河北武安地区冯昌金矿地质特征及成矿条件分析  

Geological Characters of Fengchang Gold Deposit and Its Forming Conditions in Wu'an,Hebei Province

作　　者：徐桂林[1] 石晓兰[1] 

机构地区：[1]河北省区域地质矿产调查研究所,廊坊065000

出　　处：《地质调查与研究》2005年第3期160-167,共8页Geological Survey and Research

基　　金：河北省地质勘查基金项目(冀地地200437)

摘　　要：冯昌金矿区位于河北省武安市东北部。利用重砂、水系沉积物测量和土壤地球化学找矿方法,通过对武安冯昌一带系统扫面和重点加密工作和1∶1 000比例尺填图,找到十余处含金蚀变矿化带。根据探槽取样分析数据圈定出5个金矿体。矿体产于闪长(玢)岩外围的三叠系长石砂岩破碎带中,褐铁矿化是地表的找矿标志。该类金矿是河北省金矿类型中少见的一种较特殊的类型,对其深入探讨和研究有重要的理论意义和找矿意义。Fengchang gold field is located in the northwestern part of Wu＇an city, Hebei Province. More than 10 gold-bearing alteration-mineralization belts were found with the methods of heavy minerals, stream sediment survey and 1/1 000 geological mapping. 5 gold orebodies were outlined according to the analysis data of the prospecting trench samples. The orebodies developed in the Trias arkose fracture belts outside the diorites. The limonite is the criteria for ore prospecting. This kind of gold ore is an especial one in Hebei Province and is very important to study the gold ore in this area for further prospecting.

关 键 词：冯昌金矿 蚀变带 长石砂岩 褐铁矿化 河北武安 

分 类 号：P618.51[天文地球—矿床学]