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    海相碳酸盐岩中的铁: 烃源岩古生产力评估的新指标

    胡超涌 潘涵香 马仲武 沈尔卜 颜佳新

    胡超涌, 潘涵香, 马仲武, 沈尔卜, 颜佳新, 2007. 海相碳酸盐岩中的铁: 烃源岩古生产力评估的新指标. 地球科学, 32(6): 755-758.
    引用本文: 胡超涌, 潘涵香, 马仲武, 沈尔卜, 颜佳新, 2007. 海相碳酸盐岩中的铁: 烃源岩古生产力评估的新指标. 地球科学, 32(6): 755-758.
    HU Chao-yong, PAN Han-xiang, MA Zhong-wu, SHEN Er-bu, YAN Jia-xin, 2007. Iron Abundance in the Marine Carbonate as a Proxy of the Paleo-Productivity in Hydrocarbon Source Rocks. Earth Science, 32(6): 755-758.
    Citation: HU Chao-yong, PAN Han-xiang, MA Zhong-wu, SHEN Er-bu, YAN Jia-xin, 2007. Iron Abundance in the Marine Carbonate as a Proxy of the Paleo-Productivity in Hydrocarbon Source Rocks. Earth Science, 32(6): 755-758.

    海相碳酸盐岩中的铁: 烃源岩古生产力评估的新指标

    基金项目: 

    中国石油化工股份有限公司海相油气勘探前瞻性项目 G0800-06-2S-319

    国家自然科学基金重点项目 40531004

    详细信息
    • 中图分类号: P736

    Iron Abundance in the Marine Carbonate as a Proxy of the Paleo-Productivity in Hydrocarbon Source Rocks

    • 摘要: 准确评估古生产力变化对了解古气候、古海洋演化, 探索石油、天然气的形成机制及分布规律十分重要.尽管众多的地球化学指标被用于表征海洋生产力, 但大多指标容易受后期地质作用的改造而导致信息失真, 其应用仅限于第四纪沉积物.在现代海洋研究的基础上, 本文从海水铁制约海洋生产力的生物地球化学原理出发, 提出了碳酸盐中的铁作为古生产力的一个新指标.该指标用于广西来宾蓬莱滩二叠纪瓜德鲁普统-乐平统全球界限附近海相碳酸盐的研究, 发现它与响应生产力变化的δ13C有相同的变化, 说明海相碳酸盐中的铁可以表征地质历史时期的海洋生产力.

       

    • 图  1  蓬莱滩剖面碳酸盐中铁和碳同位素的组成特征(碳同位素据Wang et al., 2004)

      Fig.  1.  Variation of iron and carbon isotopic composition in the marine carbonates from the boundary between the Guadalupian and Lopingian, Penglaitan

      表  1  广西来宾蓬莱滩二叠纪瓜德鲁普统-乐平统界线碳酸盐相铁的组成

      Table  1.   Iron in the marine carbonate from Permian boundary between the Guadalupian and Lopingian, Penglaitan, Laibin, Guangxi

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    出版历程
    • 收稿日期:  2007-08-15
    • 刊出日期:  2007-11-25

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