Geology and mineralogy of the Baolun hydrothermal gold deposit in the;Hainan Island, South China

doi:10.1111/j.1751-3928.2006.tb00276.x

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院地质力学研究所

	Geology and mineralogy of the Baolun hydrothermal gold deposit in the;Hainan Island, South China
	Wang, PA 4; Kaneda, H ; Ding, SJ ; Zhang, XW ; Liao, XJ ; Dong, FX ; Li, ZJ ; Liu, XC ; Lai, Y
刊名	RESOURCE GEOLOGY
	2006
卷号	56 期号:2 页码:157-166
关键词	gold deposit quartz vein type bismuth-bearing minerals Mesozoic granite Baolun Hainan Island
ISSN号	1344-1698
DOI	10.1111/j.1751-3928.2006.tb00276.x
英文摘要	The Baolun quartz vein type Au deposit, is located at the southwestern Hainan Island. It occurs next to a Triassic ilmenite-series/S-type syenogranite complex. A Ar-40/Ar-39 plateau age for muscovite from the master orebody is dated to be 219.4 +/- 0.6 Ma, suggesting that the gold deposit genetically related to the granite pluton. In the Baolun mining area, orebodies of auriferous quartz vein and wall rock alteration occur in NNW-striking fracture zones hosted by weakly metamorphosed turbidite of the Lower Silurian age. Eight fracture zones, 400 similar to 1300 m long and 10 similar to 30 m wide, have been identified. The five fracture zones of them form orebodies. The ores are mainly of quartz vein type. More than 20 orebodies in shapes of vein and lens of 195 similar to 751 m in length and 0.20 similar to 7.49 m in thickness are known, and 14 of them occur in the No. 1 vein belt. Silicification, sericitization and pyritization are closely related to the An mineralization. The ores exhibit commonly 1.54 similar to 29.48 g/t in Au grade, partially > 98 g/t. The master orebody is 720 m long and 2.62 m thick in average, with 9.53 similar to 29.27 g/t Au. Gold reserves of more than 70 t have been proven by geological exploration. More than 20 metallic minerals including native gold and sulfides such as pyrite, pyrrhotite, chalcopyrite, and others are identified to be formed in four ore-forming stages: (1) Au-coarse grain quartz stage, (2) Au-fine grained quartz stage, (3) Au-bismuthide-bismuth sulfosalt-sulfide-quartz stage, and (4) calcite-sulfide-quartz stage. The An mineralization in this deposit occurred mainly in the first three stages. A variety of Bi- and Te-bearing minerals is closely associated with native gold suggesting that the mineralization may take place in a relatively high temperature.
学科主题	矿床地质
WOS研究方向	Geology ; Mineralogy
语种	英语
出版者	SOC RESOURCE GEOLOGY
WOS记录号	WOS:000238165300005
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38352]
专题	中国地质科学院地质力学研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China. 2.Univ Tokyo, Dept Geosyst Engn, Tokyo 1138656, Japan. 3.Univ Tokyo, Earthquake Res Inst, Tokyo, Japan. 4.中国地质科学院地质力学研究所
推荐引用方式 GB/T 7714	Wang, PA,Kaneda, H,Ding, SJ,et al. Geology and mineralogy of the Baolun hydrothermal gold deposit in the;Hainan Island, South China[J]. RESOURCE GEOLOGY,2006,56(2):157-166.
APA	Wang, PA.,Kaneda, H.,Ding, SJ.,Zhang, XW.,Liao, XJ.,...&Lai, Y.(2006).Geology and mineralogy of the Baolun hydrothermal gold deposit in the;Hainan Island, South China.RESOURCE GEOLOGY,56(2),157-166.
MLA	Wang, PA,et al."Geology and mineralogy of the Baolun hydrothermal gold deposit in the;Hainan Island, South China".RESOURCE GEOLOGY 56.2(2006):157-166.