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Rates of chemical denudation and CO drawdown in a glacier-covered alpine catchment

1995; Geological Society of America; Volume: 23; Issue: 1 Linguagem: Inglês

10.1130/0091-7613(1995)023 2.3.co;2

1943-2682

Martin Sharp, Martyn Tranter, Giles H. Brown, Mark Skidmore,

Groundwater and Isotope Geochemistry

Research Article| January 01, 1995 Rates of chemical denudation and CO2 drawdown in a glacier-covered alpine catchment Martin Sharp; Martin Sharp 1Department of Geography, University of Alberta, Edmonton, Alberta T6G 2H4, Canada Search for other works by this author on: GSW Google Scholar Martyn Tranter; Martyn Tranter 2Department of Geography, University of Bristol, Bristol BS8 1SS, United Kingdom Search for other works by this author on: GSW Google Scholar Giles H. Brown; Giles H. Brown 3Institute of Earth Studies, University College of Wales, Aberystwyth, Dyfed SY23 3DB, United Kingdom Search for other works by this author on: GSW Google Scholar Mark Skidmore Mark Skidmore 1Department of Geography, University of Alberta, Edmonton, Alberta T6G 2H4, Canada Search for other works by this author on: GSW Google Scholar Geology (1995) 23 (1): 61–64. https://doi.org/10.1130/0091-7613(1995)023 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 MailTo Tools Icon Tools Get Permissions Search Site Citation Martin Sharp, Martyn Tranter, Giles H. Brown, Mark Skidmore; Rates of chemical denudation and CO2 drawdown in a glacier-covered alpine catchment. Geology 1995;; 23 (1): 61–64. doi: https://doi.org/10.1130/0091-7613(1995)023 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 Solute fluxes from a glacier-covered alpine catchment are partitioned into components derived from sea-salt, acid aerosol, dissolution of atmospheric CO2, and crustal weathering. The bulk of solute is crustally derived. Coupled sulfide oxidation and carbonate dissolution (SO-CD) and carbonation of carbonate minerals generate approximately equal amounts of solute. Chemical denudation constitutes <1.5% of solid denudation but is significantly higher than the continental average. CO2 drawdown by weathering reactions varies directly with discharge and suspended-sediment load and inversely with meltwater p(CO2). If it is generally true that flushing rates control CO2 drawdown in glacier-covered catchments, then glacially driven chemical weathering could be a significant factor in carbon cycling and climate change on glacial-interglacial time scales. 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.