SHRIMP U-Pb Isotope Age of Volcanic Rocks Distributed in the Badaohao Area, Liaoning Province and Its Significance

详细信息   

• 责任者：Cai Hou’an （College of Energy Geology ; China University of Geosciences ; Beijing 100083 ; China） ; Xu Debin
• 刊名：Coal Geology & Exploration
• 出版年：2008
• 卷期：36(4)
• 关键词：煤系 ; coal measures ; 火山岩 ; volcanic rocks ; 铀—铅计时 ; U ; Pb ; 辽宁 ; Liaoning
• 页码：p.17-20
• 图表：2 illus., 1 table, 16 refs.
• 分类号：1004
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

摘要

A set of andesite volcanic rocks distributes in the Badaohao area in Heishan County, Liaoning Province. It’s geological age and stratigraphy sequence relationship between the Lower Cretaceous Badaohao Formation and the volcanic rocks can not make sure till now and is influencing the further prospect for coals. Zircon particles are sorted out from the samples and measured by using the SHRIMP method. The U-Pb isotopic age of these two samples are 124.9±2.9 Ma and 125.7±1.7 Ma,belonging to Early Cretaceous Yixian Formation and is underlain the Badaohao Formation.