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Ancient channels of the Susquehanna River beneath Chesapeake Bay and the Delmarva Peninsula

Geological Society of America Bulletin

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, , , ,

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Abstract

The trunk channels of each system are 2 to 4 km wide and are incised 30 to 50 m into underlying strata; they have irregular longitudinal profiles and very low gradients within the Chesapeake Bay area. The youngest paleochannel is clearly of late Wisconsinan age, about 18 ka, and the intermediate one appears to be late Illinoian in age, or about 150 ka. The age of the oldest is in the range of about 200 to 400 ka. The three paleochannel systems imply a dynamic coastal-plain environment and at least two previous generations of the Chesapeake Bay. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ancient channels of the Susquehanna River beneath Chesapeake Bay and the Delmarva Peninsula
Series title:
Geological Society of America Bulletin
Volume
102
Issue:
9
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1268
Last page:
1279
Number of Pages:
12