The Protolith Nature of Quartz Sandstone from Changlongshan Formation in Liujiang Area, Qinhuangdao City: Evidence of U-Pb and Hf-Isotope from Detrital Zircons

详细信息   

• 责任者：Diwu Chunrong (State Key Laboratory of Continental Dynamics ; Department of Geology ; Northwest University ; Xi’an 710069 ; China) ; Sun Yong
• 刊名：Acta Petrologica et Mineralogica
• 出版年：2011
• 卷期：30(1)
• 关键词：石英砂岩 ; quartz sandstone ; 物源分析 ; provenance analysis ; 河北 ; Hebei Province
• 页码：p.1-12
• 图表：7 illus., 3 tables, 34 refs.
• 分类号：0803
• 出版序号：20120202
• issnNo：ISSN1000-6524
• isbnNo：CN11-1966/P

摘要

 With the development of the in situ zircon SHRIMP U-Pb dating method and laser ablation ICP-MS, the study of the age distribution of detrital zircons from sedimentary rocks has become an effective way to find the source area of clastic material and also become an important topic all over the world. The experiments performed by the authors demonstrate that a low laser frequency (5 Hz or 6 Hz) would reduce element fractionation during laser ablation. A comparison with the Beijing-Jixian stratatigrphic section, from Early Proterozoic, the study area experienced a long period of weathering and erosion, and then began to deposit on the surface and become the source area of clastic sediments of the Changlongshan Formation until Early Neoproterozoic.