本文選題：中寨鄉(xiāng)　切入點：十里鋪　出處：《中國地質(zhì)大學(xué)(北京)》2017年碩士論文

【摘要】：甘肅岷縣中寨鄉(xiāng)、十里鋪地區(qū)位于秦嶺造山帶的西段,北接北秦嶺加里東造山帶和祁連山加里東造山帶,南鄰松潘-甘孜印支造山帶,是重要的成礦帶之一。礦區(qū)內(nèi)具有較好的成礦地質(zhì)背景,化探異常強度高。本文在對前人資料收集和分析的基礎(chǔ)上,通過野外區(qū)域地質(zhì)礦產(chǎn)調(diào)查及室內(nèi)的綜合研究,對岷縣中寨鄉(xiāng)、十里鋪地區(qū)區(qū)域地質(zhì)情況、水系沉積物地球化學(xué)特征等進行了全面的研究,得出以下幾點結(jié)論:(1)利用1:50000水系沉積物測量方法對礦區(qū)展開全面的地球化學(xué)工作,對工作區(qū)17種元素在不同地質(zhì)體中的分布形式、元素組合形式、元素富集與分散規(guī)律進行了分析研究。本文查明了工作區(qū)元素富集離散特征及地球化學(xué)空間分布規(guī)律,指出了本區(qū)的主要成礦元素為Au、Sb、As、Ag、Hg。共圈定水系沉積物單元素異常98處,組合異常27處,綜合異常9處,其中甲類綜合異常1個,乙類綜合異常4個,丙類綜合異常4個。并對所有甲、乙類綜合異常及部分丙類綜合異常進行了解釋推斷。(2)根據(jù)本區(qū)地質(zhì)特征,結(jié)合化探異常初步探討了研究區(qū)成礦前景,初步劃定了元山溝-扎馬溝等4處找礦靶區(qū)及4處成礦遠景區(qū)。1處A級找礦靶區(qū)(搖路壩-塢麻橋),2處B級找礦靶區(qū)(元山溝-扎馬溝、窯溝),1處C級找礦靶區(qū)(西溝-草坪梁)。4個成礦遠景區(qū)即元山溝-扎馬溝銻、汞、砷、銅Ⅱ成礦遠景區(qū)、西溝-草坪梁汞、銀Ⅲ級成礦遠景區(qū)、窯溝金、銻Ⅱ級成礦遠景區(qū)、搖路壩-塢麻橋金、銻、汞、砷Ⅰ級成礦遠景區(qū)。
[Abstract]:Zhongzhai Township, Minxian County, Gansu Province, the Shilipu area is located in the western part of the Qinling orogenic belt, the Caledonian orogenic belt in the north Qinling Mountains and the Caledonian orogenic belt in the Qilian Mountains, and the Songpan-Ganzi Indosinian orogenic belt in the south. It is one of the important metallogenic belts. There is a good metallogenic geological background and high intensity of geochemical anomaly in the mining area. Based on the collection and analysis of the previous data, the field regional geological and mineral resources investigation and indoor comprehensive study are carried out in this paper. A comprehensive study of the regional geological conditions and geochemical characteristics of water system sediments in Zhongzhaixiang, Shilipu area, Minxian County has been carried out, and the following conclusions have been drawn: (1: 50 000) the geochemical work of the mining area is carried out by using the 1: 50000 water system sediment survey method. The distribution forms of 17 elements in different geological bodies, the forms of element assemblage, the law of element enrichment and dispersion are analyzed and studied. The discrete characteristics of element enrichment and geochemical spatial distribution in the working area are found out in this paper. It is pointed out that the main ore-forming elements in this area are Auto-SbSbAg-Ag-Hg.There are 98 single element anomalies, 27 assemblage anomalies and 9 comprehensive anomalies in the sediments of the drainage system, of which 1 is a comprehensive anomaly and 4 are a type B comprehensive anomaly. Based on the geological characteristics of the study area, the metallogenic prospect of the study area is preliminarily discussed according to the geological characteristics of the study area. Four ore-prospecting target areas such as Yuanshangou and Zamagou, and 4 ore-forming scenic spots, .1 A-grade prospecting targets (2 B-grade prospecting target areas (Yuanshangou-Zamagou) in Yoluoba-Wumaqiao area, etc., have been preliminarily delineated, and 4 ore prospecting targets (Yuanshangou-Zamagou) have been preliminarily delineated. One C-grade prospecting target area (Xigou-Laogliang). Four metallogenic areas, namely, Yuanshangou-Zamagou antimony, mercury, arsenic, copper 鈪，

本文編號：1658472