河北省“长城式”金矿矿床地质特征简介

Geological features of "the Great Wall type" gold deposit in Hebei Province

＂长城式＂金矿是产于中元古界长城系碳酸盐岩地层中的一种新类型金矿。含矿带长约50 km,宽4~5km,由多个矿区,几十个矿体构成,一般单个矿体规模较小,矿体厚度变化系数26%,品位变化系数74%,矿体产出受地层和构造控制明显。

＂The Great Wall type＂ gold ore is a new type of gold deposit,which is originated in carbonatite formation of Great Wall System of Mesoproterozoic erathem.The ore-bearing zone is about 50 km long,4-5 km wide,consists of multiple mining area and dozens of ore body.Generally single ore body is small;ore body thickness variation coefficient is 26%,grade variation coefficient is 74%.The ore bodies were controlled obviously by stratum and tectonic.