| 刘利宝,吕新彪,王巍巍,曹新志.云南大红山铁铜多金属矿床成因分析及成矿方式厘定[J].地质找矿论丛,2018,33(3):382-392 |
| 云南大红山铁铜多金属矿床成因分析及成矿方式厘定 |
| Analysis of genesis and define of metallogenic model of Dahongshan iron copper polymetallic deposit in Yunnan province |
| 投稿时间：2017-12-23 |
| DOI：10.6053/j.issn.1001-1412.2018.03.008 |
| 中文关键词: 大红山铁铜矿床 矿床成因分析 成矿方式厘定 异位沉积 云南省 |
| 英文关键词:Dahongshan iron copper deposit genetic analysis define of the metallogenic model allochthonous deposition Yunnan province |
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| 中文摘要: |
| 前人对云南大红山铁铜多金属矿床成因研究趋向认为属海底火山块状硫化物矿床（VMS型），但对其成矿方式研究还不够精细。对云南大红山铁铜多金属矿床进一步研究表明，虽然该铁铜多金属矿床可归为火山-沉积型矿床，但其成矿方式并非为火山喷出物质在火山机构附近发生"原位沉积"而成矿，其矿床结构特征、围岩蚀变特征、容矿岩性等方面均与原位沉积形成的火山块状硫化物矿床存在显著差异；基于岩相古地理恢复研究，在早元古代曼岗河组沉积时期的大红山地区的特殊古地理环境，使得携载大量矿质的火山物质沿海底隆洼相间的斜坡水道运移而发生"异位沉积"，从而控制了该矿床的形成。 |
| 英文摘要: |
| The previous researches defined Dahongshan iron copper polymetallic deposit in Xinping, Yunnan as a Sedex massive sulfide deposit(VMS) but the the refined study shows that although it is a Sedex ore deposit the material of volcanic eruption is not the "in situ deposition" near the apparatus and it differs from "in situ deposition" in respects of structure, wall rock alteration and lithologies of the host rock. Paleo-petrogeographic reconstruction shows that the special Paleo-petrogeographic environment of the period of Early Proterozoic Manganghe Formation in Dahongshan area resulted in the "allochthonous deposition" of ore material-bearing volcanic eruption along submarine dome-valley slope water courses which controls the deposit. |
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