| 湖南骑田岭白腊水锡矿床成矿年龄讨论 |
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| 关键词:tin deposit geological characteristics metallogenic epoch Bailashui Qitianling |
| 基金项目:中国地质调查局“华南成矿区成矿规律和找矿方向综合研究” |
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| 摘要: |
| A Discussion on the Ore-forming Age of the Bailashui Tin Deposit in Qitianling, Hunan |
| The Bailashui tin deposit,situated in southern Qitianling rock body of Hunan Province,is a large-size tin deposit discovered in recent years. It consists of forty tin ore veins of such types as the altered rock type of the skarnization fracture zone,the altered rock body type and the porphyry type. In the deposit,the skarnization fracture zone type (No.19 ore vein) is most important. Based on studies of the metallogenic environment of the deposit together with the K-Ar,zircon U-Pb and Rb-Sr age data of the metallogenic area and the Shizhuyuan mining area,it is held that the ore-forming process must have taken place in early Yanshanian period,and that there existed at least two ore-forming stages,with the formation of the No.19 ore vein earlier than that of the No.10 ore vein. |
| CAI Jin-hui,WEI Chang-shan,SUN Ming-hui.2004.A Discussion on the Ore-forming Age of the Bailashui Tin Deposit in Qitianling, Hunan[J].Acta Geoscientica Sinica,25(2):235-238. |
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