| 沉积岩对楚雄盆地砂岩铜矿成矿的控制 |
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| 引用本文： | 陈根文,夏斌,吴延之,钟志洪,王国强.沉积岩对楚雄盆地砂岩铜矿成矿的控制[J].矿物岩石,2002,22(3):24-28. |
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| 作者姓名： | 陈根文 夏斌 吴延之 钟志洪 王国强 |
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| 作者单位： | 1. 中国科学院广州地球化学研究所,广东,广州,510650
2. 中南大学资源环境与建筑工程学院,湖南,长沙,410083 |
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| 基金项目： | 国家攀登计划预选项目 (编号 :95 -预 -2 5 )，国家 973项目 (编号 :G19990 43 2 40 )资助 |
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| 摘 要： | 楚雄盆地砂岩铜矿产于白垩系地层层位中，矿床与盆地内的下部含煤建造，中部的红色含铜碎屑岩建造和上部白色膏盐建造关系密切，含矿岩系具有向上变细的剖面结构，矿化常形成于不整合界面以上的一定范围内，含矿岩石以细砂岩为主，铜矿化与胶结物总量和钙质，硅质磁结物有关，并形成了浅色岩层过渡的氧化-还原界面附近，沉积成岩作用对矿床的形成起重要作用。
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| 关 键 词： | 沉积岩 砂岩铜矿床 成岩作用 楚雄盆地 成矿作用 云南 |
| 文章编号： | 1001-6872(2002)03-0024-05 |
CONTROLS OF SEDIMENTARY ROCK ON SANDSTONE- HOSTED COPPER DEPOSITS IN CHUXIONG BASIN |
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| Chen Gen-wen,XIA Bin,WU Yan-zhi,ZHONG Zhi-hong,WANG Guo-qinag .Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou ,China, .Centre-south University.CONTROLS OF SEDIMENTARY ROCK ON SANDSTONE- HOSTED COPPER DEPOSITS IN CHUXIONG BASIN[J].Journal of Mineralogy and Petrology,2002,22(3):24-28. |
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| Authors: | Chen Gen-wen XIA Bin WU Yan-zhi ZHONG Zhi-hong WANG Guo-qinag Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Centre-south University |
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| Institution: | Chen Gen-wen~1,XIA Bin~1,WU Yan-zhi~2,ZHONG Zhi-hong~1,WANG Guo-qinag~1 1.Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510650,China, 2.Centre-south University,Department of Resousce,Environment and |
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| Abstract: | The sandstone-hosted copper deposits of Cretaceous age in the Chuxiong basin were closely related with the lower coaly formation,the middle cupriferous formation and upper gypsum-salt formation.The grain size of the ore-bearing formations became finer upward in the cross section.The copper mineralization formed in certain range above the unconformable contact.Cupriferous rocks are mainly fine-grained.Mineralization is related with calcic and siliceous cements and also with the total content of cements.Ore bodies formed in the vicinity of oxidizing-reducing interface.There is enough evidence to indicate that diagenesis played important role in copper mineralization. |
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| Keywords: | sandstone-hosted copper deposit diagenesis Chuxiong basin Yunnan province |
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