CAJ | 학술논문

冰沟南地区位于青海省东昆仑造山带西段祁漫塔格成矿带，成矿地质条件优越，但受自然条件的制约。冰沟南矿床发现较晚，且工作程度较低，找矿类型和找矿前景不明朗。通过分析矿床的地质特征、成矿规律及物化探资料，结合近期铜镍找矿新发现，将冰沟南地区的成矿类型划分为5种类型：矽卡岩型、热液型、斑岩型、岩浆熔离型及沉积变质型。矽卡岩型热液型斑岩型铜铅锌钼矿和岩浆熔离型镍铜钴矿为最主要的2个成矿系列，前者与晚三叠世花岗岩作用密切相关，后者与后碰撞阶段伸展构造背景下幔源岩浆活动密切相关。利用“协优成矿预测”理论，对冰沟南地区找矿前景进行了分析，认为Ⅲ矿带北部具有寻找热液型铅铜钴矿找矿潜力，冰沟南矿区中北部具有寻找岩浆熔离型镍铜钴矿的良好前景。
빙구남지구위우청해성동곤륜조산대서단기만탑격성광대，성광지질조건우월，단수자연조건적제약。빙구남광상발현교만，차공작정도교저，조광류형화조광전경불명랑。통과분석광상적지질특정、성광규률급물화탐자료，결합근기동얼조광신발현，장빙구남지구적성광류형화분위5충류형：석잡암형、열액형、반암형、암장용리형급침적변질형。석잡암형열액형반암형동연자목광화암장용리형얼동고광위최주요적2개성광계렬，전자여만삼첩세화강암작용밀절상관，후자여후팽당계단신전구조배경하만원암장활동밀절상관。이용“협우성광예측”이론，대빙구남지구조광전경진행료분석，인위Ⅲ광대북부구유심조열액형연동고광조광잠력，빙구남광구중북부구유심조암장용리형얼동고광적량호전경。
Binggounan area is located in Qimantage mineralization belt in the west section of East-Kunlun orogenic belt,Qinghai Province,with very favorable mineralization condition. But the prospecting type and prospecting potential are disclear in this area,because the related deposit-sare discovered very late and the degree of geological works is low. After analyzing the geological characteristics of the related deposits,metallogenic regularity,and the data of geophysical and geochemical survey,the following results have been achieved by combining with the recent pros-pecting discoveries of copper-nickel ore. The mineralization types are divides as five types:skarn type,hydrothermal type,porphyry type,magmatic liquation type and sedimentary metamor-phism type. The skarn-hydrothermal-porphyry Cu-Pb-Zn-Mo deposit and magmatic liquation Ni-Cu-Co deposit are the most important metallogenic series in this area. The former is closely relat-ed to Late Triassic granitic magmatism,but the latteris closely related to mantle magmatic activi-ty that occurred in the post-collision extensional tectonic setting.The prospecting potential in Binggounan area is analyzed by using the “Preferenceore-forming prediction”.The results sug-gest that,the prospecting potential of hydrothermal type Pb-Zn-Cu deposit is huge respectively in the north part of No. Ⅲ mine belt,and the ones of magmatic liquation Ni-Cu-Co depositis good in the middle-north part of this mining area.