Long-term history of Chesapeake Bay anoxia

Journal Article · Fri Nov 15 00:00:00 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), Vol. 254:5034; ISSN 0036-8075
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
CHESAPEAKE BAY
WATER POLLUTION
SEDIMENTS
CONTAMINATION
ANOXIA
DRILL CORES
ECOLOGICAL CONCENTRATION
EUTROPHICATION
IRON
MONITORING
NITRATES
ORGANIC MATTER
SULFATES
ATLANTIC OCEAN
BAYS
COASTAL WATERS
ELEMENTS
MATTER
METALS
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
SEAS
SULFUR COMPOUNDS
SURFACE WATERS
TRANSITION ELEMENTS
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
010900 - Coal
Lignite
& Peat- Environmental Aspects