A Method for Quantifying Deep-Sea Carbonate Dissolution Using 14C Dating
Issue Date
1995-01-01Keywords
carbonate compensation depthlysoclines
solution
Northeast Atlantic
deep sea environment
hydrochemistry
rates
calcium carbonate
Atlantic Ocean
North Atlanticsea watermarine environmentForaminiferaProtistaHoloceneCenozoicQuaternarymethodsC 14carbonisotopesradioactive isotopesInvertebrataabsolute agegeochemistrycarbonates
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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.Journal
RadiocarbonAdditional 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
Articletext
Language
enISSN
0033-8222Scopus Count
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