Influence of late Cenozoic mountain building on ocean geochemical cycles

Research Article| July 01, 1988 Influence of late Cenozoic mountain building on ocean geochemical cycles Maureen E. Raymo; Maureen E. Raymo 1Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University, Palisades, New York 10964 Search for other works by this author on: GSW Google Scholar William F. Ruddiman; William F. Ruddiman 1Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University, Palisades, New York 10964 Search for other works by this author on: GSW Google Scholar Philip N. Froelich Philip N. Froelich 1Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University, Palisades, New York 10964 Search for other works by this author on: GSW Google Scholar Geology (1988) 16 (7): 649–653. https://doi.org/10.1130/0091-7613(1988)0162.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Maureen E. Raymo, William F. Ruddiman, Philip N. Froelich; Influence of late Cenozoic mountain building on ocean geochemical cycles. Geology 1988;; 16 (7): 649–653. doi: https://doi.org/10.1130/0091-7613(1988)0162.3.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 In a steady-state ocean, input fluxes of dissolved salts to the sea must be balanced in mass and isotopic value by output fluxes. For the elements strontium, calcium, and carbon, rivers provide the primary input, whereas marine biogenic sedimentation dominates removal. Dissolved fluxes in rivers are related to rates of continental weathering, which in turn are strongly dependent on rates of uplift. The largest dissolved fluxes today arise in the Himalayan and Andean mountain ranges and the Tibetan Plateau. During the past 5 m.y., uplift rates in these areas have increased significantly; this suggests that weathering rates and river fluxes may have increased also. The oceanic records of carbonate sedimentation, level of the calcite compensation depth, and δ13C and δ87Sr in biogenic sediments are consistent with a global increase in river fluxes since the late Miocene. The cooling of global climate over the past few million years may be linked to a decrease in atmospheric CO2 driven by enhanced continental weathering in these tectonically active regions. 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.