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Structure Analysis and Its Control over Gold and Lead‐Zinc Mineralization in the Fengtai Ore Cluster, West Qinling, China
Author(s) -
CHEN Shaocong,
WANG Yitian,
HU Qiaoqing,
LIU Xielu,
ZHANG Juan,
WEI Ran,
WANG Ruiting,
WEN Shenwen,
LIU Wei
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 - 10.1111/1755-6724.12367_1
Subject(s) - metallogeny , beijing , chinese academy of sciences , china , mineralization (soil science) , mineral resource classification , geochemistry , mineral exploration , geology , mining engineering , archaeology , pyrite , geography , soil science , sphalerite , soil water
The Fengxian-Taibai (abbr. Fengtai) ore cluster in Shaanxi Provence, a very important part of the polymetallic ore forming zone in the West Qinling Orogen (WQO), is located in the east of WQO between the North and South China (Yangtze) cratons. The Fengtai ore cluster is a rhombic-shaped area confined by the Xiangzihe-Huangbaiyuan Fault to the north part of the Shangdan Suture and the Jiudianliang-Jiangkou Fault to the south. Regional exposed strata in the Fengtai ore cluster are predominantly comprised of middle to late Devonian low-metamorphosed fine clastic sedimentary and carbonate rocks. The Xiba intermediate-acid intrusive pluton is the biggest one in this area, including granodiorite, biotite ganite, monzonitic granite, quartz monzodiorite, etc. In addition, widespread dikes can also be found in this area, such as diorite-porphyrite, graniteporphyry and lamprophyre. There are various mineral deposits, of which minerals like lead, zinc and gold are more pronounced in the Fengtai ore cluster. The lead-zinc deposits and gold deposits in the Fengtai ore cluster distributes clearly along the NWW-trending belts, consistent with the direction of the regional tectonic line. Lead-zinc deposits controlled mainly by the NWW-trending fold structures, commonly occurred in the crushed zone between the Gudaoling Formation of Middle Devonian and the Xinghongpu Formation of Upper Devonian and in the collapsed space of the anticlines, like the Bafangshan-Erlihe deposit, the Yinmusi deposit, the Yindongliang deposit, the Qiandongshan-Dongtangzi deposit, etc. There are many gold deposits and occurrences explored and ascertained in the Fengtai ore cluster, including the Buaguamiao deposit, the Shuangwang deposit, the Pangjiahe deposit, etc. The gold ore bodies of the deposits mentioned above occurred in, and are controlled by the NWW-trending brittle-ductile shear zone.