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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Correlation between shoshonitic rocks and uranium mineralization in the Xiangshan uranium ore field
verfasst von : Shuming Zhang, Dagan Yu, T. S. Brewer
Erschienen in: Mineral Deposit Research: Meeting the Global Challenge
Verlag: Springer Berlin Heidelberg
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The Xiangshan basin contains signifycant volcanic units and is located in the area between Lean country and Chongren Country of Jiangxi Province, China. The basin appears has an oval form with an area of 309 km
2
, it is approximately 26.5 km in length from east to west, and about 15km width from north to south. The basement rocks onto which the Xiangshan basin were deposited are predominantly Proterozoic lower greenschist facies to lower amphibolite facies metamorphic rocks. The basin deposits are composed of upper Jurassic intermediate to acidic volcanic rocks. The upper Jurassic volcanism in the Xiangshan basin can be divided into two cycles. The first volcanic cycle is composed mainly of fissure eruptions of dellenite and dacite porphyry, whereas, the second volcanic cycle is composed of discrete eruptive centres that produced pyroclastic lavas (
Xia et al 1992
;
Shen et al 1995
.