Middle pleistocene mollusks from St. Lawrence Island and their significance for the paleo-oceanography of the Bering Sea
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Abstract
Drift, evidently of Illinoian age, was deposited on St. Lawrence Island at the margin of an ice cap that covered the highlands of the Chukotka Peninsula of Siberia and spread far eastward on the continental shelf of northern Bering Sea. Underlying the drift on the northwestward part of the island are mollusk-bearing beds deposited during the Kotzebuan Transgression.
A comparison of mollusk faunas from St. Lawrence Island, Chukotka Peninsula, and Kotzebue Sound suggests that the present northward flow through Bering and Anadyr Straits was reversed during the Kotzebuan Transgression. Cold arctic water penetrated southward and southwestward bringing an arctic fauna to the Gulf of Anadyr. Warmer Pacific water probably entered eastern Bering Sea, passed eastward and northeastward around eastern and northern St. Lawrence Island, and then became entrained in the southward currents that passed through Anadyr Strait.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Middle pleistocene mollusks from St. Lawrence Island and their significance for the paleo-oceanography of the Bering Sea |
| Series title | Quaternary Research |
| DOI | 10.1016/0033-5894(72)90033-6 |
| Volume | 2 |
| Issue | 2 |
| Year Published | 1972 |
| Language | English |
| Publisher | Elsevier |
| Description | 16 p. |
| First page | 119 |
| Last page | 134 |
| Google Analytic Metrics | Metrics page |