| 岩体侵位机制对矽卡岩型矿床的制约——以邯邢地区矽卡岩铁矿为例 |
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| 引用本文：.2007.Pluton emplacement mechanism constraint on skarn deposit: A case study of skarn Fe deposits in Handan_Xingtai area [J].Mineral Deposits,26(4):481~486 |
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| 基金项目:中国地质调查局项目“我国主要金属矿床模型研究”（1212010634001）和国家自然科学重点基金项目（40434011） |
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| 中文摘要:河北省南部邯邢地区与矽卡岩型铁矿有关的中酸性侵入岩形成2套深成杂岩体：符山杂岩体和武安杂岩体。这2个杂岩体分别具有不同的侵位机制并对相关矽卡岩型铁矿产生制约：符山杂岩体属被动就位机制，岩体内部形成呈捕虏体状赋存的铁矿体，远离接触带的深部仍具找矿潜力；武安杂岩体属主动就位机制，岩体内部捕虏体罕见，相应的铁矿床主要产于岩体与围岩接触带处，少量形成于碳酸盐岩围岩中；主动就位机制下形成的褶皱是重要的容矿构造。由于矽卡岩型矿床主要的共同特点是与中酸性侵入岩和碳酸盐岩有关，这一成矿规律同样适用于其他矿种的矽卡岩型矿床。 |
| 中文关键词:地质学 岩体 侵位机制 矽卡岩型矿床 制约 邯邢地区 |
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| Pluton emplacement mechanism constraint on skarn deposit: A case study of skarn Fe deposits in Handan_Xingtai area |
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| Abstract:In the Handan_Xingtai area of southern Hebei Province, intermediate_acid intrusives related to skarn iron deposits formed two complexes, i.e., Fushan complex and Wu'an complex. Fushan complex belongs to the positive emplacement mechanism. Within the pluton, the ore bodies occur as xenoliths, and there still exists deep_seated metallogenic potential far away from the contact zone between the intrusives and the carbonate rocks. Wu'an complex belongs to the passive emplacement mechanism. The xenoliths seldom occur within the pluton, and the iron deposits are mainly hosted along the contact zone while a minority within the carbonate country rocks. The anticlines formed under the condition of positive emplacement serve as an important host structure. As all the skarn deposits are closely related to the intermediate_acid intrusives and carbonate rocks, this metallogenic regularity is also applicable to other kinds of skarn deposits. |
| keywords:geology, pluton, emplacement mechanism, skarn deposit, constraint, Handan_Xingtai area |
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