本文選題：波龍銅(金)礦床 + 斑巖型��； 參考：《成都理工大學(xué)》2015年碩士論文

【摘要】：多龍礦集區(qū)位于班公湖-怒江成礦帶西段,以其礦床規(guī)模巨大、類型多樣、研究程度較高而備受關(guān)注。波龍斑巖型銅(金)礦床是多龍礦集區(qū)大型礦床之一。本文優(yōu)選礦體特征研究程度較低的波龍礦床為研究對(duì)象,在充分了解了礦區(qū)的地層、構(gòu)造、巖漿巖及圍巖蝕變類型的基礎(chǔ)之上,對(duì)礦床地質(zhì)要素進(jìn)行了詳細(xì)的研究。波龍礦區(qū)礦體主要賦存于中酸性花崗閃長(zhǎng)斑巖和曲色組長(zhǎng)石石英砂巖中。受斑巖體主動(dòng)侵位和氣水隱爆作用,使巖體周邊接觸帶附近的圍巖形成大量交錯(cuò)狀、網(wǎng)脈狀裂隙。為成礦物質(zhì)的運(yùn)移提供通道,使成礦物質(zhì)在裂隙沉淀成礦。礦化多呈細(xì)脈狀充填于裂隙中,也可見(jiàn)浸染狀礦化的分布。礦物類型主要為黃銅礦、黃鐵礦,可見(jiàn)少量的斑銅礦、輝鉬礦。根據(jù)礦區(qū)近兩年的鉆探工程資料,并結(jié)合樣品測(cè)試分析,對(duì)礦床地質(zhì)要素進(jìn)行解析研究,通過(guò)對(duì)礦床地質(zhì)要素以及相互之間關(guān)系的綜合研究得出以下認(rèn)識(shí):波龍礦區(qū)控礦因素主要為花崗閃長(zhǎng)斑巖、長(zhǎng)石石英砂巖以及巖漿侵位時(shí)發(fā)育的裂隙構(gòu)造。礦區(qū)礦體主要賦存于中酸性侵入巖以及靠近侵入巖分布的長(zhǎng)石石英砂巖中,巖體及圍巖蝕變發(fā)育,從內(nèi)向外主要發(fā)育鉀硅酸鹽化、石英-絹云母化、綠泥石-綠簾石化。波龍礦區(qū)侵入巖呈近直立的扁橢圓狀的不規(guī)則體,巖體頂面凹凸不平。礦區(qū)侵入巖體在工程控制范圍內(nèi)整體呈北高-中部底的趨勢(shì),中部控制厚度較大。礦區(qū)中部巖體的底界未控制。推測(cè)巖漿熱液的聚集中心在礦區(qū)中部,并以此為中心向北西、北東以及南東向運(yùn)移。波龍礦區(qū)成礦熱液聚集中心為礦區(qū)中部ZK17101附近區(qū)域,以此為中心礦液向四周運(yùn)移,礦體整體呈不規(guī)則的火焰狀,平面呈似橢圓形狀,整體呈東西走向,傾向南。礦體頂、底部凹凸不平,相對(duì)高差較大。波龍礦區(qū)礦體東西向主要分布在187-155勘探線之間,南北向主要分布在02-07排之間。礦區(qū)礦體厚度具有中部厚,邊緣薄的特點(diǎn)。礦體四周邊界已被控制,只有礦區(qū)北東部可能有少量礦體出露,深部礦體邊界未被控制,說(shuō)明深部還有巨大的找礦潛力。通過(guò)巖體和礦化關(guān)系的研究,成礦和巖體密切相關(guān),成礦晚于巖漿侵位,成礦熱液上侵利用了巖漿侵位形成的通道系統(tǒng),但沉積范圍更廣,以致巖體并非全巖礦化,巖體與圍巖均容礦。根據(jù)礦體厚度等值線圖和品位×厚度等值線圖表明,成礦熱液最初聚集場(chǎng)所為侵入巖分布厚度大的部位。后期成礦熱液沿著巖體裂隙侵位,在巖體裂隙聚集及沉淀,同時(shí)沿著長(zhǎng)石石英砂巖的原生或次生裂隙運(yùn)移及沉淀。導(dǎo)致侵入巖體和長(zhǎng)石石英砂巖中都富集成礦物質(zhì)。根據(jù)品位×厚度等值線圖表明,Cu品位由礦區(qū)中部向四周逐漸降低,在侵入巖體厚度大的部位品位值較高,說(shuō)明成礦物質(zhì)在侵入巖體中聚集程度較高。綜上所述,通過(guò)對(duì)礦化與其他相關(guān)地質(zhì)體關(guān)系的分析研究,可以看出波龍礦區(qū)中部的深部以及礦區(qū)北東部有找礦潛力,其中,深部找礦存在很大的潛力。
[Abstract]:The duo dragon mine area is located in the west section of the ban Gong Lake Nu River metallogenic belt, with its large scale, variety and high degree of study. The porphyry copper (gold) deposit of the porphyry type is one of the large ore deposits in the duo dragon ore area. On the basis of structural, magmatic rocks and surrounding rock alteration types, the geological elements of the deposit are studied in detail. The orebodies of the PORON mining area mainly occur in the medium acid granodiorite porphyry and the zigzag feldspar quartz sandstone. The active emplacement and gas explosion of the porphyry rocks make the surrounding rock around the surrounding contact zone of the rock mass form a large number of interlaced forms. The net veins fissures provide channels for the migration of mineral formation to deposit minerals in fissure deposits. The mineralization is usually filled with fine veins in fissures and also in the distribution of disseminated mineralization. The mineral types are mainly chalcopyrite, pyrite, and a small amount of porphyry and molybdenite. The geological elements of the deposit are analyzed and analyzed. Through the comprehensive study of the geological elements and the relationship between the deposits, the following understanding is drawn: the ore controlling factors are mainly the granodiorite porphyry, the feldspar quartz sandstone and the fissures developed during the emplacement of the magma. The ore bodies of the mining area are mainly