%0 Journal Article %T 泰国东南部Rayong省Klaeng地区的中?晚泥盆世放射虫 %A Yoshihito KAMATA %A Miyako KATO %A Katsumi UENO %A Akira MIYAHIGASHI %A Thasinee CHAROENTITIRAT %A Apsorn SARDSUD %J 地球学报 %D 2012 %R 10.3975/cagsb.2012.s1.17 %X TectonicsubdivisionofmainlandThailandhasbeendiscussedbymeansofPaleozoicandMesozoicstratigraphy,micropaleontologyrepresentedbyfo-raminiferalandradiolarianbiostratigraphyandpaleo-biogeography,tectonicsettingsofgranitoids,andul-tramaficrocksthataredistinctiveofsuturelines.Re-cently,Ueno(2002)andUenoandCharoentitilat(2011)proposedanewtectonicschemeofmainlandThailandanddivideditintothreegeotectonicunits:theSibu-masuBlock,SukhothaiZone,andIndochinaBlockfromwesttoeast,whichareseparatedbytheMaeYuanFault,theChiangRaiTectonicLine,andtheNan–UttaraditSuture,respectively.InNorthernThai-land,moreover,thepeculiarInthanonZoneisrecog-nizedintheeasternpartoftheSibumasuBlock,wherePaleo-Tethyanoceanicrocksarewidelydistributedastectonicslices.ThesegeotectonicsubdivisionsinNorthernThailandarerelativelyclear.However,thetectonicsubdivisionsofCentralandSoutheastThai-landhavenotbeenwelldocumentedandarestillcon-troversialbecausethereisshortofinformationaboutbasementrocksinthoseareas.Inthiscircumstance,wehaveexaminedPaleozoictoMesozoicstratigraphy,lithology,andradiolarianagesofsiliceousrocksdis-tributedinSoutheastThailandtoclarifythegeotec-tonicbelongingsofthisareaandthesouthernexten-sionsofgeotectonicunitsconsistingofNorthernThailand.Inthecourseofthisresearch,wecouldob-tainMiddletoLateDevonianradiolariansfromwell-beddedsiliceousrocksdistributedinsouthwestofKlaeng,RayongProvince.Inthisstudy,wereportlithologyandageoftheradiolaria-bearingrocksanddiscusstheirstratigraphyandgeologicalcorrelationnearbytheKlaengregion. %K Radiolarian %K Klaeng %K SoutheastThailand %K Devonian %U http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=2012s117&flag=1