| 张万良,李子颖.赣南九龙嶂火山盆地铀矿地质特征与成矿条件分析[J].地质找矿论丛,2004,(3):191-195 |
| 赣南九龙嶂火山盆地铀矿地质特征与成矿条件分析 |
| STUDY ON GEOLOGICAL CHARACTERISTICS AND MINERALIZATION CONDITIONS OF U-DEPOSITS IN JIULONGZHANG VOLCANIC BASIN IN SOUTHERN JIANGXI PROVINCE |
| 投稿时间：2003-11-12 修订日期：2004-04-08 |
| DOI：10.6053/j.issn.1001-1412.2004.3. 010 |
| 中文关键词: 基底碱交代 浅成岩浆活动 银坑山矿点 九龙嶂盆地 赣南 |
| 英文关键词:basement alkalic metasomatism bypabyssal-ultrabypabyssal magmatic activity Yinkengshan ore spot Jiulongzhang Basin the south Jiangxi province |
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| 中文摘要: |
| 九龙嶂火山盆地位于南岭成矿带安远热隆的西部,面积120余km2,盆地基底为元古代变质岩,盖层为上侏罗统鸡笼嶂组火山岩系。在盆地边缘火山岩中分布3个铀矿点或矿化点。其中银坑山矿点受发育于流纹质熔结凝灰岩中的近SN向碎裂带控制。盆地基底岩石碱交代蚀变明显,火山期后浅成 超浅成侵入岩浆活动频繁,火山构造与区域线性构造交接复合并形成派生构造,使盆地具有良好的铀矿形成的源 运 聚条件。盆地南(东)部银坑山一带是找矿方向和勘查重点所在。 |
| 英文摘要: |
| Jiulongzhang volcanic basin, about 120km2, is situated in the western part of "Anyuan Hot Doming" in Nanling mineralization belt. The basin basement consists of Caledonian-Yinsanian granites and Proterozoic metamorphic rocks, and the cover bed is the volcanic rock of Jinlongzhang formation of Late Jurassic.There are three U-ore spots in the edge of the basin. The Yinkengshan ore spot occurs in SN-trending cataclastic zones in rhyoignimbrites. Based on the study of the basement alkalic metasomatism, post（volcanic） hypabyssal-ultrahypabyssal magmatic activity and intersect features of volcanic tectonics and lineament structures, the anthors consider that this basin has good uranium mineralization conditions of "Source-Migration-Concentration". The Yinkengshan area of the SE part of the volcanic apparatus, having good surface and deep mineralization messages, is an uranium ore exploration target. |
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