【摘要】：研究區(qū)位于得爾布干成礦帶的東南側(cè),區(qū)內(nèi)火山巖、侵入巖較發(fā)育,具有較好的成礦條件。同處這一成礦帶上的俄羅斯、蒙古國均取得了重大找礦進(jìn)展,我國也發(fā)現(xiàn)了得耳布爾鉛鋅礦、下護(hù)林鉛鋅礦、二道河子鉛鋅礦,八八一銅鉬礦及額仁陶勒蓋銀礦等一批多金屬礦。所以認(rèn)為研究區(qū)具有較大的找礦潛力。本文從地質(zhì)、地球物理、地球化學(xué)等方面詳細(xì)闡述了內(nèi)蒙古自治區(qū)呼倫貝爾市上庫力地區(qū)多金屬成礦條件。詳細(xì)闡述了研究區(qū)地層、構(gòu)造、巖漿巖特征,通過采樣分析確定了研究區(qū)主要地質(zhì)體的巖石化學(xué)特征和年代;通過航磁數(shù)據(jù)解譯和高精度磁法測量工作查明了研究區(qū)主要地質(zhì)體的磁性特征,通過高磁數(shù)據(jù)的求導(dǎo)了解了深部構(gòu)造特征;通過主成礦元素分析確定了研究區(qū)各填圖單位的含礦性,通過地球化學(xué)測量確定了研究區(qū)地球化學(xué)找礦標(biāo)志。同位素年代學(xué)數(shù)據(jù)表明研究區(qū)火山巖形成于晚侏羅至早白堊世,時(shí)代集中,噴發(fā)強(qiáng)度大,研究區(qū)大面積發(fā)育的酸性侵入巖時(shí)代與火山巖相當(dāng)。航空布格重力異常圖顯示研究區(qū)有北東向斷裂通過;航磁和高磁特征可將研究區(qū)劃分為五個(gè)區(qū),構(gòu)造以線型構(gòu)造和環(huán)型構(gòu)造為主,褶皺構(gòu)造不發(fā)育;地球化學(xué)特征顯示研究區(qū)的新元古代佳疙瘩組、中生代中基性火山巖和酸性火山巖為主要的礦源層,侵入巖與火山巖的接觸部位是找礦有利部位。研究區(qū)構(gòu)造發(fā)育,熱液通道暢通,多處可見延伸數(shù)十至數(shù)百米的石英脈,石英脈含螢石。
[Abstract]:The study area is located on the southeast side of the Delbugan metallogenic belt. The volcanic rocks and intrusive rocks in the study area are relatively developed and have better metallogenic conditions. Russia and Mongolia, which are also located in this metallogenic belt, have made significant progress in prospecting. China has also discovered the Deerbur lead-zinc ore, the lower protected forest lead-zinc ore, the Erdaohezi lead-zinc ore. Eight 81 copper and molybdenum ore and Yerren Taulege silver ore and a number of polymetallic ore. Therefore, it is considered that the study area has great prospecting potential. In this paper, the polymetallic metallogenic conditions in Shangkuli area of Hulunbeir City, Inner Mongolia Autonomous region, are described in detail in terms of geology, geophysics and geochemistry. The characteristics of strata, structures and magmatic rocks in the study area are described in detail, and the petrochemical characteristics and ages of the main geological bodies in the study area are determined by sampling and analysis. Through the interpretation of aeromagnetic data and high-precision magnetic survey, the magnetic characteristics of the main geological bodies in the study area are found out, and the deep structural characteristics are obtained by the derivation of the high-magnetic data. The ore-bearing characteristics of the mapping units in the study area were determined by the analysis of the main metallogenic elements, and the geochemical prospecting criteria were determined by geochemical measurement. Isotopic chronological data show that volcanic rocks were formed from late Jurassic to early Cretaceous in the study area with concentrated age and large eruption intensity. The acidic intrusive rocks developed in a large area in the study area were similar to volcanic rocks. Aeronautical Bouguer gravity anomaly map shows that there are NE faults in the study area, aeromagnetic and high magnetic characteristics can be divided into five regions, the structure is mainly linear structure and annular structure, fold structure is not developed. Geochemical characteristics show that the Mesozoic Mesozoic volcanic rocks and acid volcanic rocks are the main source beds in the Neoproterozoic Jiakelin formation in the study area. The contact position between intrusive rocks and volcanic rocks is favorable for ore prospecting. The structure of the study area is developed and hydrothermal channels are open. Quartz veins extending tens to hundreds of meters are found in many places, and quartz veins contain fluorite.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.2

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