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  • 标题:The Boquillas Formation of the Big Bend National Park, Texas, USA, a reference Cenomanian through Santonian (Upper Cretaceous) carbonate succession at the southern end of the Western Interior Seaway
  • 本地全文:下载
  • 作者:Dee Ann Cooper ; Roger W Cooper ; James B Stevens
  • 期刊名称:Acta geologica Polonica
  • 印刷版ISSN:0001-5709
  • 出版年度:2017
  • 卷号:67
  • 期号:4
  • 页码:547-565
  • 语种:English
  • 出版社:Institute of Geology, University of Warsaw
  • 摘要:The upper lower Cenomanian through middle Santonian (Upper Cretaceous) of the Boquillas Formation in the Big Bend Region of Trans-Pecos Texas consists of a marine carbonate succession deposited at the southern end of the Western Interior Seaway. The Boquillas Formation, subdivided into the lower, c. 78 m thick limestone-shale Ernst Member, and the upper, c. 132 m thick  limestone/chalk/marl San Vicente Member, was deposited in a shallow shelf open marine environment at the junction between the Western Interior Seaway and the western margins of the Tethys Basin. Biogeographically, the area was closely tied with the southern Western Interior Seaway. The richly fossiliferous upper Turonian, Coniacian and lower Santonian parts of the Boquillas Formation are particularly promising for multistratigraphic studies.
  • 关键词:Boquillas Formation;Upper Cretaceous;US Western Interior Seaway;Lithostratigraphy;Biostratigraphy;Paleoenvironment
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