Accession Number : ADP007323

Title :   Holocene Meltwater Variations Recorded in Antarctic Coastal Marine Benthic Assemblages,

Corporate Author : OHIO STATE UNIV COLUMBUS

Personal Author(s) : Berkman, Paul A.

Report Date : MAR 1992

Pagination or Media Count : 10

Abstract : Climate changes can influence the input of meltwater from the polar ice sheets. In Antarctica, signatures of meltwater input during the Holocene may be recorded in the benthic fossils which exist at similar altitudes above sea level in emerged beaches around the continent Interpreting the fossils as meltwater proxy records would be enhanced by understanding the modern ecology of the species in adjacent marine environments. Characteristics of an extant scallop assemblage in West McMurdo Sound, Antarctica, have been evaluated across a summer meltwater gradient to provide examples of meltwater records that may be contained in proximal scallop fossils. Integrating environmental proxies from coastal benthic assemblages around Antarctica, over ecological and geological time scales, is a necessary step in evaluating the marginal responses of the ice sheets to climate changes during the Holocene.

Descriptors :   *CLIMATE, *ANTARCTIC REGIONS, *POLAR REGIONS, ALTITUDE, BEACHES, ECOLOGY, ENVIRONMENTS, FOSSILS, GEOLOGIC AGE DETERMINATION, GRADIENTS, ICE, INPUT, OCEANS, RECORDS, RESPONSE, SEA LEVEL, SHEETS, SIGNATURES, SOUND, SUMMER, TIME, SYMPOSIA, WATER, SNOW, GLACIERS.

Subject Categories : Geography
      Snow, Ice and Permafrost
      Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE