Multistage pyrite in the Getang sediment-hosted disseminated gold deposit, southwestern Guizhou Province, China: Insights from textures and in situ chemical and sulfur isotopic analyses

2018 ◽  
Vol 99 ◽  
pp. 1-16 ◽  
Author(s):  
Xinlu Hu ◽  
Yongjun Gong ◽  
Guoping Zeng ◽  
Zhenjie Zhang ◽  
Jian Wang ◽  
...  
Keyword(s):  
Gold Deposit ◽  
Guizhou Province ◽  
Southwestern Guizhou ◽  
Isotopic Analyses ◽  
Southwestern Guizhou Province

scholarly journals Iron Isotope Constraints on the Mineralization Process of Shazi Sc-Rich Laterite Deposit in Qinglong County, China

Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 737
Author(s):  
Jun Sun ◽  
Yunlong Liu ◽  
Xiqiang Liu
Keyword(s):  
Large Scale ◽  
Isotope Composition ◽  
Guizhou Province ◽  
Iron Isotope ◽  
Fe Content ◽  
Southwestern Guizhou ◽  
Southwestern Guizhou Province ◽  
Hydrolysis Of ◽  
Range Of Variation

The Shazi deposit is a newly discovered, potential large-scale scandium deposit located in Qinglong, southwestern Guizhou Province, China. The iron isotopic composition of magnetite in fresh basalt, weathered basalt, and mineralized laterite was investigated. The Fe content of fresh basalt and of weathered basalt vary from 15.41 wt.% to 15.51 wt.% and from 14.60 wt.% to 15.12 wt.%, respectively, while the δ56Fe of magnetite varies from 0.23‰ to 0.29‰ and from 0.02‰ to 0.07‰. Laterite has the highest Fe content, in the range of 23.53%~28.95%, but δ56Fe is similar to weathered basalt, and the range of variation is −0.09‰–0.03‰. The change in iron isotope composition in weathered basalt and laterite is related to the hydrolysis of clinopyroxene. Combined with the existing research results, the genesis of scandium deposit is considered to be related to in situ hydrolysis in deep and surface weathering leaching of Emeishan basalt.

Contribution to the knowledge of the cavernicolous beetle genus Aspidaphaenops Uéno from Guizhou (Coleoptera: Carabidae: Trechinae)

Zootaxa ◽  
2018 ◽  
Vol 4422 (2) ◽  
pp. 244 ◽  
Author(s):  
MINGYI TIAN ◽  
SUNBIN HUANG
Keyword(s):  
New Species ◽  
Southwest China ◽  
Ground Beetle ◽  
Guizhou Province ◽  
New Information ◽  
Southwestern Guizhou ◽  
Two New Species ◽  
Southwestern Guizhou Province ◽  
Male Genital

The hypogean ground beetle genus Aspidaphaenops Uéno, 2006 is reviewed. Some new information of A. reflexus Uéno, 2006 is provided, including the male genital characteristics as well as a new locality. Two new species are described and illustrated from southwestern Guizhou Province, southwest China: A. xiongda n. sp. (Guizhou: Anlong: Fengyan Dong), A. dudou n. sp. (Guizhou: Xingyi: Xiaozi Dong). A key to all Aspidaphaenops species is also provided. 

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