Geochemical methods for investigating past changes in Chesapeake Bay
Technical Report
·
OSTI ID:676170
The trace metals, Cu, Mo and Re have been measured in a number of sediment cores from the main stem of Chesapeake Bay and from the adjacent Patuxent estuary. The cores were dated with Pb-210, supplemented by C-14, pollen and Pu(239, 240). Mo and Re were measured by an isotope dilution method. Reconnaissance data on Os-187/Os-188 ratios were obtained by thermal ionization mass spectrometry. The data are used to investigate two questions: (1) what is the origin of the pervasive Cu contamination in the Chesapeake system, and (2) can profiles of these metals in cores provide information on the history of sulfidic conditions in the water column.
- Research Organization:
- Maryland Univ., College Park, MD (United States); Maryland Dept. of Natural Resources, Chesapeake Bay and Watershed Programs, Annapolis, MD (United States)
- OSTI ID:
- 676170
- Report Number(s):
- PB--99-103681/XAB
- Country of Publication:
- United States
- Language:
- English
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