Jiuhua Xu, Xuelei Chu, YulingXie, Fenglei Bie, and Dayi Qian, Study on Sulfide-melt Inclusions in Mantle Xenoliths of Xinchang, Zhejiang, J. Univ. Sci. Technol. Beijing, 7(2000), No. 1, pp. 5-9.
Cite this article as:
Jiuhua Xu, Xuelei Chu, YulingXie, Fenglei Bie, and Dayi Qian, Study on Sulfide-melt Inclusions in Mantle Xenoliths of Xinchang, Zhejiang, J. Univ. Sci. Technol. Beijing, 7(2000), No. 1, pp. 5-9.
Jiuhua Xu, Xuelei Chu, YulingXie, Fenglei Bie, and Dayi Qian, Study on Sulfide-melt Inclusions in Mantle Xenoliths of Xinchang, Zhejiang, J. Univ. Sci. Technol. Beijing, 7(2000), No. 1, pp. 5-9.
Citation:
Jiuhua Xu, Xuelei Chu, YulingXie, Fenglei Bie, and Dayi Qian, Study on Sulfide-melt Inclusions in Mantle Xenoliths of Xinchang, Zhejiang, J. Univ. Sci. Technol. Beijing, 7(2000), No. 1, pp. 5-9.
University of Science and Technology Beijing, Beijing 100083, China
China University of Geosciences, Beijing 100083, China
The Research Center of Mineral Resources Exploration, Chinese Academy of Sciences, Beijing 100101, China
Institute of Geology, Chinese Academy of Sciences, Beijing 100029, China
中文摘要
In minerals of mantle xenoliths captured within Tertiary alkali-basalt from Xinchang, Zhejiang province, China, many sulfidemelt inclusions were found by the observation of polished thin section. Electron microprobe analysis has been applied to detect the components of sulfide-melt inclusions. The result shows that the sulfide phases of inclusions are mainly pentlandite, and secondarily pyrrhotite, The molar ratio of Ni to Fe, rNi/rFe, of mineral phases in sulfide inclusions is related to olivine contents in host mantle xenoliths. The rNi/rFe, of sulfides from Xinchang samples has a possitive correlation to r(Fe+Ni)/rS. The r(Fe+Ni)/rS, becomes higher with the increasing of rNi/rFe In single sulfide-melt inclusions, rNi/rFe, r(Fe+Ni)/rS and Ni contents increase from the center to edge, reflecting a result of different cooling speed in an inclusion. A comparison between the data from Hannuoba, West Eifel of Germany and Nograd-Gomor of east Europe suggests that the composition of the inclusions is different for each area, which indicated that a regional differentiation of sulfide in mantle fluids.
In minerals of mantle xenoliths captured within Tertiary alkali-basalt from Xinchang, Zhejiang province, China, many sulfidemelt inclusions were found by the observation of polished thin section. Electron microprobe analysis has been applied to detect the components of sulfide-melt inclusions. The result shows that the sulfide phases of inclusions are mainly pentlandite, and secondarily pyrrhotite, The molar ratio of Ni to Fe, rNi/rFe, of mineral phases in sulfide inclusions is related to olivine contents in host mantle xenoliths. The rNi/rFe, of sulfides from Xinchang samples has a possitive correlation to r(Fe+Ni)/rS. The r(Fe+Ni)/rS, becomes higher with the increasing of rNi/rFe In single sulfide-melt inclusions, rNi/rFe, r(Fe+Ni)/rS and Ni contents increase from the center to edge, reflecting a result of different cooling speed in an inclusion. A comparison between the data from Hannuoba, West Eifel of Germany and Nograd-Gomor of east Europe suggests that the composition of the inclusions is different for each area, which indicated that a regional differentiation of sulfide in mantle fluids.
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