中国钨业
中國鎢業
중국오업
CHINA TUNGSTEN INDUSTRY
2013年
5期
1-5
,共5页
阮昆%王晓娜%吴奕%杨春鹏%管伟村%潘家永
阮昆%王曉娜%吳奕%楊春鵬%管偉村%潘傢永
원곤%왕효나%오혁%양춘붕%관위촌%반가영
大湖塘钨矿田%岩浆岩演化%构造与成矿
大湖塘鎢礦田%巖漿巖縯化%構造與成礦
대호당오광전%암장암연화%구조여성광
Dahutang Tungsten Ore Field%magmatic evolution%structure and mineralization
大湖塘钨矿田位于扬子古板块东南缘,属长江中下游成矿带重要组成部分,其发现彻底改变了江西“南钨北铜”的资源格局。针对大湖塘燕山期岩浆岩演化与成矿的关系、构造作用对成矿的影响进行了论述。分析矿体主要赋存在早白垩世岩浆岩接触带附近及爆破角砾岩内,与晋宁晚期黑云母花岗闪长岩和燕山期酸性深成至浅成花岗岩关系密切。矿区内成矿流体主要为中高温、低盐度流体,硫同位素具有幔源硫的特征;在构造体系方面,韧性剪切带、断层及节理发育部位有重要的控矿作用。
大湖塘鎢礦田位于颺子古闆塊東南緣,屬長江中下遊成礦帶重要組成部分,其髮現徹底改變瞭江西“南鎢北銅”的資源格跼。針對大湖塘燕山期巖漿巖縯化與成礦的關繫、構造作用對成礦的影響進行瞭論述。分析礦體主要賦存在早白堊世巖漿巖接觸帶附近及爆破角礫巖內,與晉寧晚期黑雲母花崗閃長巖和燕山期痠性深成至淺成花崗巖關繫密切。礦區內成礦流體主要為中高溫、低鹽度流體,硫同位素具有幔源硫的特徵;在構造體繫方麵,韌性剪切帶、斷層及節理髮育部位有重要的控礦作用。
대호당오광전위우양자고판괴동남연,속장강중하유성광대중요조성부분,기발현철저개변료강서“남오북동”적자원격국。침대대호당연산기암장암연화여성광적관계、구조작용대성광적영향진행료논술。분석광체주요부존재조백성세암장암접촉대부근급폭파각력암내,여진저만기흑운모화강섬장암화연산기산성심성지천성화강암관계밀절。광구내성광류체주요위중고온、저염도류체,류동위소구유만원류적특정;재구조체계방면,인성전절대、단층급절리발육부위유중요적공광작용。
Located in the southeastern margin of the Yangtze paleoplate, Dahutang Tungsten Ore field is an important part of Yangtze River's metallogenic belt, which completely changes the resource pattern of Jiangxi Province, being "tungsten in the south and copper in the north" . This paper discusses the relationship between magmatic rocks evolution mineralization and the effects of tectonism on mineralization during Yanshan period of Dahutang. Results show that ore body mainly existed near the contact zone of magmatic rocks of the early cretaceous breccia and in blasting breccia, which had an extremely close relationship with the late Jinningian biotite granodiorite and Yanshanian acidic plutonic to hypabyssal granite. Forming fluids within the mining area were mainly medium-high temperature and low salinity fluids. Sulfur isotopic have the characteristics of mantle-derived sulfur. In the ductile shear zone and fault and joint development are important ore control areas n the structural system.