冀西北水泉沟碱性杂岩体与金矿关系探讨  

Relation between the Shuiquangou alkali intrusive complex and gold mineralization in the northwestern Hebei Province

作　　者：魏明辉[1] 陈树清[1] 谷振飞[1] 燕云生 全素桃[1] 

机构地区：[1]河北省地矿局第三地质大队,张家口075000

出　　处：《矿产勘查》2014年第1期32-38,共7页Mineral Exploration

摘　　要：水泉沟碱性杂岩体是冀西北金矿集聚区规模最大、岩石类型最多、成因最复杂的代表性岩体。通过对岩体岩石类型、矿物成分、化学成分、成因和形成时代综合分析得出,水泉沟岩体与金矿床具有同源、同时、同构造的特点。岩体是在尚义—赤城—平泉深大韧性剪切(断裂)带控制下的多期次岩浆改造产物。岩浆、构造活动反复发生,导致岩体中的Au发生多次活化、迁移和再分配。岩体的形成过程也是Au元素活化、迁移、富集的成矿过程。The Shuiquangou alkali intrusive complex is one of typical intrusive in the gold mineralization area in the northwestern Hebei Province, which is characterized with the largest scale of outcrops, complicated intrusive rock types and the complicated rock genesis. Through the comprehensive analysis on the rock types, mineral composition, chemical constituents, genesis and formation age of the alkali complex, it is concluded that there is the formation of the Shuiquangou alkali complex and the gold mineralization is in the same environment, i. e. , same material source, same structural controlling and same formation age. The Shuiquangou alkali complex was formed as the product of the multiple stages of the magma reformation controlled by the Shangyi Chicheng Pingquan deep ductile shear zones. The multiple stages of continuous tectonic and magmatic activities leached the gold element from the alkali complex, mi grated and re deposited repeatedly. The diagenetic process of the Shuiquangou alkali complex is also the ore forming process of the gold by leaching, migrating and enriching in the favorable structural space.

关 键 词：水泉沟 碱性杂岩体 金矿 冀西北 

分 类 号：P618.51[天文地球—矿床学]