| 刘建华,燕宁,陈玉华,李保平,蔡岩萍.青海松树南沟金矿成矿地质特征及外围找矿前景分析[J].矿产勘查,2011,2(3):260-264 |
| 青海松树南沟金矿成矿地质特征及外围找矿前景分析 |
| Geological features and surrounding prospecting prospects of gold deposit in Songshunangou, Qinghai |
| 投稿时间：2010-04-13 |
| DOI： |
| 中文关键词: 成矿条件 外围找矿 松树南沟金矿 青海 |
| 英文关键词: metallogenic conditions prospecting for surrounding area Songshunangou gold deposit Qinghai |
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| 摘要点击次数: 1977 |
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| 中文摘要: |
| 文章在分析松树南沟金矿床成矿地质背景和地质特征的基础上,提出该区外围找矿具有一定的潜力,即:该矿处在北祁连优地槽东段南侧,受北西向达板山深断裂带及其派生的次级断裂构造和层间挤压破裂带的控制。区内与成矿有关的岩浆活动主要以加里东晚期侵入形成的闪长岩和海西期侵入形成的花岗闪长斑岩为主,其中与金矿体关系密切的岩体沿细碧玢岩层间破碎带侵入,多呈脉状、透镜状穿插于细碧玢岩中。其中西矿区金矿产于第一喷发旋回底部细碧玢岩与斑状花岗岩的内外接触带中,控制矿体长300 m,矿体产状与围岩一致。东矿区产于第一喷发旋回中的石英角斑凝灰岩中,下部原细碧玢岩层位未发现具工业意义的金矿矿体,控制矿体长400 m,垂深280~347 m。 |
| 英文摘要: |
| In the article, the authors analyzed the geological background and geological features of Songshunangou gold deposit, proposed prospecting in the surrounding area has a great potential. The mine occured in the southeast of eugeosyncline in Beiqilian and it is controlled by the Dabanshan fault and its secondary faults, compression fracture zone between layers. The magmatic activity with mineralization-related in this area has diorite formed in the late Caledonian and granodiorite formed in Hercynian. The rock which was closely related with the ore bodies occurred along the fracture zone between the spilite porphyrite intrusive rocks, mostly showed a vein, lenticular interspersed in the spilite porphyrite. The West gold orebody was located, consistently with the surrounding, at the contact zone between the bottom of spilite and porphyritie of in the first eruption cycle and granite porphyry. The controlled ore body was 300 meters in length. The East gold orebody occurred in the tuff of first eruption cycle. The controlled ore body is 400 meters in length and 280~347 meters in vertical depth. There is no commercial orebody discovered in the lower part of the pilite porphyrite rock. |
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