| 东秦岭沉积建造演化与成矿 |
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| 引用本文： | 张正伟, 杨怀洲, 朱炳泉. 东秦岭沉积建造演化与成矿[J]. 地球学报, 2003, (4): 293-298. doi: 10.3321/j.issn:1006-3021.2003.04.001 |
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| 作者姓名： | 张正伟 杨怀洲 朱炳泉 |
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| 作者单位： | 中国科学院地球化学研究所，贵州贵阳550000; 中国科学院广州地球化学研究所，广东广州510640;化工部郑州地质工程勘察院，河南郑州450002;中国科学院广州地球化学研究所，广东广州510640 |
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| 基金项目： | 国家自然科学基金(编号40072033)；中国科学院知识创新工程重要方向项目(KZCX2-SW-125)；国家重点基础研究发展规划项目(编号:G1999043213) |
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| 摘 要： | 在华北古大陆南缘,以控制不同构造单元的断裂为界,构造格局自北而南划分如下:古大陆边缘的基底与盖层单元(华-熊陆缘带),宽坪群构造单元,二郎坪群构造单元,北秦岭(秦岭群)构造单元和南秦岭(刘岭群)构造单元.据陆缘构造发展阶段的沉积建造和岩石组合控矿因素,划分该区沉积建造演化阶段:①前长城纪陆核活动性边缘沉积建造;②中、新元古代被动大陆边缘沉积建造;③早加里东期构造体制转换期演化阶段;④古生代活动大陆边缘沉积建造;⑤中生代陆内碰撞演化阶段.从时间与空间角度,分别研究了不同构造演化阶段的成矿问题.
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| 关 键 词： | 沉积建造 矿床 构造演化 古陆边缘 东秦岭 |
The Development of Sedimentary Buildups and Mineralization in the Eastern Qinling Mountain |
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| The Development of Sedimentary Buildups and Mineralization in the Eastern Qinling Mountain[J]. Acta Geoscientica Sinica, 2003, (4): 293-298. doi: 10.3321/j.issn:1006-3021.2003.04.001 |
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| Authors: | ZHANG Zheng-wei YANG Huai-zhou ZHU Bing-quan |
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| Affiliation: | Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong, 510640;Zhengzhou Institute of Geo-engineering Prospectinf, Ministry of Chemical Industry, Zhengzhou, Henan, 450002;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong, 510640 |
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| Abstract: | According to tectonic characteristics of the study area on the southern margin of North China paleocontinent, the geotec-tonic framework of the area could be divided into five units:(1)the Huashan-Xong'er Mountains continental margin belt;(2)the Kuan-ping Late Proterozoic accretion belt of the paleocontinent;(3)the Erlangping margin basin zone;(4)the Qinling dispersion type island arc terrain; (5)the sedimentary basins of Nanqinling zone. In the light of the evolutionary stages of the sedimentary formation as well as metallogenesis, it can be classified into:(1)the sedimentary formation in the active southern margin of the pre-Mesoproterozoic North China Paleocontinent;(2)the sedimentary formation in the Middle-Late Proterozoic inactive continent margin; (3)the sedimentary formation in the early Paleozoic converse type continent margin;(4)the sedimentary formation in the Paleozoic active margin;(5)the phase of Mesozoic collision. |
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| Keywords: | sedimentary formation metallogenic assemblage tectonic evolution paleocontinental margin East Qinling Mountain |
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