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Paleoenvironmental History of JoCo Marsh, Jamaica Bay, New YorkSediment cores from JoCo Marsh, located in Jamaica Bay, NY were analyzed for plant macrofossil and foraminifera records. These records reflect changes in vegetation, sea level, climate and human intervention. Better understanding of past environmental changes provides information for future preservation and protection of the estuary. A 2.81 m core was retrieved from JoCo, a high marsh area located on the eastern side of Jamaica Bay. The lithology of the core differs from high levels of sand, with small amounts of clay, in the bottom 0.8 meters, to salt marsh peat in the upper 2 meters of the core. Basal wood in the sand was dated to about 2060 yr BP. Elphidium foraminifera dominate the basal sands, along with Scirpus seeds, wood, and charcoal. These sands include fish scales which are tentatively identified as killifish, suggesting shallow pools. The transition to marsh peat is dominated by sedge seeds, and declines in charcoal. The peat appears to be dominated by salt marsh grasses. At 2 m the foraminifera change to include mainly Trochammina species and other undifferentiated agglutinates. The upper portion of the core is dominated by Salicornia seeds along with Trochammina and Miliammina or Quinqueloculia. The history of this marsh will be integrated with other records of marsh environmental change along the US eastern seaboard.
Document ID
20010087782
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Liberman, Louisa
(NASA Goddard Inst. for Space Studies New York, NY United States)
Peteet, Dorothy
(NASA Goddard Inst. for Space Studies New York, NY United States)
Hansen, James E.
Date Acquired
August 20, 2013
Publication Date
January 14, 2001
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: American Geophysical Union Meeting
Location: Boston, MA
Country: United States
Start Date: May 29, 2001
End Date: May 31, 2001
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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