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A chronology of Late-Pleistocene permafrost events in southern New Jersey, eastern USA

Permafrost and Periglacial Processes

By:
, , , and
DOI: 10.1002/ppp.572

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Abstract

Frost fissures, filled with wind-abraded sand and mineral soil, and numerous small-scale non-diastrophic deformations, occur in the near-surface sediments of the Pine Barrens of southern New Jersey. The fissures are the result of thermal-contraction cracking and indicate the previous existence of either permafrost or seasonally-frozen ground. The deformations reflect thermokarst activity that occurred when permafrost degraded, icy layers melted and density-controlled mass displacements occurred in water-saturated sediments. Slopes and surficial materials of the area reflect these cold-climate conditions. Optically-stimulated luminescence permits construction of a tentative Late-Pleistocene permafrost chronology. This indicates Illinoian, Early-Wisconsinan and Late-Wisconsinan episodes of permafrost and/or deep seasonal frost and a Middle-Wisconsinan thermokarst event. Copyright ?? 2007 John Wiley & Sons, Ltd.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
A chronology of Late-Pleistocene permafrost events in southern New Jersey, eastern USA
Series title:
Permafrost and Periglacial Processes
DOI:
10.1002/ppp.572
Volume
18
Issue:
1
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Permafrost and Periglacial Processes
First page:
49
Last page:
59
Number of Pages:
11