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The effect of submarine groundwater discharge on the ocean
Moore, W.S. (2010). The effect of submarine groundwater discharge on the ocean, in: Carlson, C.A. et al. Ann. Rev. Mar. Sci. 2. Annual Review of Marine Science, 2: pp. 59-88. https://dx.doi.org/10.1146/annurev-marine-120308-081019
In: Carlson, C.A.; Giovannoni, S.J. (Ed.) (2010). Ann. Rev. Mar. Sci. 2. Annual Review of Marine Science, 2. Annual Reviews: Palo Alto. ISBN 978-0-8243-4502-0. 493 pp., more
In: Annual Review of Marine Science. Annual Reviews: Palo Alto, Calif. ISSN 1941-1405; e-ISSN 1941-0611, more
Peer reviewed article  

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Keyword
    Marine/Coastal
Author keywords
    nutrients; trace metals; carbon; limestone; river; estuary; radium

Author  Top 
  • Moore, W.S.

Abstract
    The exchange of groundwater between land and sea is a major component of the hydrological cycle. This exchange, called submarine groundwater discharge (SGD), is comprised of terrestrial water mixed with sea water that has infiltrated coastal aquifers. The composition of SGD differs from that predicted by simple mixing because biogeochemical reactions in the aquifer modify its chemistry. To emphasize the importance of mixing and chemical reaction, these coastal aquifers are called subterranean estuaries. Geologists recognize this mixing zone as a site of carbonate diagenesis and dolomite formation. Biologists have recognized that terrestrial inputs of nutrients to the coastal ocean may occur through subterranean processes. Further evidence of SGD comes from the distribution of chemical tracers in the coastal ocean. These tracers originate within coastal aquifers and reach the ocean through SGD. Tracer studies reveal that SGD provides globally important fluxes of nutrients, carbon, and metals to coastal waters.

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