Radiocarbon ages of sediment core PG1414-2 from Beall Lake, Windmill Islands ...

A mid-Holocene climate optimum is inferred from a palaeosalinity reconstruction of a closed saline lake (Beall Lake) from the Windmill Islands, East Antarctica using an expanded diatom salinity weighted averaging (WA) regression and calibration model.The addition of 14 lakes and ponds from the Windm...

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Bibliographic Details
Main Authors: Roberts, Donna, McMinn, Andrew, Cremer, Holger, Gore, Damian B, Melles, Martin
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2004
Subjects:
Hand push corer
WindmillIslands1998
Casey
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158
Antarctic
Arctic
East Antarctic Ice Sheet
East Antarctica
Saline Lake
Vestfold
Vestfold Hills
Windmill Islands
Antarc*
Antarctica
Ice Sheet
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.849261
https://doi.pangaea.de/10.1594/PANGAEA.849261
Description
Summary:A mid-Holocene climate optimum is inferred from a palaeosalinity reconstruction of a closed saline lake (Beall Lake) from the Windmill Islands, East Antarctica using an expanded diatom salinity weighted averaging (WA) regression and calibration model.The addition of 14 lakes and ponds from the Windmill Islands, East Antarctica, to an existing weighted averaging regression and calibration palaeosalinity model of 33 lakes from the Vestfold Hills, East Antarctica expands the number of taxa and lakes and the range of salinity in the existing model and improves the model's predictive ability. This improved model was used to infer Holocene changes in lake water salinity in Beall Lake, Windmill Islands.Six changes in diatom-inferred salinity in Beall Lake are put into broad chronological context based on three radiocarbon dates: as the East Antarctic Ice Sheet (EAIS) retreated from the Windmill Islands during the early Holocene (~9000-8130 corr. yr BP), Beall Lake formed as a melt water-fed freshwater lake, which ... : Supplement to: Roberts, Donna; McMinn, Andrew; Cremer, Holger; Gore, Damian B; Melles, Martin (2004): The Holocene evolution and palaeosalinity history of Beall Lake, Windmill Islands (East Antarctica) using an expanded diatom-based weighted averaging model. Palaeogeography, Palaeoclimatology, Palaeoecology, 208(1-2), 121-140 ...

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