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首页> 外文学位 >Lower Permian (Asselian-Sakmarian) stratigraphy and biostratigraphy (Ammonoid and Conodont) of Novogafarovo and Kondurovsky, southern Ural Mountains, Russia.
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Lower Permian (Asselian-Sakmarian) stratigraphy and biostratigraphy (Ammonoid and Conodont) of Novogafarovo and Kondurovsky, southern Ural Mountains, Russia.

机译：俄罗斯乌拉尔山脉南部的Novogafarovo和Kondurovsky的下二叠纪（Asselian-Sakmarian）地层和生物地层（弹药和牙形体）。

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摘要

Detailed description and analysis of the lithostratigraphy, and ammonoid and conodont biostratigraphy of the upper Carboniferous - Early Permian Novogafarovo and Kondurovsky stratigraphic sections, southern Ural Mountains, Russia has provided a better understanding of the tectonostratigraphic history of the Pre-Uralian Foredeep.; The Pre-Uralian Foredeep was formed during the Middle Carboniferous as the result of Late Paleozoic orogenic events during the suturing of Pangaea and persisted as a structurally complex sedimentary basin through the Permian. Late Carboniferous to Early Permian foredeep sediments accumulated on a mixed siliciclastic-carbonate ramp that sloped westward into a deeper water basin, bordered by the Uralian orogen on the east and shallow water carbonate platform of the Russian Platform to the west. Late Carboniferous to Early Permian strata at Novogafarovo and Kondurovsky reflect deposition on this storm dominated mixed siliciclastic-carbonate outer to middle ramp.; This study has furnished important biostratigraphic data for establishing the Lower Permian (Cisuralian) global geologic time scale, in particular providing crucial supporting data for Kondurovsky as the potential stratotype for the base of the Sakmarian Stage. Discovery and identification of a diverse streptognathodid conodont assemblage provides the data to precisely define the basal Sakmarian boundary. The ammonoid biostratigraphic data supports the placement of this boundary.
机译：;对俄罗斯南部乌拉尔山脉石炭纪上部-早二叠纪Novogafarovo和Kondurovsky地层剖面的岩相地层学，铵盐和牙形生物生物地层的详细描述和分析，使人们对乌拉里前Foredeep的构造地层史有了更好的了解。在Pangea的缝合过程中，由于晚古生代造山活动的结果，在中石炭纪形成了Uralian前期深层构造，并一直作为一个结构复杂的沉积盆地贯穿二叠纪。晚石炭纪至早二叠纪前缘深部沉积物聚集在硅质-碳酸盐混合斜坡上，向西倾斜至较深的水盆，东部为乌拉尔造山带，西部为俄罗斯平台的浅水碳酸盐岩平台。 ； Novogafarovo和Kondurovsky的晚石炭世至早二叠世地层反映了这场风暴主导的沉积，这种沉积以外斜向中斜坡为主。这项研究为建立下二叠纪（西西里人）的全球地质时间尺度提供了重要的生物地层学数据，特别是为康杜罗夫斯基提供了重要的支持数据，作为萨克马期阶段的基础。发现和鉴定多种链霉菌牙形牙形体组合可提供数据，以精确定义基底萨克马里边界。氨类生物地层学数据支持该边界的放置。

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  • 作者

    Schiappa, Tamra Andrake.;

  • 作者单位

    University of Idaho.;

  • 授予单位 University of Idaho.;
  • 学科 Geology.; Paleontology.
  • 学位 Ph.D.
  • 年度 1999
  • 页码 295 p.
  • 总页数 295
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;古生物学;
  • 关键词

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