| 云南省鹤庆县小天井锰矿的地质特征及盆地控制 |
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| 关键词:ore composition REE patterns carbon and oxygen isotopes superimposed basin contemporaneous faults metallogenic model Xiaotianjing manganese deposit in Heqing |
| 基金项目:全国矿产资源潜力评价项目“云南省锰矿潜力评价”(编号: 1212011121022) |
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| Geological Characteristic and Basin Control of the Xiaotianjing Manganese Ore Deposit in Heqing County of Yunnan Province |
| As the largest manganese deposit in the west of Yunnan Province, the Xiaotianjing manganese ore deposit occurs in clastic rocks of Triassic Songgui Formation. The manganese ore deposit is composed of manganese oxides and carbonate, and the ore composition is rather simple. The carbon and oxygen isotopic characteristics show that the ore-forming materials came from multi-sources and the ore-forming process was characterized by multistage evolution. The distribution model of rare earth elements belongs to enrichment type of the light rare earth elements. The deposit was formed in a secondary superimposed basin in the Lijiang depression belt within the Yanyuan-Lijiang basin of Triassic Nuoli period on the western margin of the Yangtze massif. The basin and the metallogenic activity were controlled by contemporaneous faults. A metallogenic model was established in this paper. |
| LIU Wen-jia,LI Zhi-qun,LIANG Qiu-yuan,CHEN Ming-wei,ZOU Yun-da.2013.Geological Characteristic and Basin Control of the Xiaotianjing Manganese Ore Deposit in Heqing County of Yunnan Province[J].Acta Geoscientica Sinica,34(s1):151-156. |
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