Provenance Analysis of Chang 8 and Chang 6 Members of Yanchang Formation in Fuxian Exploration Area of space prefix = st1 ns = &quot;urn:schemas-microsoft-com:office:smarttags&quot; /><st1:place w:st=&quot;on&quot;><st1:PlaceName w:st=&quot;on&quot;>Ordosst1:PlaceName> <st1:PlaceType w:st=&quot;on&quot;>Basin— st1:PlaceType>st1:place>from Lithogeochemistry and Heavy Minerals Analysis

详细信息   

• 责任者：Deng Kun (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhang Shaonan
• 刊名：Journal of Guilin University of Technology
• 出版年：2012
• 卷期：32(1)
• 关键词：油气勘探 ; petroleum exploration ; 物源分析 ; provenance analysis ; 鄂尔多斯盆地 ; Ordos Basin
• 页码：p.29-35
• 图表：13 illus., 18 refs.
• 分类号：1003
• issnNo：ISSN1674-9057
• isbnNo：CN45-1375/N

摘要

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style=&quot;MARGIN: 0cm 0cm 0pt&quot; class=MsoNormal>Oil exploration in the southeastern space prefix = st1 ns = &quot;urn:schemas-microsoft-com:office:smarttags&quot; /><st1:place w:st=&quot;on&quot;><st1:PlaceName w:st=&quot;on&quot;>Ordosst1:PlaceName> <st1:PlaceType w:st=&quot;on&quot;>Basinst1:PlaceType>st1:place> in recent years made little progress due to ambiguous understanding of the primary provenance of Yanchang Formation. The main types of clastic sandstones in Yanchang Formation are arkose and lithic arkose distributed in Chang 8 and Chang 6 with 20%~65% feldspar. In comparison with crystalline basement, it suggests that Archean igneous rocks in <st1:place w:st=&quot;on&quot;><st1:PlaceName w:st=&quot;on&quot;>Luliangst1:PlaceName> <st1:PlaceType w:st=&quot;on&quot;>Mountainsst1:PlaceType>st1:place> have no genetic link to Yanchang Formation. The primary provenance of Yanchang Formation derived from granulite-khondalite series from Wulashan Group in Yinshan paleo-land in east-north, rather than from Qinling Group and Kuanping Group in northern <st1:place w:st=&quot;on&quot;><st1:PlaceName w:st=&quot;on&quot;>Qinlingst1:PlaceName> <st1:PlaceType w:st=&quot;on&quot;>Mountainsst1:PlaceType>st1:place>.