关于中条山胡-篦型铜矿床成矿期和成矿时代问题 |
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引用本文: | 胡维兴.关于中条山胡-篦型铜矿床成矿期和成矿时代问题[J].华北地质矿产杂志,1994(2). |
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作者姓名: | 胡维兴 |
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作者单位: | 地矿部天津地质矿产研究所 |
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摘 要: | 胡-蓖型铜矿床成因,归纳起来可分为沉积-再造和构控-热液两种观点,但二者也有共同之处:一是层控性,二是分为早期细脉浸染型和晚期脉型两种矿化类型。早期矿化为成岩分异或变质分异的产物,生成在2059~1900Ma之间;晚期矿化则是在细脉浸染型矿化的基础上,受中条运动构造-热事件的改造形成,时间在1900~1850Ma之间,二者均属早元古代,而与中元古代西阳河期岩浆-热事件无关。
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关 键 词: | 早期细脉浸染型矿化,晚期脉型矿化,中条运动构造-热事件,早元古代成矿 |
ON MINERALIZATION PERIOD AND METALLOGENIC EPOCH OF THE HU-BI TYPE COPPER CEPOSITS IN ZHONGTIAO MOUNTAINS |
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Authors: | Hu Weixing |
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Institution: | Tianjin Institute of Geology and Mineral Resources |
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Abstract: | View points about genesis of the Hu-Bi type copper deposits may be summarized as twomajor ones,i.e. sedimentation-remoulded mineralization and structural control-hydrothemalorigin.However,they have something in common,e.g. the stratabound characteristics andtwo main mineralization periods,Ore of the early period is veinlet-disseminated type formedby diagenetic or metamorphic differentiation in 2059-l900 Ma,and that of the late period isvein type forrned by remoulding of the early ore due to structural-thermal event of theZhongtiao movement in 1900-l850 Ma,Both type belong to Early-proterozoic rather thanMid-proterozoic and are out of all relation to magma-thermal event of the Xiyanghe epoch. |
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Keywords: | early veinlet-disseminated ore late vein ore structural-thermal event ofZhongtiao Movement Early Proterozoic metallogenesis |
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