Section and sample a 20 meter long sediment core collected in Chesapeake Bay by the R/V Marion Dufresne

Researchers from the USGS, US Naval Research Laboratory, the College of William & Mary, and the Virginia Institute of Marine Science prepare to section and sample a 20 meter long sediment core collected in Chesapeake Bay by the R/V Marion Dufresne. This core and others provide documentation for how water quality and temperature varied naturally, as well as the impacts of human activities in the watershed.  Learn More