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    A Method for Quantifying Deep-Sea Carbonate Dissolution Using 14C Dating

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    Author
    van Kreveld, S. A.
    Ganssen, G. M.
    van der Plicht, J. E.
    Melkert, M. M.
    Troelstra, S. R.
    van der Borg, K.
    de Jong, Arie
    Issue Date
    1995-01-01
    Keywords
    carbonate compensation depth
    lysoclines
    solution
    Northeast Atlantic
    deep sea environment
    hydrochemistry
    rates
    calcium carbonate
    Atlantic Ocean
    North Atlantic
    sea water
    marine environment
    Foraminifera
    Protista
    Holocene
    Cenozoic
    Quaternary
    methods
    C 14
    carbon
    isotopes
    radioactive isotopes
    Invertebrata
    absolute age
    geochemistry
    carbonates
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    Citation
    van Kreveld, S. A., Ganssen, G. M., van Hinte, J. E., Melkert, M. M., Troelstra, S. R., van der Borg, K., & de Jong, A. (1995). A Method for Quantifying Deep-sea carbonate dissolution using 14C dating. Radiocarbon, 37(2), 585-592.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/653215
    DOI
    10.1017/S0033822200031076
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    We quantified the rate of carbonate dissolution with increasing water depth by taking the difference in the carbonate mass accumulation rate of deep (3393-4375 m) core top sediments from the shallowest one (3208 m), which we assumed was unaffected by dissolution. This method depends on high quality 14C dates that we calibrated to calendar years for calculating sedimentation rates. Our results show low (ranging from 0 to 0.3 g cm-2 ka-1) and high (ranging from 1.5 to 1.7 g cm-2 ka-1) carbonate dissolution rates, above and below 4000 m, respectively. Therefore, we interpret the sudden increase in the carbonate dissolution rate at 4000-m water depth to mark the lysocline.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200031076
    Scopus Count
    Collections
    Radiocarbon, Volume 37, Number 2 (1995)

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