FN Archimer Export Format
PT J
TI The co-evolution of Black Sea level and composition through the last deglaciation and its paleoclimatic significance
BT 
AF MAJOR, Candace O.
   GOLDSTEIN, Steven L.
   RYAN, William B.F.
   LERICOLAIS, Gilles
   PIOTROWSKI, Alexander M.
   HAJDAS, Irka
AS 1:1,2;2:2;3:2;4:4;5:2,3;6:6;
FF 1:;2:;3:;4:PDG-DOP-DCB-GM-LES;5:;6:;
C1 Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA.
   Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
   Columbia Univ, Dept Earth & Environm Sci, Palisades, NY 10964 USA.
   IFREMER, Ctr Brest, F-29280 Plouzane, France.
   Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England.
   Institut für Teilchenphysik, (IPP), HPK H 27, ETH-Hoenggerberg, CH-8093 Zurich, Switzerland
C2 WOODS HOLE, USA
   UNIV COLUMBIA, USA
   UNIV COLUMBIA, USA
   IFREMER, FRANCE
   UNIV CAMBRIDGE, UK
   INSTITUT FÜR TEILCHENPHYSIK, SWITZERLAND
SI BREST
SE PDG-DOP-DCB-GM-LES
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
IF 4.113
TC 149
UR https://archimer.ifremer.fr/doc/2006/publication-2006.pdf
LA English
DT Article
CR BLASON
   MD 139 / ASSEMBLAGE - 1
BO Le Suroît
   Marion Dufresne
DE ;Sea level changes;Black Sea;Deglaciation;Glaciation;Palaeoclimate;Palaeoceanography
AB The Black Sea was an inland lake during the last ice age and its sediments are an excellent potential source of information on Eurasian climate change, showing linkages between regionally and globally recognized millennial-scale climate events of the last deglaciation. Here, we detail changes from the last glacial maximum (LGM) through the transition to an anoxic marginal sea using isotopic (strontium and oxygen) and trace element (Sr/Ca) ratios in carbonate shells, which record changing input sources and hydrologic conditions in the basin and surrounding region. Sr isotope records show two prominent peaks between similar to 18 and 16 ka BP cal, reflecting anomalous sedimentation associated with meltwater from disintegrating Eurasian ice sheets that brought Black Sea level to its spill point. Following a sharp drop in Sr isotope ratios back toward glacial values, two stages of inorganic calcite precipitation accompanied increasing oxygen isotope ratios and steady Sr isotope ratios. These calcite peaks are separated by an interval in which the geochemical proxies trend back toward glacial values. The observed changes reflect negative water balance and lake level decline during relatively warm periods (Bolling-Allerod and Preboreal) and increasing river input/less evaporation, resulting in higher lake levels, during the intervening cold period (the Younger Dryas). A final shift to marine values in Sr and oxygen isotope ratios at 9.4 ka BP cal corresponds to connection with the global ocean, and marks the onset of sedimentation on the Black Sea continental shelf. This date for the marine incursion is earlier than previously suggested based on the appearance of euryhaline fauna and the onset of sapropel formation in the deep basin.
PY 2006
PD SEP
SO Quaternary Science Reviews
SN 0277-3791
PU Elsevier
VL 25
IS 17-18
UT 000240819000002
BP 2031
EP 2047
DI 10.1016/j.quascirev.2006.01.032
ID 2006
ER

EF