Recently Ratified and Proposed Cambrian Global Standard Stratotype-section and Points
基金项目:

This paper is a contribution to the project Research on standard sections and some GSSPs in China supported by the Ministry of Science and Technology of China (2006FY120300), and the State Key Laboratory of Palaeobiology and Stratigraphy (20091103). The earlier research was funded by the National Natural Science Foundation of China (40072003, 40023002, 40332018, 40672023, 40602002).


Recently Ratified and Proposed Cambrian Global Standard Stratotype-section and Points
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  • PENG Shanchi

    PENG Shanchi

    1 State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China; 2 Henan Institute of Geological Survey, Zhengzhou 450007, China; 3 No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources, Jishou 416007, China; 4 Geological Surveying Institution of Zhejiang Province, Xiaoshan 311203, China
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  • ZHU Xuejian

    ZHU Xuejian

    1 State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China; 2 Henan Institute of Geological Survey, Zhengzhou 450007, China; 3 No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources, Jishou 416007, China; 4 Geological Surveying Institution of Zhejiang Province, Xiaoshan 311203, China
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  • ZUO Jinxun

    ZUO Jinxun

    1 State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China; 2 Henan Institute of Geological Survey, Zhengzhou 450007, China; 3 No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources, Jishou 416007, China; 4 Geological Surveying Institution of Zhejiang Province, Xiaoshan 311203, China
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  • LIN Huanling

    LIN Huanling

    1 State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China; 2 Henan Institute of Geological Survey, Zhengzhou 450007, China; 3 No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources, Jishou 416007, China; 4 Geological Surveying Institution of Zhejiang Province, Xiaoshan 311203, China
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  • CHEN Yong’an

    CHEN Yong’an

    1 State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China; 2 Henan Institute of Geological Survey, Zhengzhou 450007, China; 3 No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources, Jishou 416007, China; 4 Geological Surveying Institution of Zhejiang Province, Xiaoshan 311203, China
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  • WANG Longwu

    WANG Longwu

    1 State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China; 2 Henan Institute of Geological Survey, Zhengzhou 450007, China; 3 No. 405 Geological Team of Hunan Bureau of Geology and Mineral Resources, Jishou 416007, China; 4 Geological Surveying Institution of Zhejiang Province, Xiaoshan 311203, China
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    摘要:

    This paper briefly summarizes an officially ratified Global Standard Stratotype-section and Point (GSSP) and a proposed GSSP for global stages of the Cambrian System. The Luoyixi section near Luoyixi town, Guzhang, northwestern Hunan is ratified as the boundary stratotype for the base of the global Guzhangian Stage, which is the upmost stage of an unnamed series termed provisionally as Cambrian Series 3. The GSSP position lies 121.3 m above the base of the Huaqiao Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Lejopyge leavigata. The Duibian B section at Duibian village, Jiangshan, western Zhejiang, is proposed as the boundary stratotype for the base of the proposed global Jiangshanian Stage that is the second stage of the Furongian Series. The proposed GSSP position lies 108.12 m above the base of the Huayansi Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Agnostotes orientalius. This horizon is also with the first appearance of the cosmopolitan polymerid trilobite Irvingella angustilimbata.

    Abstract:

    This paper briefly summarizes an officially ratified Global Standard Stratotype-section and Point (GSSP) and a proposed GSSP for global stages of the Cambrian System. The Luoyixi section near Luoyixi town, Guzhang, northwestern Hunan is ratified as the boundary stratotype for the base of the global Guzhangian Stage, which is the upmost stage of an unnamed series termed provisionally as Cambrian Series 3. The GSSP position lies 121.3 m above the base of the Huaqiao Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Lejopyge leavigata. The Duibian B section at Duibian village, Jiangshan, western Zhejiang, is proposed as the boundary stratotype for the base of the proposed global Jiangshanian Stage that is the second stage of the Furongian Series. The proposed GSSP position lies 108.12 m above the base of the Huayansi Formation in the section, coinciding with the first appearance of the cosmopolitan agnostoid trilobite Agnostotes orientalius. This horizon is also with the first appearance of the cosmopolitan polymerid trilobite Irvingella angustilimbata.

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PENG Shanchi, ZHU Xuejian, ZUO Jinxun, LIN Huanling, CHEN Yong’an, WANG Longwu.2011. Recently Ratified and Proposed Cambrian Global Standard Stratotype-section and Points[J]. ACTA GEOLOGICA SINICA(English edition),(2):296~308

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  • 收稿日期:2010-10-01
  • 最后修改日期:2010-12-30
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