Impact of Indus River discharge on productivity and preservation of organic carbon in the Arabian Sea over the twentieth century
2012-03-27

Research Article| May 01, 2012 Impact of Indus River discharge on productivity and preservation of organic carbon in the Arabian Sea over the twentieth century Andreas Lückge; Andreas Lückge 1Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), 30655 Hannover, Germany Search for other works by this author on: GSW Google Scholar Gaudenz Deplazes; Gaudenz Deplazes 2Geological Institute, Department of Earth Sciences, ETH Zürich, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Hartmut Schulz; Hartmut Schulz 3University of Tübingen, 72076 Tübingen, Germany Search for other works by this author on: GSW Google Scholar Georg Scheeder; Georg Scheeder 1Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), 30655 Hannover, Germany Search for other works by this author on: GSW Google Scholar Axel Suckow; Axel Suckow 4Institut für Angewandte Geophysik, 30655 Hannover, Germany Search for other works by this author on: GSW Google Scholar Sabine Kasten; Sabine Kasten 5Alfred Wegener Institute for Polar and Marine Research, 27570 Bremerhaven, Germany Search for other works by this author on: GSW Google Scholar Gerald H. Haug Gerald H. Haug 2Geological Institute, Department of Earth Sciences, ETH Zürich, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Geology (2012) 40 (5): 399–402. https://doi.org/10.1130/G32608.1 Article history received: 30 Jun 2011 rev-recd: 01 Dec 2011 accepted: 01 Dec 2011 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Andreas Lückge, Gaudenz Deplazes, Hartmut Schulz, Georg Scheeder, Axel Suckow, Sabine Kasten, Gerald H. Haug; Impact of Indus River discharge on productivity and preservation of organic carbon in the Arabian Sea over the twentieth century. Geology 2012;; 40 (5): 399–402. doi: https://doi.org/10.1130/G32608.1 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 Marine high-productivity zones along the continents are of great economic importance, and they account for most organic carbon burial. The carbon cycle in many coastal zones is influenced by the sediments and dissolved nutrients introduced by rivers. However, there is little direct evidence for a regional marine response to changes in river dynamics. Here we present a suite of high-resolution records of organic and inorganic paleoceanographic proxies, which together demonstrate that past changes in Indus River discharge have strongly affected productivity patterns in the coastal northeastern Arabian Sea. Anthropogenic activity, including the building of dams and irrigation facilities during the past century, has drastically decreased the discharge rate of the Indus River. Between A.D. 1890 and 1998, the period over which this reduction occurred, primary productivity off the Pakistan coast seems to have decreased by more than one-third. Over the same period, the regional oxygen minimum zone weakened, increasing the supply of oxygen to the sediments, leaving the expected imprint on a suite of redox-sensitive elements and reducing the preservation of organic matter. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.