本文選題：駱駝山 + 硫鐵礦�。� 參考：《中國(guó)地質(zhì)大學(xué)(北京)》2015年碩士論文

【摘要】：東秦嶺駱駝山多金屬硫鐵礦位于華北克拉通最南端,它銜接了盧氏—確山構(gòu)造帶以及北秦嶺板內(nèi)增生帶,是欒川南泥湖大型鉬礦田中一個(gè)典型的多金屬硫鐵礦床,研究該礦床的成礦作用對(duì)于區(qū)域上尋找類(lèi)似礦床有著重要意義。本文全面收集前人的最新研究成果,在野外地質(zhì)調(diào)查及室內(nèi)資料綜合分析的基礎(chǔ)上,總結(jié)研究區(qū)成礦地質(zhì)特征及控礦因素,并指出下部探礦的大致方向。通過(guò)野外地質(zhì)工作與室內(nèi)綜合整理,基本查明了駱駝山礦區(qū)主要的礦區(qū)構(gòu)造、地層、巖漿巖等地質(zhì)特征;多金屬硫鐵礦及脈狀鉛鋅礦的礦體特征、礦石特征,及礦床的圍巖蝕變等。通過(guò)資料分析對(duì)比,大致確定出礦床的控制因素。上房溝花崗巖體為礦床形成提供了主要的物質(zhì)來(lái)源和熱源;褶皺形成的張性斷裂帶,往往給礦液滲透和交代提供了通道和沉淀的場(chǎng)所,為淺部局部厚大礦體的形成提供了有利的條件,圍巖裂隙的發(fā)育,利于礦液充填交代;礦床形成與三川組地層存在一定的聯(lián)系,地層成礦物質(zhì)的初步富集為礦床形成提供了部分物質(zhì)來(lái)源。通過(guò)資料分析對(duì)比,大致了礦床的成礦作用及成礦時(shí)限,大致推測(cè)礦床成礦作用應(yīng)當(dāng)發(fā)生于大致140Ma左右的早白堊世構(gòu)造—巖漿—成礦流體作用。初步建立了成礦模型,指出礦山下部探礦的方向,即Ⅰ號(hào)多金屬硫鐵礦體及脈狀鉛鋅礦體的深部,為礦山可持續(xù)發(fā)展提供依據(jù)。
[Abstract]:The East Qinling Luohushan polymetallic pyrite is located at the southernmost tip of the North China Craton. It is a typical polymetallic pyrite deposit in the large scale molybdenum ore field of NanNihu in Luanchuan, which connects the Lush-Queshan tectonic belt and the North Qinling intraplate accretive zone. It is important to study the mineralization of the ore deposit for finding similar deposits in the region. On the basis of field geological survey and comprehensive analysis of indoor data, this paper summarizes the ore-forming geological characteristics and ore-controlling factors in the study area, and points out the general direction of the lower exploration. Through field geological work and indoor comprehensive arrangement, the geological characteristics of main mining area structures, strata, magmatic rocks, ore bodies and ore characteristics of polymetallic pyrite and vein lead-zinc deposits are basically identified. And the alteration of the surrounding rock of the deposit. Through the analysis and comparison of the data, the controlling factors of the deposit are roughly determined. The Shangfanggou granite body provides the main material source and heat source for the formation of the ore deposit, and the extensional fault zone formed by the fold often provides the passage and the place for the deposit to permeate and replace the ore solution. It provides favorable conditions for the formation of shallow local thick large orebodies, the development of surrounding rock fissures and the filling and metasomatism of ore fluids, and the formation of the deposits is related to the strata of Sanchuan formation. The preliminary enrichment of the ore-forming materials provides a part of material source for the formation of the deposit. Through the analysis and comparison of the data, the metallogenic process and metallogenic time period of the deposit are roughly discussed, and it is inferred that the mineralization of the deposit should take place in the early Cretaceous tectonic-magmatic ore-forming fluid about 140Ma. A preliminary metallogenic model was established, and the direction of prospecting in the lower part of the mine, I. e., the deep part of the No. 1 polymetallic pyrite body and the vein type lead-zinc ore body, was pointed out, which provided the basis for the sustainable development of the mine.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：P618.31

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本文編號(hào)：1908325