| 山东三甲金矿的矿体变化特征及其找矿意义 |
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| 引用本文：.1998.Variation of gold orebodies in the Sanjia gold deposit, Shangdong Province, and its ore-prospecting significance[J].Mineral Deposits,17(2):165~171 |
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| 基金项目:中国科学院“九五”重大黄金项目（KY95-2-2） |
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| 中文摘要:通过对乳山中东部地区金矿体侧伏规律的研究，发现金矿体在NNE方向上呈北轭，在NE方向上则一致。根据这一规律，指出三甲金矿矿体深部应向南侧伏。通过对矿体产状变化的观察，指出矿体在走向上具明显的近等间距膨缩现象，膨缩距在160~180 m之间。金矿体厚度等值线呈波状变化，其波峰的连线走向为NNW 351°，波峰的侧伏角为45°。往-306 m中段以下，矿体厚度向南向下有变大的趋势。基于以上的认识，提出了三甲金矿的深部预测意见。 |
| 中文关键词:三甲金矿，矿体变化，矿体侧伏，波状变化 |
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| Variation of gold orebodies in the Sanjia gold deposit, Shangdong Province, and its ore-prospecting significance |
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| Abstract:Located in Rushan City of Shandong Province, the Sanjia ore deposit is an auriferous calcite (1uartz vein type gold deposit, with the depth of its orebodies controlled by boreholes and galleries being 150~304 m. A study of the plunging regularity of the gold orebodies in central and eastern part of Rushan has revealed that gold orebodies are conjugate in NNIZ direction and concordant in NE direction. According to this regularity, it is pointed out that the orebodies of the Sanjia gold deposit must plunge southward at depth; an observation of the variation in attitude of the orebodies has also demonstrated that the gold orebodies obviously dilate and shrink isometrically, with the dilating-shrinking distance being 160~180 m. The thickness contours of an orebody assume wavy variation, with the connecting line of wave peaks striking NNW 350°, and the plunging angle of the wave peaks being 450. Beneath the level of -306 m. the thickness of orebodies tends to enlarge southward and downward. Based on the above understanding, the authors put forward their suggestions concerning the prognostic work at the depth of the Sanjia gold deposit. |
| keywords:Sanjia gold deposit, variation of gold orebody, wavy variation |
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