| 赣中相山矿田逆冲推覆构造地质特征与成矿关系 |
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| 引用本文： | 周玉龙,杨松.赣中相山矿田逆冲推覆构造地质特征与成矿关系[J].世界核地质科学,2012,29(2):72-77. |
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| 作者姓名： | 周玉龙 杨松 |
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| 作者单位： | 1. 江西省核工业地质局261大队,江西鹰潭,335001
2. 中核抚州金安铀业有限公司,江西抚州,344301 |
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| 摘 要： | 阐明逆冲推覆构造地理分布,较全面论述逆冲推覆构造地质特征,系统概括逆冲推覆构造对铀成矿作用。逆冲推覆构造不但形成了导、运、移、储完备的三维立体构造网络系统,而且使贯通基底的构造复活,诱发次火山岩浆侵入,形成了岩性差异明显并具多层岩性结构的"立交"式岩层构造组合,创造了有利于成矿的一个封闭、半封闭的地质环境。推覆体下隐伏构造是岩浆侵入、矿液运移的良好通道和存储空间,致使深部成矿热液在局部富集形成矿体。矿化部位一个是富集于次火山岩接触带产状变化或形态变异处;另一个是高集于隐伏逆掩断层与基底NE向构造交汇的复合部位。
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| 关 键 词： | 相山矿田 逆冲推覆构造 铀矿化 控矿作用 |
The geologic character of nappe structure and its relation to uranium mineralization of Xiangshan ore-field in the middle of Jiangxi Province |
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| ZHOU Yu-long
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YANG Song.The geologic character of nappe structure and its relation to uranium mineralization of Xiangshan ore-field in the middle of Jiangxi Province[J].World Nuclear Geoscience,2012,29(2):72-77. |
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| Authors: | ZHOU Yu-long YANG Song |
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| Affiliation: | 1.Geological Party No.261,Jiangxi Province Nuclear Geological Bureau,Yingtan,Jiangxi 335001, China;2.Fuzhou Jin’an Uranium Mine Co.Ltd,CNNC,Le’an,Jiangxi 344301,China) |
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| Abstract: | Started with the spatial distribution of nappe structure,the geologic features are discussed and its effect on uranium mineralization is systematically summarized for Xiangshan ore-field in the middle of Jiangxi Province.The nappe structure not only formed a "cross-over" lithologic combination which creates a network system which can connect,transport,migrate the mineralized matter,but also formed some close or semi-close geologic setting beneath the nappe which can act as the store ore shield space for the mineralized liquid to form uranium deposit.The mineralization is concentrated at the varied place of occurrences or shape of subvolcanic rocks and the intersection of concealed overthrust and NE strike basic fractures. |
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| Keywords: | Xiangshan ore-field nappe structure uranium mineralization ore-controlling effect |
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