| 北京西山中生代岩浆热变质一维数学模拟 |
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| 引用本文： | 单业华,李志安.北京西山中生代岩浆热变质一维数学模拟[J].中国煤田地质,1996,8(4):7-11. |
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| 作者姓名： | 单业华 李志安 |
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| 作者单位： | [1]中国地质大学 [2]中国科学院长沙大地构造研究所 |
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| 摘 要： | 对北京西山中生代岩浆热变质进行了一维数学模拟，其结果表明，在２．５－３．０ｋｍ深度范围，煤变成无烟；煤；自下而上由于有效受热时间减少，镜质体反射率梯度减小；整个温度场是非稳态，可能导致岩石变形机制随时间和空间的变化而变化。
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| 关 键 词： | 岩浆热变质 数学模拟 镜质体反射率 煤矿床 矿化 |
ONE-DIMENSIONAL MODELING OF MESOZOIC MAGMAIIC METAMORPHISM IN WESTERN HILLS OF BEIJING |
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| Shan Yehua,Yuan Ding.ONE-DIMENSIONAL MODELING OF MESOZOIC MAGMAIIC METAMORPHISM IN WESTERN HILLS OF BEIJING[J].Coal Geology of China,1996,8(4):7-11. |
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| Authors: | Shan Yehua Yuan Ding |
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| Abstract: | One-dimensional model of Mesozoic magmatic metamorphism in Western Hills of Beijngis established in this paper,The result shows that coal was metamorphosed into anthracite at the depthof 2.5-3.0km(equivalent to the burial depth of Carboniferous-permian and Jurrasic coal)The vit-rinire reflectivity(R_o ) Gradient redused from lower to upper since the effective heating time de-creased.The temperature field was non-stable and probaply resulted in the deformational mechanismvaried in time and space. |
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| Keywords: | Magmatic metamorphism one-dimensional mldel vitrinite reflectivity Western Hills ofBeijng |
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