| 王玉往,王莉娟,张会琼,廖震,龙灵利.内蒙古大井矿床之找矿新类型探索[J].矿产勘查,2010,1(1):33-38 |
| 内蒙古大井矿床之找矿新类型探索 |
| Quest for new prospecting type on the Dajing deposit, Inner Mongolia |
| 投稿时间：2009-10-25 |
| DOI： |
| 中文关键词: 新找矿类型 斑岩型 大井 内蒙古 |
| 英文关键词: New prospecting type porphyry type Dajing Inner Mongolia |
| 基金项目:中国地质调查局危机矿山项目(编号:200699105)资助。 |
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| 中文摘要: |
| 内蒙古大井锡多金属矿床为一与岩浆作用有关的热液脉状矿床,寻找“岩体型”矿化一直是众多地质学家关注和期望的梦想。文章结合新近取得的研究成果,探讨了大井矿区可能存在“岩体型”矿化。指出矿区西部广泛发育的细脉浸染状矿化和面型蚀变明显不同于矿区其他区段的脉状矿化和线型蚀变,可能为一新的矿化类型。根据硫化物微量元素和流体包裹体特征推测,可能接近斑岩型矿化。该区似斑岩型矿化的识别,除了对更深部存在矿化新类型具有指示意义之外,还表明在现在矿区范围以西寻找“第二个大井”具有广阔前景。 |
| 英文摘要: |
| Dajing tin-polymetallic deposit, Inner Mongolia, belongs to a hydrothermal vein-type deposit related to magmatism. Searching for “rockbody-type” mineralization in the deposit is been attention and expectation by most geologist all the while. Based on the recent study result, this paper discusses the possible “rockbody-type” mineralization in the Dajing mine area. It points out that the extensive veinlet-dissemiated mineralization and planar-shape wallrock alteration in the western part of Dajing mine area may belong to a new metallogenic type distincted by vein-type mineralization and linear-shape alteration from another area of Dajing. This set of mineralization-alteration may ascribe to porphyry-like type evidenced by trace elements of sulfide and fluid inclusion. Identification of new type mineralization not only indicates the possible porphyry type mineralization existing in deep, but also suggests that western area of present ore district may have favourable prospecting potential. |
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