青海省都兰县红旗沟—深水潭金成矿地质特征及成矿远景分析

发布时间：2018-05-03 13:48

本文选题：青海省 + 红旗沟—深水潭金矿　；参考：《中国地质大学(北京)》2015年硕士论文

【摘要】：红旗沟—深水潭金矿床是在东昆仑成矿带上发现的大型岩金矿床,位于青海省都兰县诺木洪乡五龙沟地区,地处东昆仑中段北坡。前人对红旗沟—深水潭金矿做了多方面的研究,由于地理气候条件及勘查工作手段的限制等原因研究程度不足,控矿因素、找矿标志不明。在全面收集区内资料的基础上,充分对比研究前人资料及成果,查明了区内的成矿地质背景、地球化学特征、矿床特征,对矿区内主要控矿因素进行总结,建立了找矿标志,结论如下:1.区内地层对成矿贡献不大,晚三叠纪侵入岩为成矿提供了热液和矿源。北西—南东向断裂构造是区内成矿和控矿的最主要因素,不仅为深部成矿热液的运移提供了通道,也是直接的储矿场所,控制了矿床的分布。2.查明了矿体的产出和分布特征,矿体产出严格受北西—南东向断裂带控制,主要赋存于破碎蚀变带内及其上下盘,空间分布上尖灭再现、分段集中、倾向有膨大狭缩、分支复合等特征明显。3.对矿床成因类型及成矿时代进行初步探讨。成矿期属印支晚期—燕山早期,矿床工业类型为构造蚀变岩型,矿床成因类型属中低温岩浆热液型。4.通过样品测试,确定矿床特征元素组合为Au、As、Sb,毒砂矿化强弱与金矿化强度密切关联。5.归纳总结了区内的找矿标志,对矿区及外围的的成矿远景及找矿方向进行了分析。区内成矿条件优越,找矿潜力巨大,在XI号带南东延伸方向、希望沟、五龙沟西等地段仍存在找矿潜力。
[Abstract]:The Hongqigou-Shenshuitan gold deposit is a large rock gold deposit found in the metallogenic belt of East Kunlun Mountains. It is located in the north slope of the middle section of East Kunlun Mountains in Nomuhong Township Wulonggou area of Dulan County in Qinghai Province. The predecessors have done many studies on the Hongqigou-Deep Shuitan Gold Mine. Due to the lack of research degree due to the geographical and climatic conditions and the limitation of exploration methods, the ore-controlling factors and the prospecting criteria are not clear. On the basis of collecting the data in the area in an all-round way, the previous data and achievements are compared and studied, and the geological background, geochemical characteristics, ore deposit characteristics of the area are found out, and the main ore-controlling factors in the mining area are summarized, and the prospecting criteria are established. The conclusion is as follows: 1. The late Triassic intrusive rocks provide hydrothermal solution and source for mineralization. NW-SE trending fault structure is the most important factor of ore-forming and ore-controlling in this area, which not only provides a passage for the migration of deep ore-forming hydrothermal solution, but also is a direct place for ore storage, controlling the distribution of ore deposit .2. The occurrence and distribution characteristics of orebody are found out. The orebody output is strictly controlled by the NW-SE fault zone, mainly occurs in the broken alteration zone and its upper and lower disks, the spatial distribution is pointed out and reappeared, the segment is concentrated, and tends to expand and narrow. The branching and compound isobaric characteristics are obvious. 3. The genetic type and metallogenic age of the deposit are preliminarily discussed. The metallogenic period belongs to the late Indosinian to the early Yanshanian period. The industrial type of the deposit is tectonic altered rock type, and the genetic type of the deposit belongs to the medium-low temperature magmatic hydrothermal type .4. Through the sample test, it is determined that the characteristic element assemblage of the deposit is Auto-As-Sb, and the mineralization intensity of arsenopyrite is closely related to the gold mineralization intensity .5. The ore-prospecting indicators in this area are summarized and the metallogenic prospect and prospecting direction of the ore area and its periphery are analyzed. The ore-forming conditions in the area are superior and the prospecting potential is great. There is still prospecting potential in the south east extension direction of No. XI belt, hope ditch, Wulonggou west and so on.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.51

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