%0 Journal Article
%T Geochronology of source materials from high-pressure and ultrahigh-pressure metamorphic rocks in Jurassic sedimentary rocks of Hefei Basin<br>Geochronology of Source materials from high-pressure and ultrahigh-pressure metamorphic rocks in Jurassic sedimentary rocks of Hefei Basin
%A Renwei Li
%A Haiqing Sang
%A Renhu Zhang
%A Zhuyin Chu
%A Shuangyin Li
%A Fuquan Jin
%A Maosheng Jiang
%A <br>LI Renwei
%A SANG Haiqing
%A ZHANG Renhu
%A CHU Zhuyin
%A LI Shuangyin
%A JIN Fuquan & JIANG Maosheng . Institute of Geology and Geophysics
%A Chinese Academy of Sciences
%A Beijing
%A China
%A .
%J 科学通报(英文版)
%D 2003
%I 
%X In this report, it is proven through stable isotopic geochronological study that for the Jurassic sedimentary rocks in the Dushan area of Anhui Province, the source materials derived from high-pressure and ultrahigh-pressure metamorphic rocks are the products of subduction and exhumation of the Yangtze plate under the North China plate during the Triassic period. The cobble of high-pressure or ultrahigh-pressure metamorphic rock in the Fenghuangtai Formation of Hefei Basin has Rb-Sr isotopic isochron age of phengite, apatite and whole rock, 232.1±2.1 Ma (MSWD = 0.59). Plateau ages of 40Ar/39Ar age spectra of detrital phengites in the Sanjianpu and Fenghuangtai formations are concordant, and they are 216.5±0.6 Ma and 217.4±1.3 Ma, respectively.
%K Dabie orogenesis
%K Hefei Basin
%K source materials
%K high-pressure and ultrahigh-pressure metamorphic rocks
%K isotopic ages<br>合肥盆地
%K 侏罗纪沉积岩
%K 高压超高压变质岩
%K 源物质
%K 地质年代
%K 大别造山作用
%K 同位素测年
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=CE9901C10E8A77C59A6C4B541711E488&yid=D43C4A19B2EE3C0A&vid=B6DA1AC076E37400&iid=B31275AF3241DB2D&sid=10A39635766FF5D0&eid=44E78A5D1B37D836&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=4&reference_num=26