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Full-Text Articles in Marine Biology
Surface And Deep Ocean Circulation In The Subpolar North Atlantic During The Mid-Pleistocene Revolution, Amy K. Wright, Benjamin P. Flower
Surface And Deep Ocean Circulation In The Subpolar North Atlantic During The Mid-Pleistocene Revolution, Amy K. Wright, Benjamin P. Flower
Marine Science Faculty Publications
We investigated surface and deep ocean variability in the subpolar North Atlantic from 1000 to 500 thousand years ago (ka) based on two Ocean Drilling Program (ODP) sites, Feni drift site 980 (55°29′N, 14°42′W) and Bjorn drift site 984 (61°25′N, 24°04′W). Benthic foraminiferal stable isotope data, planktic foraminiferal faunas, ice‐rafted debris data, and faunally based sea‐surface temperature estimates help test the hypothesis that oceanographic changes in the North Atlantic region were associated with the onset of the 100‐kyr world during the mid‐Pleistocene revolution. Based on percentage of Neogloboquadrina pachyderma (s) records from both sites, surface waters during interglacials and glacials …
A Multiproxy Approach To Reconstructing Sea Surface Conditions Using Coral Skeleton Geochemistry, Terrence M. Quinn, Daniel E. Sampson
A Multiproxy Approach To Reconstructing Sea Surface Conditions Using Coral Skeleton Geochemistry, Terrence M. Quinn, Daniel E. Sampson
Marine Science Faculty Publications
[1] We use elemental ratio (Mg/Ca, Sr/Ca, U/Ca and Ba/Ca) and oxygen isotope data from a Porites lutea coral head collected from offshore Amedee Island, New Caledonia (22degrees29'S, 166degrees28'E) to assess the degree to which changes in these geochemical variables reflect variations in sea surface conditions. We have assessed the robustness of each geochemical proxy by comparing 25 years (1992-1968) of monthly geochemical variations with a local record of sea surface temperature (SST) and with the appropriate 1degrees by 1degrees grid box from a global gridded SST data set. We conclude from our comparison that the most consistent proxies of …