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Fluid Inclusion Studies of the Cunqian Copper Polymetallice Deposit, Jiangxi Province, China
Author(s) -
WANG Qiang,
XIAO Yuanfu,
HAO Zhemin,
ZHAO Han,
GONG Tingting,
HE Jiale
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 - 10.1111/1755-6724.12379_49
Subject(s) - china , geography , library science , archaeology , computer science
The Cunqian copper polymetallic deposit is located in the combining site between Yangtze plate and Cathaysian plate,which is called Qinhang metallogenic belt, and south east of the Yi Feng-Jing Dezhen deep fracture. It is under the Jurisdiction of the Gao An city Cunqian town and Yi Feng county Xin Zhuang village. And it is known as a copper polymetallic with mainly skarn mineralization. Most parts of the diggings are covered by humus layers of Quaternary system, whose bedrocks are not exposed. According to the information provided by the drilling and mining engineering, the layers in the orefield respectively are Neoproterozoic Shuangqiaoshan Formation(Pt3sh), Huanglong Formation – Chuanshan Formation of Upper Carboniferous(C2h-C2c), Lower Permian Qixia Formation(P1q), Upper Triassic An'yuan Formation (T3a), Upper Cretaceous Hekou Formation (K2h) and Quaternary according to the order from old to young. The host stratum deposit is Huanglong Formation – Chuanshan Formation of Upper Carboniferous(C2hC2c).Lithologic association is limestone, lime-dolomite and dolomite while skarnization and marbleization are located in the contact part of rock bodies. The main orebearing rock body is biotite granite porphyry which has the characteristics of repetitious invasion with close relationship to mineralization. The main ore-controlling structure is the Cunqian reverse plunging anticline and wings, as well as Upper Carboniferous Huanglong Chuanshan Formation (C2h-C2c) with Neoproterozoic Shuangqiaoshan Formation(Pt3sh)angular unconformity interface According to the distribution of ore space, the mining area is divided into four ore belts and eight orebodies, of which the II3 ore body is the main ore, which is produced in the main rock contact zone and the unconformity between Huanglong Chuanshan Formation and Shuangqiaoshan Formation. The second main contact zone is the footwall and carbonate rocks layers in Huanglong Chuanshan Formation among fracture zones.