地质学报Issue(8):1485-1493,9.
硫镍钴矿--一种新发现的载金矿物
Siegenite:A New Gold-Bearing Mineral
摘要
Abstract
Jinchang Cu-Ag deposit is a super-large scale porphyry Cu-Au deposit in Northeastern China.No.J-0 is a typical porphyry Cu-Au ore body in the deposit.There are three gold-bearing minerals in the J-0 ore body:siegenite,pyrite and chalcopyrite.Major element of the siegenite are Ni,Co and S.Ni constitutes 19.005%~28.14%,Co constitutes 26.877%~34.971% and S constitutes 40.242%~44.076% in the Siegenite.The atomic mol ratio of Ni/Co is 0.55~1.03,close to the theoretical value (Ni/Co≈1).The atomic mol ratio of(Ni,Co)/S is 0.68~0.74,tallying with the theoretical value [(Ni,Co)/S= 0.75],and the crystal chemical molecular formula is coincides with(Ni,Co)3 S4 .The purity of natural gold is high in the siegenite,between 830 and 955.As a gold-bearing mineral,it was the first time to discover siegenite in the Jinchang mining areas and gold deposits in China.It is also a rare finding for gold deposits throughout the world.By far,there are no related reports.The discovery in the Jinchang gold area has important factual and geological meaning,and made the discovery that siegenite is a new gold-bearing mineral,and it was found for the study and improvement of gold mineralization theory provides key evidence.关键词
金厂/铜金矿床/斑岩型/载金矿物/硫镍钴矿Key words
Jinchang/Cu-Au deposit/porphyry style/gold-bearing mineral/siegenite引用本文复制引用
赵玉锁,杨立强,卿敏,闫家盼,郭晓东,朝银银,邱昆峰,王景瑞..硫镍钴矿--一种新发现的载金矿物[J].地质学报,2014,(8):1485-1493,9.基金项目
全国危机矿山接替资源找矿项目(编号20089925)、教育部新世纪优秀人才支持计划(编号 NCET-09-0710)、高等学校学科创新引智计划(编号 B07011)、教育部长江学者和创新团队发展计划(编号 IRT0755)和黄金指挥部黄金工作专项业务费项目(编号 HJY12-03)资助。 ()