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甘肃窑街中侏罗世化石角质层有机质及其碳同位素组成与古环境的关系

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张成君, 孙柏年, 王云鹏, 刘金钟, 闫德飞. 甘肃窑街中侏罗世化石角质层有机质及其碳同位素组成与古环境的关系[J]. 西北地质, 2004, 37(2): 42-47.
引用本文: 张成君, 孙柏年, 王云鹏, 刘金钟, 闫德飞. 甘肃窑街中侏罗世化石角质层有机质及其碳同位素组成与古环境的关系[J]. 西北地质, 2004, 37(2): 42-47.
shu
ZHANG Cheng-jun, SUN Bai-nian, WANG Yun-peng, LIU Jin-zhong, YAN De-fei. The relation between fossil cuticle organic matter, their carbon isotopic compositions and paleoenvironment in Middle Jurassic series, Yaojie, Gansu[J]. Northwestern Geology, 2004, 37(2): 42-47.
Citation: ZHANG Cheng-jun, SUN Bai-nian, WANG Yun-peng, LIU Jin-zhong, YAN De-fei. The relation between fossil cuticle organic matter, their carbon isotopic compositions and paleoenvironment in Middle Jurassic series, Yaojie, Gansu[J]. Northwestern Geology, 2004, 37(2): 42-47.
shu

甘肃窑街中侏罗世化石角质层有机质及其碳同位素组成与古环境的关系

  • 1.

    兰州大学资源环境学院, 甘肃 兰州 730000

  • 2.

    中国科学院广州地球化学研究所, 广东 广州 510640

  • 基金项目: 国家自然科学基金(49972013,40372012);甘肃省自然科学基金(ZS031-A25-002-Z);中国科学院广州地球化学研究所有机地球化学国家重点实验室项目(OGL-9907)共同资助.

The relation between fossil cuticle organic matter, their carbon isotopic compositions and paleoenvironment in Middle Jurassic series, Yaojie, Gansu

  • 1.

    College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China

  • 2.

    Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China

    摘要
  • 通过对甘肃窑街中侏罗统窑街组化石银杏以及现代银杏角质层有机质组分和碳同位素组成分析,表明银杏角质层有较强的抗风化能力,化石和现代银杏角质层有机质烷烃和甾萜类化合物组成十分相似。可以通过角质层的碳同位素组成等参数进行古环境重建,结果表明中侏罗世早期古环境较为温湿,到了中期后古气候逐渐变得干旱少雨,后期降雨量又逐渐增加,温度升高,植被发育。
    Fossil in the Middle Jurassic Yaojie Formation,Yaojie,Gansu and modern Ginkgo cuticle organic components and organic carbon isotopic composition have been analy sed in this paper.It's shown that Gink gocuticles have a high chemical resistance tow ards wea thering and there is a similar a lkanes and terpenes and steroids components between fossil and modern Ginkgo cuticles.Paleoenvironment can be recon structed by using carbon isotopic compositions and other parameters of Ginkgo cuticles.The result canbe made that paleoenvironment was warm and wet in the early,and became graduallya rid and little rain after middlep eriod,and then rainfall and temperature increa sed,vegetation developed in the late of Middle Jurassic series.
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出版历程
收稿日期:  2004-01-12
刊出日期:  2004-06-15

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