| 有机质热演化与极低级变质作用 |
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| 引用本文： | 李荣西.有机质热演化与极低级变质作用[J].地质科技情报,1996,15(3):64-66. |
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| 作者姓名： | 李荣西 |
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| 作者单位： | 中国矿业大学北京研究生部 |
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| 摘 要： | 岩石中有机质热演化特征可以灵敏于反映岩石的成岩作用到变质作用之间（即极低级变质作用）的温度、压力变化情况。笔者对有机质热变指标在极低级变质作用界线、变质带划分和变质作用温度、压力和时间演化等方面的应用进行了综述和探讨。
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| 关 键 词： | 极低级变质作用 有机质 热演化 成岩作用 变质作用 沉积岩 |
APPLICATION OF THERMAL EVOLUTION OF ORGANIC MATTERS TO STUDY VERY LOW GRADE METAMORPHISM |
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| Li Rongxi.APPLICATION OF THERMAL EVOLUTION OF ORGANIC MATTERS TO STUDY VERY LOW GRADE METAMORPHISM[J].Geological Science and Technology Information,1996,15(3):64-66. |
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| Authors: | Li Rongxi |
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| Abstract: | It is difficult to study very low grade metamorphism of sedimentary rocks because it lacks diagnostic metamorphic minerals at this stage. Organic matters are relatively aboundant in sedimentary rocks and are sensitive to the changes of p T conditions.So they are useful indicators of degree of diagenesis and metamorphism. The thermal evolution of organic matters and its applications in studying very low grade metamorphism of sedimentary rocks are mainly disscussed in this paper. Some new ideas, are also proposed. |
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| Keywords: | very low grade metamorphism organic matters thermal evolution |
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