Age of Kongjia-Yinshan Volcanic Basin in Dexing , Jiangxi
详细信息
- 责任者：Yang Xilin (School of Geoscience and Information Physics ; Central South University ; Changsha 410083 ; China) ; Cao Dianhua
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(1)
- 关键词：火山岩 ; volcanic rocks ; 英安斑岩 ; dacite porphyry ; 铀—铅计时 ; U-Pb dating ; 早侏罗世 ; Lower Jurassic ; 江西 ; Jiangxi Province
- 页码：p.86-93
- 图表：3 illus., 1 table, 30 refs.
- 分类号：1200
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
The Yinshan lead-zinc polymetallic deposit, a giant volcanics-associated hydrothermal ore deposit, is located in Dexing area, northeast Jiangxi Province. The volcanic and sub-volcanic rocks in the Kongjia-Yinshan basin, which constitute the host rocks of the ore deposit, are usually regarded as part of the Upper Jurassic Ehuling Formation, whose exact age, however, remains in question. It is thus concluded that the Early Jurassic volcanic and sub-volcanic rocks in the Kongjia-Yinshan Basin are not the component part of the Ehuling Formation. This result is of significance for the study of the regional geological evolution and the regional metallogenic system in this area.