| The Geology and Geochemistry of Porphyrite Iron Deposits in the Nanjing_Wuhu Area,Southeast China |
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| 引用本文： | 李文达 匡福祥. The Geology and Geochemistry of Porphyrite Iron Deposits in the Nanjing_Wuhu Area,Southeast China[J]. 中国地球化学学报, 1990, 9(1): 1-26. DOI: 10.1007/BF02837945 |
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| 作者姓名： | 李文达 匡福祥 |
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| 作者单位： | [1]NanjingInstituteofGeologyandMineralResources,MinistryofGeologyandMineralResources,Nanjing,China [2]Nanji,MinistryofGeologyandMineralResources,Nanjing,China |
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| 摘 要： | For the iron deposits occurring in andesitic volcaic rocks of the Lower Yangtze Area.the genetic model for porphyrite iron deposits was proposed by chinese geologists more than ten years ago on the basis of their detailed studies in the Nanjing-Wuhu Basin.It comprises a set of deposits of different genetic types ranging from late magmatic segregation ,ore-magma injection,pneumato-hydatogenetic replacing and hydrothermal filling as well as sedimentary origin.The deposits are closely connected with the gabbro-diorite porphyrite subvolcanic intrusive bodies both in space and in genesis.Miner4alization and wall-rock alteration are consistent with the history of the magmatic evolution.Geochemical studies on trace elements and S,O,Sr isotopes have proved that the porphyrite iron deposits are of magmatic origin,The proposed model may be applied to iron ores associated with andesitic volcanites,for example,in Chile,Mexico,Pakistan,Turkey,etc.
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| 关 键 词： | 地球化学 玢岩 铁矿床 硫同位素 锶同位素 氧同位素 南京地区 武汉地区 |
The geology and geochemistry of porphyrite iron deposits in the Nanjing-Wuhu area,Southeast China |
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| Li Wenda,Kuang Fuxiang. The geology and geochemistry of porphyrite iron deposits in the Nanjing-Wuhu area,Southeast China[J]. Chinese Journal of Geochemistry, 1990, 9(1): 1-26. DOI: 10.1007/BF02837945 |
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| Authors: | Li Wenda Kuang Fuxiang |
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| Affiliation: | (1) Nanjing Institute of Geology and Mineral Resources, Ministry of Geology and Mineral Resources, Nanjing, China |
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| Abstract: | For the iron deposits occurring in andesitic volcanic rocks of the Lower Yangtze Area, the genetic model for porphyrite iron deposits was proposed by Chinese geologists more than ten years ago on the basis of their detailed studies in the Nanjing-Wuhu Basin. It comprises a set of deposits of different genetic types ranging from late magmatic segregation, ore-magma injection, pneumato-hydatogenetic replacing and hydrothermal filling as well as sedimentary origin. The deposits are closely connected with the gabbrodiorite porphyrite subvolcanic intrusive bodies both in space and in genesis. Mineralization and wall-rock alteration are consistent with the history of the magmatic evolution. Geochemical studies on trace elements and S, O, Sr isotopes have proved that the porphyrite iron deposits are of magmatic origin. The proposed model may be applied to iron ores associated with andesitic volcanites, for example, in Chile, Mexico, Pakistan, Turkey, etc. |
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