Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Reduced ice extent on the western Antarctic Peninsula at 700-970 cal. yr B.P.

B. L. Hall, T. Koffman and G. H. Denton
Reduced ice extent on the western Antarctic Peninsula at 700-970 cal. yr B.P.
Geology (Boulder) (July 2010) 38 (7): 635-638

Abstract

Rapid warming and consequent ice-shelf collapse have focused attention on the glacial record of the Antarctic Peninsula. Here, we present the first record of terrestrial organic material exposed by recently retreating ice that bears on past glacier extent and climate in this sensitive region. Radiocarbon dates show that ice on Anvers Island was at or behind its present position at 700-970 cal. yr B.P., coincident with ice reduction elsewhere in the Southern Hemisphere. Moreover, the data indicate that present reduced ice extent on the western Antarctic Peninsula is not unprecedented and is similar to that experienced during at least three periods in the last 5600 yr.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 38
Serial Issue: 7
Title: Reduced ice extent on the western Antarctic Peninsula at 700-970 cal. yr B.P.
Affiliation: University of Maine, Department of Earth Sciences, Orono, ME, United States
Pages: 635-638
Published: 201007
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 34
Accession Number: 2010-064231
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sect., 1 table, sketch map
S64°00'00" - S64°00'00", W65°00'00" - W64°30'00"
Secondary Affiliation: Raytheon Polar Services, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201035
Close Modal

or Create an Account

Close Modal
Close Modal