<SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: black; FONT-FAMILY: ’Times New Roman’; mso-font-kerning: 18.0pt; mso-bidi-font-weight: bold; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">Heavy Mineral Assemblages and Provenance Analysis of the Upper Triassic in <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:City w:st="on">Renbu Area</st1:City>, <st1:State w:st="on">Southern</st1:State> <st1:country-region w:st="on">Tibet</st1:country-region>, <st1:place w:st="on"><st1:country-region w:st="on">China</st1:country-region></st1:place></SPAN>

Heavy Mineral Assemblages and Provenance Analysis of the Upper Triassic in Renbu Area, Southern Tibet,

China

详细信息

责任者：Zeng Qinggao (Guangzhou Geochemistry Institute ; Chinese Academy of Sciences ; Guangzhou 510640 ; China) ; Li Xianghui
刊名：Geological Bulletin of China
出版年：2009
卷期：28（1）
关键词：物源区 ; provenance ; 西藏 ; Tibet
页码：p.38-44
图表：4 illus., 2 tables, 25 refs.
分类号：0803
issnNo：ISSN1671-2552
isbnNo：CN11-4648/P

摘要

Provenance of the Upper Triassic Langjiexue Group and Nieru Formation in Renbu area, southern

Tibet

was analyzed by heavy mineral association and index methods. The results indicate that common heavy minerals found in the Upper Triassic are mainly zircon, apatite, rutile, anatase, and tourmalin, both of the ZTR and ATi indexes from the mineral association are high, the MZi index is low but can be observed frequently, and the GZi index is low and sometimes zero, for Langjiexue Group, ZTR is inversely proportional to ATi indexes, but it is independent from the Nieru Formation sandstones.

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