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| Cronin, Tm; Thunell, R; Dwyer, Gs; Saenger, C; Mann, Me; Vann, C; Seal, Rr. |
| We reconstructed paleoclimate patterns from oxygen and carbon isotope records from the fossil estuarine benthic foraminifera Elphidium and Mg/Ca ratios from the ostracode Loxoconcha from sediment cores from Chesapeake Bay to examine the Holocene evolution of North Atlantic Oscillation (NAO)-type climate variability. Precipitation-driven river discharge and regional temperature variability are the primary influences on Chesapeake Bay salinity and water temperature, respectively. We first calibrated modern delta(18)O(water) to salinity and applied this relationship to calculate trends in paleosalinity from the delta(18)O(foram), correcting for changes in water temperature estimated from ostracode Mg/Ca ratios. The results indicate a much drier early Holocene... |
| Tipo: Text |
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| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00229/34072/32537.pdf |
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