• 责任者：Liang Xinquan (State Key Laboratory of Isotope Geochemistry ; Guangzhou Institute of Geochemistry ; Chinese Academy of Sciences ; Guangzhou 510640 ; China) ; Zhou Yun
• 刊名：Acta Petrologica Sinica
• 出版年：2013
• 卷期：29(10)
• 关键词：沉积作用 ; sedimentation ; 物源分析 ; provenance analysis ; 铀—铅计时 ; U-Pb dating ; 扬子地台 ; Yangtze Platform ; 华夏地块 ; Cathaysia Massif
• 页码：p.3592-3606
• 图表：5 illus., 1 table, 107 refs.
• 分类号：0803
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

     Dongwu Movement is one of the most important geological events in South China during Permian Period. However, there is a significant regional difference in the aspect of tectonism, magmatism and accompanying mineralization, and their dynamic mechanism. A large-scale crustal uplift and the formation of the large igneous province were response to the activity of the Emeishan mantle plume during Middle-Late Permian in the Yangtze Block, whereas fold orogeny, foreland basin formation and large area granite intrusion took place in the Cathaysian Block during late Early Permian to Late Permian, which caused by the subduction and closure of the Paleo-Tethys Ocean and later continental collision between both the Indosinian and South China blocks. Three samples from the Upper Permian Wujiaping Formation provide identical results, ranging from 250Ma to 272Ma, with a significant peak of 259Ma, and indicate their principal derivation from narrow source rocks of the Emeishan large igneous province in the Yangtze Block. In contrast, The age spectrum from six samples of the Upper Permian Longtan （equivalent Wujiaping） Formation is significantly different with a wide age span, ranging from 250Ma to 3652Ma, with five major age peaks at ca. 258Ma, ca. 290Ma, ca. 447Ma, ca. 988Ma and ca. 1880Ma, and four minor age peaks at ca. 360Ma, ca. 541Ma, ca. 823Ma and ca. 2500Ma. These zircon ages, except for 2500Ma, are coeval with exposed magmatic rocks in the Cathaysia Block of southeastern China. This suggests the provenance of the detrital material of the Longtan Formation in Cathaysian Block was from the Cathaysian Block itself through the short distance transportation, and experienced complex crustal evolution, includinz Jinning. Caledonian and lndosinian orogenies.