安徽铜陵矿集区斑岩型铜钼金矿床地质特征及成矿背景2016.pdfVIP

1000-0569 /2016 /032 (02)-0351-68 Acta Petrologica Sinica 岩石学报 安徽铜陵矿集区斑岩型铜钼金矿床地质特征及 * 成矿背景 子 1 晓 1＊＊ 林 2 俊1 巧 1 范 良 徐 春 陈 杰 何 谢 勤 FAN ZiLiang1 ，XU XiaoChun1 ＊＊ ，CHEN LinJie2 ，HE Jun1 and XIE QiaoQin1 1. 合肥 ， 230009 工业大学资源与环境工程学院 合肥 2. 321 ， 244033 安徽省地质矿产勘查局 地质队 铜陵 1. School of Ｒesources and Environmental Engineering ，Hefei University of Technology ，Hefei 230009 ，China 2. Geological 321 Team，Bureau of Geology and Mineral Ｒesources Exploration of Anhui Province ，Tongling 244033 ，China 2015-01-01 收稿，2015-03-20 改回. Fan ZL ，Xu XC ，Chen LJ ，He J and Xie QQ. 2016. The geological features and metallogenic setting of the porphyry :351 － 368 copper-molybdenum-gold deposits in Tongling ore district ，Anhui Province. Acta Petrologica Sinica ，32 (2) Abstract Tongling ore district is very famous in the world for its skarn deposits in large scale and quantity. As an important penetration of the ore prospecting in recent years ，several porphyry deposits were successively discovered. In this paper ，three porphyry deposits from Tongling ore district are chose to study. Based on the detailed field geology and indoor microscopic observation as well as systematical ore geological and geochemical studies ，the geological features of the porphyry deposits and their metallogenic geological setting are recognized. It is suggested that the ore-bearing intrusions are high-K calc-alkaline association with high Al ，Sr and LＲEE ， which is similar to the geochemical signatures of adakite. The ore-bearing intrusions are fine-middle grained texture ，seldom porphyritic texture ，which implies the intrusions intruded in middle-