Response of the Eq. Pacific to Quaternary Climate Change: Sedimentary Chemical Evidence For Glacial-Interglacial Contrasts In Productivity, Chemical Transport Rate, and Terrigenous Influence Chemical indicators of productivity, chemical transport rate, and terrigenous flux will be used to determine the biogeochemical response of the central equatorial Pacific Ocean to Quaternary climate change. The strategy involves the analysis of downhole records along a latitudinal transect. Sedimentary chemistry will be done on 15 m long piston cores recovered at 2 degree S, 0 degree, 2 degree N, 5 degree N, along a transect at 140 degree W, thus covering the sharp equatorial gradients in productivity and associated depositional and diagenetic processes. Studies will also cover the effect of the dominant aeolian source of terrigenous particulate matter (the intertropical convergence of the tradewinds, at 5 degree N). Downhole sampling strategy will result in resolution of < 7 ky for the past 1 Ma. Interactive behavior of the three major biogenic components (CaCO3, Corg, opal), the aeolion component, and an extensive suite 40 major, trace, and rare earth elements will be assessed.

Agency
National Science Foundation (NSF)
Institute
Division of Ocean Sciences (OCE)
Application #
9301097
Program Officer
Rodger W. Baier
Project Start
Project End
Budget Start
1993-07-15
Budget End
1996-12-31
Support Year
Fiscal Year
1993
Total Cost
$194,291
Indirect Cost
Name
Boston University
Department
Type
DUNS #
City
Boston
State
MA
Country
United States
Zip Code
02215