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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Evidence for a postglacial low relative sea-level stand in the drowned delta of the Merrimack River, Western Gulf of Maine

Auteurs :
OLDALE, R. N.
WOMMACK, L. E.
WHITNEY, A. B.

Description :
A submerged delta of the Merrimack River, located offshore between Cape Ann, Massachusetts, and the New Hampshire border, indicates a postglacial low relative sea-level stand of about 47 m. The low stand is inferred to date to 10,500 yr B.P., but a lack of age control makes this assignment uncertain. A curve based on a late Wisconsinan, high relative sea-level stand of + 32 m at 13,000 yr B.P., a low stand of 47 m at 10,500 yr B.P., and younger radiocarbon dates related to sea-level rise indicates an early postglacial crustal rise of at least 5 m per century.


Type de document :
Article de périodique

Source :
Quaternary research New York, 1983, vol. 19, n°. 3, p. 325-336, Références bibliographiques : 14 réf.

Date :
1983

Langue :
Anglais
Droits :
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