Natural and anthropogenic sources of East Asian dustстатья из журнала
Аннотация: Research Article| August 01, 2009 Natural and anthropogenic sources of East Asian dust Gaojun Li; Gaojun Li 1State Laboratory of Mineral Deposits Research, Institute of Surficial Geochemistry, Department of Earth Sciences, Nanjing University, Nanjing 210093, China2Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK Search for other works by this author on: GSW Google Scholar Jun Chen; Jun Chen * 1State Laboratory of Mineral Deposits Research, Institute of Surficial Geochemistry, Department of Earth Sciences, Nanjing University, Nanjing 210093, China *E-mail: chenjun@nju.edu.cn. Search for other works by this author on: GSW Google Scholar Junfeng Ji; Junfeng Ji 1State Laboratory of Mineral Deposits Research, Institute of Surficial Geochemistry, Department of Earth Sciences, Nanjing University, Nanjing 210093, China Search for other works by this author on: GSW Google Scholar Jiedong Yang; Jiedong Yang 1State Laboratory of Mineral Deposits Research, Institute of Surficial Geochemistry, Department of Earth Sciences, Nanjing University, Nanjing 210093, China Search for other works by this author on: GSW Google Scholar Tim M. Conway Tim M. Conway 2Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK Search for other works by this author on: GSW Google Scholar Geology (2009) 37 (8): 727–730. https://doi.org/10.1130/G30031A.1 Article history received: 13 Jan 2009 rev-recd: 16 Mar 2009 accepted: 01 Apr 2009 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Gaojun Li, Jun Chen, Junfeng Ji, Jiedong Yang, Tim M. Conway; Natural and anthropogenic sources of East Asian dust. Geology 2009;; 37 (8): 727–730. doi: https://doi.org/10.1130/G30031A.1 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 Nd-Sr isotopic signatures of loess, modern dust, and their potential source materials are systematically investigated to discriminate the natural and anthropogenic sources of eastern Asian dust. Chinese loess is an eolian deposit that has accumulated over the past few million years, and is characterized by a negative Nd-Sr isotopic correlation that implies binary sources for the natural background of eastern Asian dust. Loess in northeastern China shows the highest εNd(0) value, while loess in western China has the lowest εNd(0). Considering the Nd-Sr isotopic signatures of the potential sources, we propose that the high εNd(0) end member is derived from the arid lands around the northern boundary of China while the low εNd(0) end member originates from the deserts on the northern margin of the Tibetan Plateau. Chinese Loess Plateau deposits are dominated by northern margin Tibetan Plateau dust, suggesting a strong link between the thick eolian deposit in this region and the evolution of the Tibetan Plateau. The long-range transported spring dust in both Nanjing (south China) and Japan has an Nd-Sr isotopic composition similar to that of loess. However, spring dust in Beijing (north China) has a much lower εNd(0) value, indicating an additional anthropogenic contribution of low εNd(0) material, possibly from the sandy lands in the adjacent north and west. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Год издания: 2009
Авторы: Guoqiang Li, Jun Chen, Junfeng Ji, Jingsui Yang, Tim M. Conway
Издательство: Geological Society of America
Источник: Geology
Ключевые слова: Radioactivity and Radon Measurements, Geology and Paleoclimatology Research, Geochemistry and Elemental Analysis
Открытый доступ: closed
Том: 37
Выпуск: 8
Страницы: 727–730