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Glacial hydrologic conditions in the Black Sea reconstructed using geochemical pore water profiles ArchiMer
Soulet, Guillaume; Delaygue, G.; Vallet-coulomb, C.; Boettcher, M. E.; Sonzogni, C.; Lericolais, Gilles; Bard, E..
Chloride and delta O-18 compositions of interstitial water extracted from a long sediment core retrieved from the NW coast of the Black Sea allowed us to constrain the main hydrologic changes of the Back Sea during the Late Pleistocene and Holocene. Prior to its reconnection with the Mediterranean Sea (through the Marmara Sea) at approximately 9000 calendar yr before present (9 ka cal BP), the Black Sea has evolved as a fresh to brackish water lake. At the time of reconnection, hydrologic changes were drastic. Bottom water salinities changed from a few psu (practical salinity unit) to similar to 22 psu. Since solutes in the interstitial water column within sediments are advected and diffused the measured concentrations do not reflect those of past bottom...
Tipo: Text Palavras-chave: Black Sea; Interstitial water; Salinity; Water isotopes; Advection/diffusion modelling; Deglaciation.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00011/12239/9798.pdf
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