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The Application of Pb Isotope Geochemical Method in Deep Ore Exploration Dashui Gold Deposit, Maqu County, Gansu Province
Author(s) -
ZHANG Jiangsu,
PENG Xiuhong,
ZHU Bingquan,
LI Wenjun
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 - 10.1111/1755-6724.12380_49
Subject(s) - china , geology , geochemistry , mining engineering , chinese academy of sciences , mineral resource classification , library science , archaeology , geography , computer science
The basic geochemistry research shows that lead isotope study not only can be used for model age dating and metallogenic material resource investigation but also for geochemical exploration and prospecting evaluation (Cui, 2005). The lead isotope composition of different genetic type ore deposits has certain relation to metallogenic elements (He, 1994). Therefore, the isotope geochemical prospecting method not only can be used to detect blind ore deposits but also to investigate the origin of such deposits. The detection of blind ore deposit which belongs to the frontier issue of the theoretical science of geochemical exploration is the focus and forefront in the field of geological exploration. Doe and Stacey (1974) and Gulson (1998-1990) first applied lead isotope to detect blind ore deposits in the 1960s.Thereafter this technique was wildly used in domestic exploration. Xia (1982) first applied lead isotope geochemical method to the evaluation of uranium deposits in China. Huang (1995) also applied this method to the evaluation of gold deposits which are located in Hainan Province and the middle and lower reaches of Yangtze River. Rui (1991) used lead isotope shooting method to evaluate the deep ore body of Guanmenshan lead-zinc deposit. Zhu (1993, 1998) adopted successfully lead isotope shooting method to further the prospecting work in polymetallic ore belt in Altay area of Xinjiang. Also this method was put to use by Cui Xue-jun to predict the resource extent, form and depth of blind ore body of the gold deposit in Yinzuishan, Gansu Province. The lead isotope method was applied to predict and evaluate the deep ore body of the gold deposit in Tongling area Anhui Province (Huang, 1989), Baoban gold deposit in Hainan province, Dongchuan copper deposit in Yunnan province (Chang, 1997), Hanshan gold deposit in the west section of north Qilian achieved excellent results. These achievements greatly promoted the development of lead isotope geochemical method and studies on methods of blind ore deposit detection.