComplexandPakPatvolcanicrocksarecoveredbytheUpperTriassicandtheJuras-sicredsandstoneswithangularunconformity.Previ-ousstudiesmainlyfocusedontheamalgamationepi-sodesoftheSukhothaiterraneandIndochinaterrane.TheLateCarboniferoustoEarlyPermianageoftheopeningofthebasinwasproposedbysomeauthors(SingharajwarapanandBerry,2000;Metcalfe,2006;Ferrarietal.,2008)onthebasisoftheregionalstrati-graphy,differentdatingofcherts,andschistsfromthePhaSomMetamorphicComplex.
%K Nan-Uttaraditsuture
%K ophiolitem¨¦lange
%K zircon
%K U-Pbdating
%U http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=2009S134&flag=1