Magmatism along the southeast margin of the Yangtze block: Precambrian collision of the Yangtze and Cathysia blocks of China

Research Article| August 01, 1991 Magmatism along the southeast margin of the Yangtze block: Precambrian collision of the Yangtze and Cathysia blocks of China Chen Jiangfeng; Chen Jiangfeng 1Department of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China Search for other works by this author on: GSW Google Scholar K. A. Foland; K. A. Foland 2Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210 Search for other works by this author on: GSW Google Scholar Xing Fengming; Xing Fengming 3Anhui Institute of Geological Sciences, Hefei, Anhui 230001, China Search for other works by this author on: GSW Google Scholar Xu Xiang; Xu Xiang 3Anhui Institute of Geological Sciences, Hefei, Anhui 230001, China Search for other works by this author on: GSW Google Scholar Zhou Taixi Zhou Taixi 1Department of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China Search for other works by this author on: GSW Google Scholar Author and Article Information Chen Jiangfeng 1Department of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China K. A. Foland 2Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210 Xing Fengming 3Anhui Institute of Geological Sciences, Hefei, Anhui 230001, China Xu Xiang 3Anhui Institute of Geological Sciences, Hefei, Anhui 230001, China Zhou Taixi 1Department of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1991) 19 (8): 815–818. https://doi.org/10.1130/0091-7613(1991)019<0815:MATSMO>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Chen Jiangfeng, K. A. Foland, Xing Fengming, Xu Xiang, Zhou Taixi; Magmatism along the southeast margin of the Yangtze block: Precambrian collision of the Yangtze and Cathysia blocks of China. Geology 1991;; 19 (8): 815–818. doi: https://doi.org/10.1130/0091-7613(1991)019<0815:MATSMO>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The time and the environment of formation of igneous rocks along the southern margin of the Yangtze continental block in southern Anhui Province and northeastern Jiangxi Province, China, are discussed. Sm-Nd dating for samples from two ophiolite suites give ages of about 1 Ga. Late Proterozoic granodiorites in the study area have ages of about 0.9 Ga and have normal intrusive relations against Banxi Group metamorphic country rocks. Trace element abundances and initial Nd isotope ratios for ophiolite and Proterozoic granodiorites are consistent with formation in an island-arc environment. In contrast, Sr and Nd isotopes for Mesozoic granitoids of the region suggest that they are products of remelting of crustal sources similar to the basement of the Yangtze block. These relations do not support a recently proposed Mesozoic overthrust tectonic model for southeast China, but rather favor a late Precambrian collision history for the Yangtze and Cathysia blocks. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.