化石介壳同位素成份用于古盐度分析

被引:2
作者
阴家润
机构
关键词
碳氢稳定同位素; 古盐度定量估测; 侏罗纪; 半咸水; 双壳类;
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摘要
本文对近30个化石介壳进行的碳氧稳定同位素测试结果进行了研究,表明其碳氧稳定同位素成份可用于识别海、陆相环境,半咸水环境,并且这些结论与双壳类、腕足类的生态属性是一致的。利用Keith和Weber(1964)提供的公式z=b(δ13O+50)+a(δ13C+50)计算所得到的结果,比较令人满意地划分出海相,半咸水和淡水生物群。
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页码:553 / 560
页数:8
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