| 豆松,刘继顺,郭远生,陈明伟,梁秋源.云南炉坪铅多金属矿床地质特征及找矿方向[J].矿产勘查,2013,4(4):364-372 |
| 云南炉坪铅多金属矿床地质特征及找矿方向 |
| Geological characteristics of Luping poly-metallic lead deposit and prospecting potential in the Heqing area, Yunnan |
| 投稿时间：2012-03-05 |
| DOI： |
| 中文关键词: 炉坪铅多金属矿床 地质特征 找矿方向 鹤庆 云南 |
| 英文关键词: Luping poly-metallic lead deposit geological characteristics prospecting targets Heqing Yunnan |
| 基金项目:云南省三年地质找矿行动计划项目(编号:Z201004)资助。 |
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| 中文摘要: |
| 云南鹤庆炉坪铅多金属矿床是新发现的一个大型隐伏矿床,位于北衙超大型金多金属矿床北部,属北衙金多金属矿田斑岩—热液成矿体系的组成部分,是该成矿体系中的新类型矿床。对比北衙矿区的成矿特点,认为在北衙向斜构造的轴部应该存在构造薄弱地带,能够为万硐山正长斑岩成矿体系中的成矿流体运移提供通道和赋存空间,同时结合良好的Pb-Au-Ag-Zn-Cu-As-Sb组合异常显示,通过钻探验证而发现的铅多金属隐伏矿床。矿体沿中三叠统北衙组灰岩与下三叠统青天堡组砂泥岩层间及中三叠统北衙组灰岩内层间破碎带产出,已探获铅金属量大于80万t,金金属量近20 t,银金属量大于1000 t、锌金属量大于11万t。文章在总结矿区地质特征的基础上,指出了新的找矿方向。 |
| 英文摘要: |
| The Luping poly-metallic lead deposit is a large-scale sized concealed deposit discovered recently in the Heqing area, Yunnan. It is located at the north of Beiya super-large sized poly-metallic gold deposit, and is an integrated part of Beiya porphyry-hydrothermal mineralization system, it belongs a new deposit style. On the basis of studying the regional geological conditions and comparing with the metallogenetic characteristics of Beiya gold deposit, guiding by the exploration clue that the weak structures are located in the axes of Beiya syncline, which can provide the pass way and space for the mineralization fluid from the Wandongshan synite mineralization system, in combination of the strong geochemical anomaly of Pb-Au-Ag-Zn-Cu-As-Sb elements in the area, then the test drilling was conducted and the Luping poly-metallic lead deposit was discovered. The orebodies occur in the interlayer fractures between the limestone of Middle Triassic Group Beiya Formation and the sandy mudstone of Lower Triassic Qingtianpu formation, as well as the interlayer fractures within the limestone of Middle Triassic Group Beiya Formation. Currently the estimated deposit resource tonnage is more than 800,0 tons of lead metal, 1,0 tons of silver metal, 110,0 tons of zinc metal and near 20 tons of gold metal. Finally the authors proposed the prospecting targets in the deposit area and that will be very helpful for further exploring in the mineralizing zone. |
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