DOI: 10.1126/science.250.4986.1383. A Possible Younger Dryas Record in Southeastern Alaska

A Possible Younger Dryas Record in Southeastern Alaska

10.1126/science.250.4986.1383

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

A stratigraphic record of climatic cooling equal in timing and severity to the Younger Dryas event of the North Atlantic region has been obtained from lacustrine sediments in the Glacier Bay area of southeastern Alaska. Fossil pollen show that a late Wisconsin pine parkland was replaced about 10,800 years ago by shrub- and herb-dominated tundra, which lasted until about 9,800 years ago. This vegetational change is matched by geochemical evidence for loss of organic matter from catchment soils and increased mineral erosion. If this event represents the Younger Dryas, then an explanation for a hemisphere-wide propagation of a North Atlantic climatic perturbation must be sought.

Bibliography

Engstrom, D. R., Hansen, B. C. S., & Wright, H. E. (1990). A Possible Younger Dryas Record in Southeastern Alaska. Science, 250(4986), 1383â1385.

Authors 3

D. R. Engstrom (first)
B. C. S. Hansen (additional)
H. E. Wright (additional)

References 37 Referenced 110

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ASSE, F, NATURE 346: 141 (1990). (10.1038/346141a0) / NATURE (1990)
BARNOSKY, C.W., A RECORD OF LATE QUATERNARY VEGETATION FROM DAVIS LAKE, SOUTHERN PUGET LOWLAND, WASHINGTON, QUATERNARY RESEARCH 16: 221 (1981). (10.1016/0033-5894(81)90046-6) / QUATERNARY RESEARCH (1981)
BJORCK, S, J QUATERNARY SCI 2: 133 (1987). (10.1002/jqs.3390020206) / J QUATERNARY SCI (1987)
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CLAGUE, J.J., GEOL SURV CAN PAP 8035: 1 (1981). / GEOL SURV CAN PAP (1981)
CWYNAR, L.C., ACCELERATOR MASS-SPECTROMETER AGES FOR LATE-GLACIAL EVENTS AT BALLYBETAGH, IRELAND, QUATERNARY RESEARCH 31: 377 (1989). (10.1016/0033-5894(89)90044-6) / QUATERNARY RESEARCH (1989)
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HEBDA, R.J., LATE-GLACIAL AND POSTGLACIAL VEGETATION HISTORY AT BEAR COVE BOG, NORTHEAST VANCOUVER ISLAND, BRITISH-COLUMBIA, CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE 61: 3172 (1983). / CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE (1983)
HEUSSER, C.J., QUATERNARY VEGETATION, CLIMATE, AND GLACIATION OF HOH RIVER VALLEY, WASHINGTON, GEOLOGICAL SOCIETY OF AMERICA BULLETIN 85: 1547 (1974). (10.1130/0016-7606(1974)85<1547:QVCAGO>2.0.CO;2) / GEOLOGICAL SOCIETY OF AMERICA BULLETIN (1974)
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10.1016/0277-3791(89)90033-4

Dates

Type	When
Created	18 years, 10 months ago (Oct. 5, 2006, 6:10 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 10:16 a.m.)
Indexed	1 month, 1 week ago (July 16, 2025, 8:56 a.m.)
Issued	34 years, 8 months ago (Dec. 7, 1990)
Published	34 years, 8 months ago (Dec. 7, 1990)
Published Print	34 years, 8 months ago (Dec. 7, 1990)

Funders 0

None

BibTeX

@article{Engstrom_1990, title={A Possible Younger Dryas Record in Southeastern Alaska}, volume={250}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.250.4986.1383}, DOI={10.1126/science.250.4986.1383}, number={4986}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Engstrom, D. R. and Hansen, B. C. S. and Wright, H. E.}, year={1990}, month=dec, pages={1383–1385} }

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