Temporal and Spatial Distribution of the Late Devonian (Famennian) Strata in the Northwestern Border of the Junggar Basin, Xinjiang, Northwestern China

Temporal and Spatial Distribution of the Late Devonian (Famennian) Strata in the Northwestern Border of the Junggar Basin, Xinjiang, Northwestern China
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This work was financially supported by the National Natural Science Foundation of China (Grants 41502015 and 41290260). Prof. Hou Hongfei (Chinese Academy of Geological Sciences) and Prof. Liao Weihua (Nanjing Institute of Geology and Paleontology) deserve special thanks for their guidance in the field work and constructive discussion and suggestion during preparation of the manuscript. Profs Guo Zhaojie and Han Baofu (PKU) are thanked for discussion about some of the igneous and pyroclastic rocks. A few faculty members and graduate students of Peking University (including Xue Jinzhuang and Wang Huanhuan) also are thanked for participating in the field work. The initial work for this paper was supported by China Petrochemical Corporation (Sinopec). We are also grateful to anonymous reviewers and editors who made a number of suggestions for improvement of the Chinese version manuscript.

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    Abstract:

    The base of the Saerba Member (Mbr) of the Hongguleleng Formation (Fm.) probably lies in the Famennian Palmatolepis crepida Zone; the Longkou Mbr is probably a sedimentary wedge that thins out northwards; the Duguer Mbr has an approximate age from the upper part of the Pa. marginifera Zone or the Lower Pa. rugosa trachytera Zone through the top of the Pa. perlobata postera Zone; the Wulan Mbr has an age approximately corresponding to the whole Pa. gracilis expansa Zone. In the Bulongguoer section, the Lower Mbr of the Hongguleleng Fm. corresponds to Famennian Pa. crepida Zone through Pa. marginifera Zone; the Middle Mbr probably ranges from the Pa. r. trachytera Zone through the Pa. g. expansa Zone. The basal Namu Mbr of the Heishantou Fm. is probably the product during and after the Hangenberg Event in the upper part of the Siphonodella praesulcata Zone, which is still within the Devonian. In this context, the underlying Chasi Mbr may approximately correspond to the lower part of the S. praesulcata Zone (before the Hangenberg Event). Lateral distribution of strata indicates that the Upper Devonian in the Gennaren and Saerba areas each constitutes a structure of syncline, which differs from the previous recognition of a monocline structure.

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MA Xueping, ZHANG Meiqiong, ZONG Pu, ZHANG Yubo, Lü Dan.2017. Temporal and Spatial Distribution of the Late Devonian (Famennian) Strata in the Northwestern Border of the Junggar Basin, Xinjiang, Northwestern China[J]. ACTA GEOLOGICA SINICA(English edition),91(4):1413~1437

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  • 收稿日期:2015-04-24
  • 最后修改日期:2015-08-14
  • 在线发布日期: 2017-08-18
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