發(fā)布時(shí)間：2018-01-25 00:28

  本文關(guān)鍵詞： 接觸帶構(gòu)造 礦床地質(zhì)特征 成礦地質(zhì)條件 矽卡巖 薄竹山花崗巖 滇東南　出處：《昆明理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：研究區(qū)位于華南褶皺系滇東南褶皺帶文山-富寧褶皺束薄竹山穹窿北部。本文基于前人在該區(qū)大量的地質(zhì)、礦床研究,依托《滇東南薄竹山地區(qū)鎢鉛鋅銀多金屬礦整裝勘查》項(xiàng)目,對(duì)薄竹山北部礦床地質(zhì)研究相對(duì)較薄弱區(qū)進(jìn)行接觸帶成礦地質(zhì)特征研究。主要研究巖體侵入接觸帶構(gòu)造特征、接觸帶成礦作用機(jī)理和礦化空間分布規(guī)律,對(duì)薄竹山矽卡巖型礦床接觸帶的成礦地質(zhì)條件、接觸帶構(gòu)造對(duì)礦體控制,為該區(qū)尋找相關(guān)礦產(chǎn)資源提供重要資料和依據(jù)。本文依據(jù)該區(qū)基礎(chǔ)地質(zhì)、物化探異常、地質(zhì)鉆探和探槽工程等地質(zhì)工作,將區(qū)內(nèi)接觸帶構(gòu)造按形態(tài)劃分為平直型接觸帶、港灣狀型接觸帶、順層灌入型接觸帶、斷裂帶型接觸帶和樹枝狀型接觸帶構(gòu)造,并將接觸帶構(gòu)造劃分為內(nèi)接觸帶、中接觸帶和外接觸帶。依據(jù)接觸帶構(gòu)造成礦及界面成礦理論,研究接觸帶類型、形態(tài)、構(gòu)造與礦化和礦化富集之間的相互關(guān)系,并分析研究礦床成因及成礦過程。本文從地層、構(gòu)造、巖漿巖、接觸帶構(gòu)造形態(tài)、接觸帶構(gòu)造類型等多方面探討了成礦控礦因素,研究接觸帶構(gòu)造成礦地質(zhì)條件。依據(jù)該區(qū)成礦物質(zhì)來源、控礦因素、成礦過程、成礦規(guī)律及礦床成因,區(qū)內(nèi)礦床主要產(chǎn)于接觸帶構(gòu)造的矽卡巖中,礦體產(chǎn)出由巖體向外形成有高溫到低溫巖漿熱液成礦特征,礦化富集有Sn、W、Fe、Cu逐漸過渡的空間分布規(guī)律。建立了接觸帶構(gòu)造矽卡巖型礦床成礦模型。
[Abstract]:The study area is located in the northern part of Wenshan-Funing fold bundle thin bamboo mountain dome in the south China fold system southeast Yunnan fold belt. This paper is based on a large number of geological deposits in this area. Relying on the project of integrated exploration of tungsten, lead, zinc and silver polymetallic deposits in Bozhushan area, southeastern Yunnan. The ore-forming geological characteristics of contact zone are studied in the relatively weak geological area of the northern part of Bozhushan ore deposit. The structural characteristics of intrusive contact zone, the metallogenic mechanism of contact zone and the spatial distribution of mineralization are mainly studied. For the metallogenic geological conditions of the contact zone of the skarn type deposit in Baozhushan, the contact zone structure controls the orebody, which provides important data and basis for the exploration of related mineral resources in this area. This paper bases on the basic geology, geophysical and geochemical anomalies in this area. In geological work such as geological drilling and grooving engineering, the structure of contact zone in this area is divided into flat contact zone, harbor contact zone and bedding irrigation contact zone according to the shape. The contact zone structure is divided into inner contact zone, middle contact zone and outer contact zone. According to the metallogenic and interfacial metallogenic theory of contact zone, the contact zone type is studied. The relationship between morphology, structure, mineralization and mineralization enrichment, and the analysis of the genesis and metallogenic process of the deposit. This paper deals with the structural morphology of strata, tectonics, magmatic rocks and contact zones. The ore-controlling factors of the contact zone are discussed from many aspects, and the geological conditions of the ore-forming structure in the contact zone are studied. According to the source of the ore-forming material, the ore-controlling factors, the metallogenic process, the metallogenic law and the genesis of the deposit in this area. The ore deposits in this area mainly occur in skarn of contact zone structure. The orebody is formed outward from the rock mass and has the characteristics of high temperature and low temperature magmatic hydrothermal mineralization. A metallogenic model of skarn type deposits in contact zone is established.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P612

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本文編號(hào)：1461466