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A series of five radiocarbon dates obtained from samples taken along the base of the lagoon between the Brigantine City Barrier and the mainland indicates a rate of submergence of 3 meters per millennium between 6090 and 2600 years before the present. During the last 2600 years the average submergence has slowed down to only 1.2 to 1.4 meters per millennium; the general picture of a rapid rise and the subsequent slackening is in agreement with results published for the New England area.
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Stuiver et al. (1963) studied this question.
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