| 许晓峰.从交代蚀变矿物标型特征研究冀南矽卡岩型铁矿床的形成[J].地质找矿论丛,1986,(1):50-56 |
| 从交代蚀变矿物标型特征研究冀南矽卡岩型铁矿床的形成 |
| STUDY ON THE FORMATION OF SKARN IRON DEPOSIT IN THE SOUTH HEBEI FROM THE TYPOMORPHIC CHARACTERISTICS OF METASOMATIC ALTERATION MINERAL |
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| DOI：10.6053/j.issn.1001-1412.1986.1. 005 |
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| 中文摘要: |
| 热液成矿过程常表现在热液的交代过程中.成矿溶液从产生到结束总是伴随着交代蚀变作用,而成矿物质的集中却经常是发生在其中某一或某些阶段.在交代作用过程所形成的矿物必然会保留其形成时的某些信息.因之,研究交代蚀变矿物标型特征及共生组合,有可能建立在成矿作用过程及其产物在时间上的演化和空间上的分布,成矿物质的来源及搬运形式和集中条件等.本文从交代蚀变矿物标型特征等来研究冀南矽卡岩型铁矿床的形成. |
| 英文摘要: |
| The typomorphic characteristics of metasomatic alteration minerals and their association obviously reveal that iron and pneumatolytic solution were derived from diorite and monzonite magma of Devonian evaporites sublected to assimilating contamination, contact zone formed by uplifted magma and the associated faults or fractures constitute the main structure controlling the activation, transition, aggregation of iron pneumatolytic solution and the adjustment for pressure of co2, o2, so that the metasomatism could be continuously carried on.The typomorphic characteristics and association of metasomatic minerals demonstrate that such a decompression-discharge system, stared from emplacement, through pneumatolito-hydrothermal process to hydrothermal alteration stage is in fact a successive mineralization process, although it had undergone a long multi-stage metasomatic alteration process. Most magnetite were formed during the transitional period from gas-liquid to liquid phase....... |
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