Gradients and Dispersal Patterns of Organic Matter and ...
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Gradients and Dispersal Patterns of Organic Matter and Metals as Recorded in Narragansett Bay Sediments
David Murray, Warren Prell, and numerous students
Funding: Brown OVPR seed grant, URI‐Seagrant, RI‐INBRE, NE Interstate Water Pollution Control Commission (EPA grant)
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Murray, D.W., Prell, W.L., Rincon, C.E., and Saarman, E., 2007. Physical property and chemical characteristics of surface sediment grab samples from Narragansett Bay and the Providence and Seekonk Rivers, a summary of the Brown University Narragansett Bay Sediment Project (BUNBSP). Narragansett Bay Estuary Program Report NBEP‐07‐127.
Surface Grab Samples363: grain size, C, N,111: chemistry
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= Seekonk River= Prov River= Upper Bay
+ = Greenwich Bay= West Passage
x = East Passage
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= Seekonk River= Prov River= Upper Bay
+ = Greenwich Bay= West Passage
x = East Passage
ERL: effects range‐ low (10%)ERM: effects range‐median (50%)Long et al, 1995, Env. Mgt., 19: 81‐97
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1850 ‐>
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1610
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20100 50 100
Year AD
Pb (ppm) 0.0 0.4 0.8 1.2Hg (ppm)
Dep
th (cm)
Upper Narragansett Bay Core 8
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