| 湖北京山地区寒武—奥陶系碳酸盐岩成岩作用及孔隙演化 |
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| 引用本文： | 万静萍,马立祥,杨木壮.湖北京山地区寒武—奥陶系碳酸盐岩成岩作用及孔隙演化[J].地球科学,1990(6). |
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| 作者姓名： | 万静萍 马立祥 杨木壮 |
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| 作者单位： | 中国地质大学石油系
(万静萍，马立祥)，中国地质大学石油系(杨木壮) |
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| 摘 要： | 本文通过对京山地区寒武—奥陶系碳酸盐岩成岩作用和孔隙演化的研究,认为本区寒武—奥陶系普遍经历了海底、大气淡水、埋藏及表生成岩环境,其间发生的成岩作用主要有胶结作用、白云岩化、压实-压溶、溶蚀和破裂作用。在这些成岩作用的改造下,岩石孔隙度从大于20％下降到1.5～5％,其中在中新生代孔隙相对较发育。
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| 关 键 词： | 成岩作用 成岩序列 孔隙演化 寒武—奥陶系 湖北省 |
THE CARBONATES DIAGENESIS AND POROSITY EVOLU-TION OF CAMBRIAN-ORDOVICIAN IN JINGSHAN REGION, HUBEI PROVINCE |
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| Wan Jingping Ma Lixiang Yang Muzhuang.THE CARBONATES DIAGENESIS AND POROSITY EVOLU-TION OF CAMBRIAN-ORDOVICIAN IN JINGSHAN REGION, HUBEI PROVINCE[J].Earth Science-Journal of China University of Geosciences,1990(6). |
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| Authors: | Wan Jingping Ma Lixiang Yang Muzhuang |
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| Abstract: | The carbonates diagenesis and porosity evolution of Cambrian-Ordovician in Jingshan region have been studied in this paper. The study has shown that Cam-brian-Ordovician carbonates have undergone epibenthile, atmos pheric-freshwater, burial and epigenetic diagenetic environments. The diageneses are mainly cementa-tion, dolomitation, compaction-chemical compaction, solution and fracture. The porosity of carbonates decreases from more than 20% to 1.5% by the diagenetic effects. |
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| Keywords: | diagenesis diagenetic sequence evolution of porosity Cambrian-Ordovician Hubei Province |
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