占王忠, 彭清华, 陈文彬. 羌塘盆地冬曲地区上三叠统巴贡组古网迹的发现及古环境意义[J]. 地质通报, 2019, 38(2-3): 208-212.
    引用本文: 占王忠, 彭清华, 陈文彬. 羌塘盆地冬曲地区上三叠统巴贡组古网迹的发现及古环境意义[J]. 地质通报, 2019, 38(2-3): 208-212.
    ZHAN Wangzhong, PENG Qinghua, CHEN Wenbin. The discovery of Paleodictyon in Upper Triassic Bagong Formation in Dongqu area of Qiangtang basin and its palaeoenvironment significance[J]. Geological Bulletin of China, 2019, 38(2-3): 208-212.
    Citation: ZHAN Wangzhong, PENG Qinghua, CHEN Wenbin. The discovery of Paleodictyon in Upper Triassic Bagong Formation in Dongqu area of Qiangtang basin and its palaeoenvironment significance[J]. Geological Bulletin of China, 2019, 38(2-3): 208-212.

    羌塘盆地冬曲地区上三叠统巴贡组古网迹的发现及古环境意义

    The discovery of Paleodictyon in Upper Triassic Bagong Formation in Dongqu area of Qiangtang basin and its palaeoenvironment significance

    • 摘要: 在羌塘盆地东部冬曲地区上三叠统巴贡组地层中发现有Paleodictyon古网迹遗迹化石,通过观测研究确认属于巢网迹遗迹亚属P.(Glenodictyon) Vander Mark,与国内外相关资料对比后认为,羌塘盆地东部冬曲地区在晚三叠世属于深海、贫氧、高盐度的复理石沉积环境,对羌塘盆地古环境分析及岩相古地理格局具有重要的指导意义。

       

      Abstract: Paleodictyon trace fossils were found in Upper Triassic Bagong Formation in Dongqu area of Qiangtang basin. The authors confirmed that they belong to P.(Glenodictyon) Vander Mark. A comparison with relevant information available shows that the palaeoenvironment of Dongqu area in east Qiangtang basin belonged to deep-sea, low oxygen and high salinity flysch sedimentary environment in Late Triassic. The results obtained by the authors are of significance for environmental analysis and lithofacies paleogeographic pattern study.

       

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