Long-term history of Chesapeake Bay anoxia

Journal Article · Fri Nov 15 04:00:00 EST 1991 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.254.5034.992· OSTI ID:5605367

Cooper, S R; Brush, G S ^[1]

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1. Johns Hopkins Univ., Baltimore, MD (United States)

Stratigraphic records from four sediment cores collected along a transect across the Chesapeake Bay near the mouth of the Choptank River were used to reconstruct a 2,000-year history of anoxia and eutrophication in the Chesapeake Bay. Variations in pollen, diatoms, concentration of organic carbon, nitrogen, sulfur, acid-soluble iron, and an estimate of the degree of pyritization of iron indicate that sedimentation rates, anoxic conditions and eutrophication have increased in the Chesapeake Bay since the time of European settlement.

• OSTI ID: 5605367
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 254:5034; ISSN SCIEA; ISSN 0036-8075
• Country of Publication: United States
• Language: English

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ANOXIA
ATLANTIC OCEAN
BAYS
CHESAPEAKE BAY
COASTAL WATERS
CONTAMINATION
DRILL CORES
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ELEMENTS
EUTROPHICATION
IRON
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METALS
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NITRATES
NITROGEN COMPOUNDS
ORGANIC MATTER
OXYGEN COMPOUNDS
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SEDIMENTS
SULFATES
SULFUR COMPOUNDS
SURFACE WATERS
TRANSITION ELEMENTS
WATER POLLUTION