Document Type

Article

Publication Title

Antarctic Science

Publication Date

9-1-2004

First Page

339

Last Page

344

Issue Number

3

Volume Number

16

Abstract/ Summary

Raised beach ridges on Livingston Island of the South Shetland Islands display variations in both quantity and source of ice rafted detritus (IRD) received over time. Whereas the modem beach exhibits little IRD, all of which is of local origin, the next highest beach (similar to250 C-14 yr BP) has large amounts, some of which comes from as far away as the Antarctic Peninsula. Significant quantities of IRD also were deposited similar to 1750 C-14 yr BP. Both time periods coincide with generally cooler regional conditions and, at least in the case of the similar to250 yr old beach, local glacial advance. We suggest that the increases in ice rafting may reflect periods of greater glacial activity, altered ocean circulation, and/or greater iceberg preservation during the late Holocene. Limited IRD and lack of far-travelled erratics on the modem beach are both consistent with the ongoing warming trend in the Antarctic Peninsula region.

Citation/Publisher Attribution

Hall, BL, and Perry, ER, 2004, Variations in Ice Rafted Detritus on Beaches in the South Shetland Islands: A Possible Climate Proxy: Antarctic Science, v. 16, p. 339-344. Available on publisher's site at: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=247881&fulltextType=RA&fileId=S0954102004002147

Publisher Statement

© Copyright 2004 by Cambridge University Press

DOI

10.1017/S0954102004002147

Version

publisher's version of the published document

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