Geological and Geochemical Constraints on the Newly Discovered Yangchongli Gold Deposit in Tongling Region, Lower Yangtze Metallogenic Belt

2017 ◽  
Vol 91 (6) ◽  
pp. 2078-2108 ◽  
Author(s):  
Liu'an DUAN ◽  
Huangling GU ◽  
Xiaoyong YANG
Keyword(s):  
Gold Deposit ◽  
Metallogenic Belt ◽  
Lower Yangtze ◽  
Geochemical Constraints

Geochemical constraints on Cu–Fe and Fe skarn deposits in the Edong district, Middle–Lower Yangtze River metallogenic belt, China

2015 ◽  
Vol 64 ◽  
pp. 425-444 ◽  
Author(s):  
Guiqing Xie ◽  
Jingwen Mao ◽  
Qiaoqiao Zhu ◽  
Lei Yao ◽  
Yanhe Li ◽  
...  
Keyword(s):  
Yangtze River ◽  
Metallogenic Belt ◽  
Skarn Deposits ◽  
Lower Yangtze ◽  
Geochemical Constraints

A porphyritic copper (gold) ore-forming model for the Shaxi-Changpushan district, Lower Yangtze metallogenic belt, China: geological and geochemical constraints

2009 ◽  
Vol 53 (5-6) ◽  
pp. 580-611 ◽  
Author(s):  
Xiaoyong Yang ◽  
Xueming Yang ◽  
Zhengwei Zhang ◽  
Yueyu Chi ◽  
Liangfan Yu ◽  
...  
Keyword(s):  
Gold Ore ◽  
Metallogenic Belt ◽  
Copper Gold ◽  
Lower Yangtze ◽  
Geochemical Constraints

scholarly journals Re–Os Pyrite Geochronological Evidence of Three Mineralization Styles within the Jinchang Gold Deposit, Yanji–Dongning Metallogenic Belt, Northeast China

Minerals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 448 ◽  
Author(s):  
Shun-Da Li ◽  
Zhi-Gao Wang ◽  
Ke-Yong Wang ◽  
Wen-Yan Cai ◽  
Da-Wei Peng ◽  
...  
Keyword(s):  
Gold Deposit ◽  
Northeast China ◽  
Gold Mineralization ◽  
Metallogenic Belt ◽  
Isotopic Analyses ◽  
Mantle Sources ◽  
Stage 1 ◽  
Geochronological Evidence ◽  
Gold Bearing

The Jinchang gold deposit is located in the eastern Yanji–Dongning Metallogenic Belt in Northeast China. The orebodies of the deposit are hosted within granite, diorite, and granodiorite, and are associated with gold-mineralized breccia pipes, disseminated gold in ores, and fault-controlled gold-bearing veins. Three paragenetic stages were identified: (1) early quartz–pyrite–arsenopyrite (stage 1); (2) quartz–pyrite–chalcopyrite (stage 2); and (3) late quartz–pyrite–galena–sphalerite (stage 3). Gold is hosted predominantly within pyrite. Pyrite separated from quartz–pyrite–arsenopyrite cement within the breccia-hosted ores (Py1) yield a Re–Os isochron age of 102.9 ± 2.7 Ma (MSWD = 0.17). Pyrite crystals from the quartz–pyrite–chalcopyrite veinlets (Py2) yield a Re–Os isochron age of 102.0 ± 3.4 Ma (MSWD = 0.2). Pyrite separated from quartz–pyrite–galena–sphalerite veins (Py3) yield a Re–Os isochron age of 100.9 ± 3.1 Ma (MSWD = 0.019). Re–Os isotopic analyses of the three types of auriferous pyrite suggest that gold mineralization in the Jinchang Deposit occurred at 105.6–97.8 Ma (includes uncertainty). The initial 187Os/188Os values of the pyrites range between 0.04 and 0.60, suggesting that Os in the pyrite crystals was derived from both crust and mantle sources.

Sign in / Sign up

Export Citation Format

Share Document