Table 1. Radiocarbon dates from TPC522 and box core surface samples from BC521 and BC523 ...

Recent intensification of wind-driven upwelling of warm upper circumpolar deep water (UCDW) has been linked to accelerated melting of West Antarctic ice shelves and glaciers. To better assess the long term relationship between UCDWupwelling and the stability of theWest Antarctic Ice Sheet, we presen...

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Bibliographic Details
Main Authors: Peck, Victoria L, Allen, Claire Susannah, Kender, Sev, McClymont, Erin L, Hodgson, Dominic A
Format: Dataset
Language:English
Published: PANGAEA 2015
Subjects:
Event label
Laboratory code/label
DEPTH, sediment/rock
Age, dated material
Age, dated
Age, dated standard deviation
Age, dated, range, minimum
Age, dated, range, maximum
Carbon, organic, total
δ13C, organic carbon
Box corer
Piston corer
Age, calibrated
JR20080221
James Clark Ross
Antarc*
Antarctic
Antarctic Peninsula
Ice Sheet
Ice Shelves
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.848121
https://doi.pangaea.de/10.1594/PANGAEA.848121
Description
Summary:Recent intensification of wind-driven upwelling of warm upper circumpolar deep water (UCDW) has been linked to accelerated melting of West Antarctic ice shelves and glaciers. To better assess the long term relationship between UCDWupwelling and the stability of theWest Antarctic Ice Sheet, we present a multi-proxy reconstruction of surface and bottom water conditions in Marguerite Bay, West Antarctic Peninsula (WAP), through the Holocene. A combination of sedimentological, diatom and foraminiferal records are, for the first time, presented together to infer a decline in UCDW influence within Marguerite Bay through the early to mid Holocene and the dominance of cyclic forcing in the late Holocene. Extensive glacial melt, limited sea ice and enhanced primary productivity between 9.7 and 7.0 ka BP is considered to be most consistent with persistent incursions of UCDW through Marguerite Trough. From 7.0 ka BP sea ice seasons increased and productivity decreased, suggesting that UCDW influence within Marguerite ... : Supplement to: Peck, Victoria L; Allen, Claire Susannah; Kender, Sev; McClymont, Erin L; Hodgson, Dominic A (2015): Oceanographic variability on the West Antarctic Peninsula during the Holocene and the influence of upper circumpolar deep water. Quaternary Science Reviews, 119, 54-65 ...

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