A New Method to Quantify Morphology of Pyrite, and Application to Magmatic-Hydrothermal Gold Deposits in Jiaodong Peninsula, China

Yan, Yu Tong; Li, Sheng Rong; Jia, Bao Jian; Zhang, Na; Jiang, Liang; Yan, Li

doi:10.4028/scientific5/amr.446-449.2015

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to previous studies, as the major elements in pyrite, the S and Fe content and S/Fe ratio are closely related to ore genesis [34]. The values of the trace elements of Co/Ni indicate the ore genesis and mineralization [33,35,36], and the Au/Ag ratio reflects the type of ore genesis. Reich et al (2005) studied several gold deposits in the United States and found that the contents of As and Au indicate the occurrence state of gold [37].…”

Section: Discussionmentioning

confidence: 90%

See 1 more Smart Citation

Typomorphic Characteristics of Gold-Bearing Pyrite and Its Genetic Implications for the Fang’an Gold Deposit, the Bengbu Uplift, Eastern China

Wang

Li²,

Zhong

et al. 2022

Minerals

View full text Add to dashboard Cite

The Fang’an quartz-vein gold deposit is located in the eastern part of the Bengbu uplift. The eastern part of the Bengbu uplift is considered to be the western extension of the Zhaoyuan gold mineralization zone in the Jiaodong area of Shandong Province and has huge mineralization potential. The Fang’an deposit was a newly discovered, small-sized gold deposit, and the research in the area is relatively weak. In this study, samples of quartz-vein type ore were collected from the ZK141, ZK1549, and ZK1665 drill holes of the Fang’an gold deposit. Based on the study of the geological characteristics, the major and trace elements of pyrite in different stages were analyzed by electron probe microanalyzer (EPMA), to explore the compositional characteristics of pyrite, the occurrence of gold, and the source of ore-forming fluid. The studies indicate that the deposit experienced four ore-forming stages: the quartz stage, the quartz-pyrite stage, the polymetallic sulfide stage, and the carbonate stage. The pyrites are grouped into three stages, corresponding to the first three ore-forming stages. The EPMA analyses showed that the major elements of pyrite were high Fe and low S, indicating that the formation was hydrothermal. The high content of Ni indicated that the metallogenic materials were derived from between the mantle and the lower crust. The general Co/Ni ratio of >1, with an average of 5.34, indicated that the ore-forming fluid was derived from the magmatic–hydrothermal fluid and wall rock. The Fang’an gold deposit mainly contains nano-gold.

show abstract

Section: Discussionmentioning

confidence: 90%

“…The metamorphic hydrothermal type is rich in Fe and S, and the average content chemical formula is FeS 1.95 . The sedimentary genetic-type (S/Fe > 2) pyrite formula is FeS 2.03 [33,36,48,49].…”

Section: Characteristics Of Fe and S In Pyritementioning

confidence: 99%