JR100/Expedition 379T

Extending High Resolution Paleoclimate Records from the Chilean Margin to the Last Interglacial

34 people in cold-weather gear posing in group at front of ship in ocean.

Abstract

In July 2019, I served as co-chief scientist with Yair Rosenthal (Rutgers) on an NSF funded coring expedition aboard the JOIDES Resolution to the Chilean Margin.

The primary objective of the expedition was to recover long sediment records (up to 100 meters below seafloor) to investigate links between oceanographic changes at the northern margin of the Antarctic Circumpolar Current and climate variability on the South American Continent over the past few glacial-interglacial cycles.

During the expedition, eight sites were cored, recovering a total of 2232 m of sediment cores in 670 to 3055 m water depth. 33 scientists participated in the expedition of which more than two-thirds were students or postdocs. All members of the science party were trained in and carried out shipboard analyses, and contributed to interpretations and report writing.

Material collected during the expedition has since supported numerous Ph.D., M.S., and postdoctoral research projects for shipboard and non-shipboard early career scientists.

Two charts showing SST in ºC and Salinity (psu). Range is 70º W to 82º W.

Related Publications

Riechelson, H., Bova, S.C., Rosenthal, Y., Meyers, S., and Expedition 379T Scientists, Solar Cycle Forced South Westerly Wind Migrations During the Holocene. Geophysical Research Letters, Accepted July 12, 2023.
Clementi, Vincent Joseph. Pore Fluid and Sediment Geochemistry on the South Chilean Margin. Ph.D. Thesis. Rutgers The State University of New Jersey, School of Graduate Studies, 2023 United States
Clementi, V.J., Rosenthal, Y., Bova, S.C. et al. Deep submarine infiltration of altered geothermal groundwater on the south Chilean Margin. Commun Earth Environ 3, 218 (2022). https://doi.org/10.1038/s43247-022-00541-3
Li, C., Clementi, V. J., Bova, S. C., Rosenthal, Y., Childress, L. B., Wright, J. D., et al. (2022). The sediment green-blue color ratio as a proxy for biogenic silica productivity along the Chilean Margin. Geochemistry, Geophysics, Geosystems, 23, e2022GC010350. https://doi.org/10.1029/2022GC010350

Bova Lab

JR100/Expedition 379T

Abstract

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