in the middle acidic intrusive rocks. In the feldspar quartz sandstone near the intrusive rocks, the rock and surrounding rock alteration is developed, and the main development of rock and rock is potassium silicate, quartz sericite, chlorite and epidote. The intrusive rocks of the perilong mining area are near erect and elliptical irregular bodies, and the top surface of the rock mass is not flat and uneven. The intrusive rock mass in the mining area is integrated within the control range of the project. There is a trend of North High and central bottom, and the central control thickness is larger in the middle part. The bottom boundary of the rock mass is not controlled in the middle part of the mining area. It is assumed that the center of the magmatic hydrothermal solution is in the middle of the mining area, and the center is moved toward the North West, the North East and the South East, and the center of the hydrothermal fluid accumulation in the middle of the mining area is near the ZK17101 area in the middle of the mining area. The ore body has an irregular flame shape, the plane appears elliptical shape, the whole is east-west, the ore body is heading south, the ore body is top, the bottom is uneven and the relative high difference is large. The ore body is mainly distributed between the 187-155 exploration lines and the north and south direction is mainly distributed between the 02-07 rows. The ore body thickness of the mining area is of the middle thickness and the edge is thin. Characteristics. The surrounding boundary of the ore body has been controlled, only a small amount of ore bodies may be exposed in the eastern part of the mining area, and the deep ore body boundary is not controlled, indicating that there is a great potential for prospecting in the deep part. According to the contour map of the ore body thickness and the contour map of the grade and thickness, the initial gathering place of the ore-forming hydrothermal fluid is the part of the large thickness of the intrusive rock. The later metallogenic hydrothermal fluid is emplacement along the rock fracture, and it is aggregated and precipitated in the rock fracture. When the primary or secondary fissure of the feldspar quartz sandstone is migrated and precipitated, both the intrusive rock mass and the feldspar quartz sandstone are rich in minerals. According to the contour map of the grade and thickness, the grade of Cu is gradually reduced from the middle of the mining area to the surrounding area, and the value of the product position is higher in the area with large thickness of the intrusive rock, indicating that the minerals are intruded in the intrusive rock mass. In summary, through the analysis of the relationship between mineralization and other related geological bodies, it can be seen that the deep part of the central part of the Po long mining area and the northern East of the mining area have the potential for prospecting, and there is a great potential for the deep prospecting.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.41;P618.51

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本文編號(hào)：1950814