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Gold Science and Technology >

2018 , Vol. 26 >Issue 4: 481 - 491

DOI: https://doi.org/10.11872/j.issn.2095-4050.000000000000

Characteristics of Pyrite from Huaishuping Gold Deposit in Xiong’ershan District and Its Geological Significance

  • Leilei ZHANG 1 ,
  • Jing ZHANG , 1 ,
  • Qisong WANG 1 ,
  • Liang CHEN 2 ,
  • Xu’an CHEN 1
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  • 1School of Earth Sciences and Resources，China University of Geosciences，Beijing 100083，China
  • 2Minmetals Exploration & Development Co.，Ltd.，Beijing 100010，China

Received date: 2018-04-18

  Revised date: 2018-07-07

  Online published: 2018-10-17

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Abstract

Huaishuping gold deposit is located in the Xiong’ershan district，southern margin of the North China Craton.It is hosted by the Mesoproterozoic volcanic rocks of Xiong’er Group.The occurrence of gold orebodies is controlled by faults.Its ore types are altered rock and quartz vein，and the major metal minerals are pyrite，galena，sphalerite and chalcopyrite.The hydrothermal ore-forming process can be divided into three stages：quartz-pyrite vein （early），quartz-polymetallic vein （middle） and quartz-calcite vein （late）.In the early stage，pyrites are euhedral granular，with size of 0.8~2.0 mm；in the middle stage，they are subhedral and xenomorphic granular of 0.30~0.45 mm；and in the late stage，pyrite is euhedral-subhedral granular，and the particle size is 0.1~3.0 mm.The electron microprobe analysis showed that S element content in the pyrite was 51.25%~52.71%，and Fe element content was 45.78%~48.11%.The Cu，Zn and Sb elements content of pyrites in the middle stage were 0.108%，0.131% and 0.115% respectively.TheδFe andδS plot of major elements and the Co-Ni-As triangular diagram of pyrites study shows that the source of ore-forming fluid in Huaishuping gold deposit is medium-low temperature metamorphic hydrothermal fluid.

Key words： pyrite; typomorphic characteristics; electron microprobe; Huaishuping gold deposit; Xiong’ershan district; western Henan

Cite this article

Leilei ZHANG , Jing ZHANG , Qisong WANG , Liang CHEN , Xu’an CHEN . Characteristics of Pyrite from Huaishuping Gold Deposit in Xiong’ershan District and Its Geological Significance[J]. Gold Science and Technology, 2018 , 26(4) : 481 -491 . DOI: 10.11872/j.issn.2095-4050.000000000000

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