青海曲麻莱大场地区金矿剥蚀程度研究

A Stusdy to Deposit Denudation in the Gold Deposit in Dachang

大场地区位于北巴颜喀拉金、锑成矿带中部,近年来该地区矿产勘查工作取得了重大成果,发现了大场超大型金矿床及扎家同哪、加给陇洼、稍日哦、扎拉依等中—大型金矿床以及格涌尕玛考、阿棚鄂金矿点。主要通过对该地区地层分布特征、异常分布情况、成矿环境等的研究,了解矿床的剥蚀程度,为该地区进一步的找矿工作提供依据。

Dachang is in the middle section of the North Bayankala Au、Sb metallogenic belt.In recent years mineral,exploration work in the area has achieved significant results.The superlarge gold deposit (Dachang gold deposit)、large-middle gold depisits(Zhajiatongna、Jiageilongwa、Shaorie and Zhalayi gold deposits) and gold occurrences(Geyonggamakao and Apengeyi) have been found.Predecessors also find the Dachang and Geyonggamakao gold placer deposits which indicate that Dachang gold deposit experienced different degree of denudation.This study carries out the characteristic of strata distribution、anomaly distribution and metallogenic environment in the discussion of the degree of denudation in the gold deposits to provide a basis for further ore prospecting work in the area.