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Ore Genesis and Metallogenic Model of the Yu'erya Gold Deoposit, Eastern Hebei Province, China
Author(s) -
LIU Chunhua,
NIE Fengjun
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12383_11
Subject(s) - chinese academy of sciences , beijing , china , citation , library science , political science , history , computer science , archaeology
In the North China Craton (NCC), hundreds of gold deposits are distributed in three main provinces: Xiaoqinling, Jiao–Liao, and Yan–Liao (Hart et al., 2002; Yang et al., 2003). The majority of gold deposits in the NCC are hosted by Mesozoic (mainly Late Jurassic to Early Cretaceous) granitoids or, less commonly, by basement rocks adjacent to the granitoids (Goldfarb et al., 2014; Yang et al., 2003). Consequently, many geologists have suggested that the ores are of magmatic origin (e.g., Hart et al., 2002). The gold mineralization occurs either in quartz veins or as bodies of disseminated gold and stockwork-type veins along altered shear zones that follow the boundary between the granitoids and the Archean metamorphic rocks (Goldfarb et al., 2014; Yang et al., 2003). The important Yu’erya gold deposit was discovered in 1887. It is located about 25 km SE of Kuancheng Manchu Nationality Autonomous County, Hebei Province. Up until December 31, 2010, total reserves of about 65 tons gold with a mean gold grade of 2.3 g/t were proven on the basis of detailed exploration (Zhang et al., 2012). After a few years of mining activities, this mine was defined as “the mine in crisis” due to an apparent depletion of the remaining resource. However, its fortunes have been revived following new underground exploration and the identification of additional resources, and the Yu’erya gold deposit remains today one of the largest active gold mines in China.