%0 Journal Article
%T 泰国难府-程逸缝合带中灰岩块的虫筳类生物地层学
%A Thasinee CHAROENTITIRAT
%A Sarawute CHANTRAPRASERT
%J 地球学报
%D 2012
%R 10.3975/cagsb.2012.s1.33
%X Thestudyarea,NanProvince,northernThailandisgeotectonicallysituatedwithintheNan-UttaraditSuture,theonceback-arcbasinbetweentheSukhothaiZoneandIndochinaBlock.PermianFusulinaceanfaunafromlimestoneblockswithinthesuturehasbeeninvestigatedandtheNanareahasbeenmappedindetail.Thesemayprovidetheusefulinformationforunderstandingthefaunalassemblageandoverallge-ometryofstratigraphicsuccessionsinthebasin.Thestratawereintenselyfoldedandthrust.ScatteredPer-mianlimestonesfoundinNanareaareblockswithinshaleinterbeddedwithtuffaceousrock.Thecontactbetweenthisunitandtheadjacentunits,thestronglyfoliatedshaleandtuffaceoussedimentarystratathataremildlymetamorphosedandgivingphyllitictex-tures,hasbeeninterpretedasawest-dippingnormalfault,namelythePhaSingFault.Thisfaultrunspar-alleltotheHighwayno.1080(Nan-ThaWangPha).MiddleandearlyLatePermianfusulinaceanfaunafoundintheNanareacontainsNeoschwagerina,Pseudodoliolina,Colania,Lepidolina,andColaniella.Additionally,lateEarlyPermianfusulinaceanandMiddleTriassicradiolarianfaunahavebeenreportedinthisarea(e.g.,Fontaine,2002;Saesaengseerungetal.2008).ThesepaleontologicaldatashowtheexistenceofNanBack-arcBasinduringlateEarlyPermian(Artin-skian)toMiddleTriassic.Moreover,thesimilarityoffusulinaceanassemblageyieldingPermianlimestoneblocksoftheNanBack-arcBasinandtheonesoftheIndochinaBlockhasbeeninterpretedthatthePermianlimestoneblocksintheNanBack-arcBasinwerepartofthecontinentalshelfwithintheIndochinaBlock.
%K Fusulinaceanbiostratigraphy
%K Permian
%K limestoneblock
%K Nan
%K Thailand
%U http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=2012s133&flag=1