32. NEOGENE PALEOCEANOGRAPHY AND PALEOCLIMATE HISTORY FROM FRAM STRAIT: CHANGES IN ACCUMULATION RATES1

Changes in coarse fraction, calcium carbonate, and total organic carbon (TOC) accumulation rates and wt % define four dif-ferent Neogene climatic and oceanographic regimes for the deep-water Fram Strait area (Site 909). These changes are not as well developed in intermediate water depth at Site 908,...

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Bibliographic Details
Main Authors: Thomas C. W. Wolf-welling, Michel Cremer, Rüdiger Stein
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Fram Strait
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.5785
http://www-odp.tamu.edu/publications/151_SR/VOLUME/CHAPTERS/sr151_32.pdf
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Summary:Changes in coarse fraction, calcium carbonate, and total organic carbon (TOC) accumulation rates and wt % define four dif-ferent Neogene climatic and oceanographic regimes for the deep-water Fram Strait area (Site 909). These changes are not as well developed in intermediate water depth at Site 908, possibly indicative of differences in current velocities at the two sites. Stage I, upper lower to middle Miocene (Site 909, 838-1062 meters below seafloor [mbsf]; 17.5-10.85 m.y.), sediments con-sist of a fining-upwards sequence of mass-wasted sediments, interbedded with laminated and bioturbated sediments. Tectonic influences are the dominant control on these sediments, which were deposited before the initiation of sustained bottom-water flow through Fram Strait.

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