| 穆新华,赵文川.甘肃岷县马坞金矿区成矿机制及找矿方向研究[J].地质找矿论丛,2011,26(3):272-276 |
| 甘肃岷县马坞金矿区成矿机制及找矿方向研究 |
| Study on metallogenic mechanism and ore searching direction in Mawu gold ore area,Minxian county, Gansu province |
| 投稿时间：2011-07-15 |
| DOI：10.6053/j.issn.1001-1412.2011.3. 006 |
| 中文关键词: 马坞金矿床 成矿机制 找矿方向 甘肃省 |
| 英文关键词:Mawu gold deposit metallogenic mechanism ore searching dirction Gansu province |
| 基金项目:武警黄金指挥部黄金专项项目资助 |
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| 中文摘要: |
| 马坞金矿产于岷礼成矿带西段中川岩体的西北外接触带,金矿的成矿主要受马坞背斜的控制。矿区共发现金矿脉7条,其中北矿带的1号、7号、8号脉的工作程度较高,圈定了金的资源量。南矿带的2号、3号、4号脉的厚度较大,但品位相对较低。通过该区成矿地质事件序列及成矿机制的研究认为,位于马坞背斜南翼的南矿带从成矿物质来源、成矿构造等方面都没有马坞背斜北翼的北矿带有利,所以仍应把找矿重点地段放在北矿带。 |
| 英文摘要: |
| Mawu gold ore area is located at northwest outer contact of Zhongchuan intrusion in the west Min-Li ore belt.Gold ore is mainly controlled by Mawu anticline.In the gold ore area 7 auriferous quartz veins are discovered.Auriferous quaetz vein 1,7 and 8 in the the north ore zone are controlled by workings in higher degree and the gold resource volume is determined.Auriferous quartz vein 2,3 and 4 in the south ore zone are in big thickness with relatively lower gold grade and the south zone is generally considered more potential.Study on geological and metallogenic event sequence and the metallogenic mechanism shows that the north zone in the north limb of Mawu anticline is more favorable in ore material source,ore-hosting structure etc.than the south zone in the south limb and the exploration should be focused on the north zone. |
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