甘肃省礼县赵沟金矿床地质特征及成因探讨

The Presentation about the Geological Characteristics and the Cause for Zhaogou Gold Depositin In Gansu Lixian

赵沟金矿床位于西秦岭东段多金属矿集区,是礼岷金矿带李坝金矿田内大-中型金矿床之一。本文从区域地质背景、矿区地质概况、矿体特征以及矿床成因等对赵沟金矿床进行了详尽的论述。成矿特征显示:断裂构造是该区主要的控矿因素,在热动力作用下,矿液沿深大断裂(导矿构造)上升至地表浅部有利容矿空间中,由于物理化学条件的改变而发生充填、交代形成金矿床,赵沟金矿床成因应属热卤水充填交代型金矿床。

Zhaogou gold deposit which is located in the metallic bonanza of western QinLing mountain eastern section is a large-middle sized gold deposit of Liba gold field which in Limin gold belt.This article gave detailed presentation about Zhaogou gold mine bed from aspects of the regional geological environment,an overview about ore-field geology,Geological characteristics of ore-belt as well as the cause of ore s forming and so on.The characteristics for ore s forming show that fault s conformation is the main ore-controlled factor. With the impetus of thermal power, the ore fluid ascend to the ore favorable exist space of earth surface along the deep fault＇s conformation （ore-transform conformation）. Gold deposit come into being with the ore fluid infilling and their interaction as the result of the changes of physical and chemical conditions The cause of Zhaogon gold deposit should be attributed to a hot halogen-water infilling and interaction gold mine bed.