【摘要】：大巴山地區(qū)跨秦嶺、揚(yáng)子兩個(gè)一級(jí)構(gòu)造單元,基于1:5萬(wàn)水系沉積物測(cè)量成果,統(tǒng)計(jì)計(jì)算了成礦元素地球化學(xué)參數(shù),分析研究了元素分布特征、元素相關(guān)性及異常元素組合特征,認(rèn)為研究區(qū)Pb、Zn、Ba、Cu、Mn找礦潛力較大,推斷研究區(qū)所在的秦嶺構(gòu)造單元成礦類型主要為與震旦系—下寒武統(tǒng)黑色巖系有關(guān)的低溫?zé)嵋轰\銅礦和沉積型鋇礦;研究區(qū)所在的揚(yáng)子構(gòu)造單元成礦類型主要為與寒武系碳酸鹽地層有關(guān)的低溫?zé)嵋恒U鋅礦和與震旦系碳酸鹽巖有關(guān)的沉積型錳礦;在此基礎(chǔ)上,劃分出楊家坪—葛洞鋇鋅成礦遠(yuǎn)景區(qū)、鎮(zhèn)坪鋇鋅成礦遠(yuǎn)景區(qū)、黃安壩—迷魂陣鋅銅成礦遠(yuǎn)景區(qū)、百羊坪鉛鋅成礦遠(yuǎn)景區(qū)和修齊鎮(zhèn)—石坊鄉(xiāng)錳成礦遠(yuǎn)景區(qū)。
[Abstract]:Based on the results of 1: 50 000 stream sediment survey, geochemical parameters of ore-forming elements are calculated statistically and the distribution characteristics of elements are analyzed and studied in Dabashan area, which are two primary tectonic units across Qinling and Yangzi. The correlation of elements and the characteristics of abnormal element assemblage indicate that the prospecting potential of Pb,Zn,Ba,Cu,Mn in the study area is great. It is concluded that the ore-forming types of Qinling tectonic unit in the study area are mainly low-temperature hydrothermal zinc-copper ore and sedimentary barium ore related to the Sinian-Lower Cambrian black rock series. The metallogenic types of Yangtze tectonic units in the study area are mainly low-temperature hydrothermal Pb-Zn deposits related to Cambrian carbonate strata and sedimentary manganese deposits related to Sinian carbonate rocks. On this basis, it is divided into Yangjiaping-Gedong barium-zinc metallogenic prospect, Zhenping barium-zinc metallogenic prospect, Huanganba-ecstasy zinc-copper metallogenic prospect, Baiyangping lead-zinc metallogenic prospect and Xiuqi town-Shifang township manganese metallogenic prospect.
【作者單位】： 武漢地質(zhì)礦產(chǎn)研究所;中國(guó)地質(zhì)大學(xué)研究生院;
【基金】：中國(guó)地質(zhì)調(diào)查局地質(zhì)調(diào)查項(xiàng)目(1212010981042;12120113068000)資助~~
【分類號(hào)】：P632.3

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