| 云南大理—弥渡笔架山金矿找矿前景分析 |
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| 关键词:geological setting ore-searching prospect structural conditions magmatic rock conditions Bijiashan Dali-Midu |
| 基金项目:云南省3年找矿行动计划“宾川小龙潭—祥云马厂箐铜钼金多金属矿整装勘查项目”之“云南省大理—弥渡笔架山金矿普查”项目(编号: 201100023) |
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| 摘要: |
| An Prospective Analysis of Ore-searching Work in the Bijiashan Gold Deposit in Dali-Midu Area, Yunnan Province |
| The ore district is located in the southern part of the eastern Tibet-western Yunnan metallogenic belt and the transitional position between the Yangtze metaplatform and the Sanjiang folded belt, belonging to the southern part of the Lijiang platform-marginal folded belt and lying in the inverted triangular area sandwiched between Jinshajiang-Ailaoshan deep fault and Chenghai deep fault. The strata exposed in the ore district include limestone of Lower Devonian Qingshan Formation, dolomitic limestone of Kanglang Formation and Lower Ordovician quartz sandstone, whereas the magmatic rocks include granite porphyry, monzonitic porphyry, lamprophyre and diabase. The authors analyzed the ore-searching prospect from such factors as geotectonic environment, geophysical conditions, geochemical conditions, remote-sensing images, and structural and magmatic conditions of the ore district, with a comparison between Beiya area and Machangqing area. It is pointed out that there exists the possibility of finding Beiya type and Machangqing type Cu, Mo polymetallic deposits in the study area. |
| WANG Wen-chao,ZHANG Jin-xue,LIU Li-chao,TANG Yong-kun,LIU Xiao-jin.2013.An Prospective Analysis of Ore-searching Work in the Bijiashan Gold Deposit in Dali-Midu Area, Yunnan Province[J].Acta Geoscientica Sinica,34(s1):108-114. |
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