Granulometry of two sediment cores from Maxwell Bay, South Shetland Islands, West Antarctica ...

The climate evolution of the South Shetland Islands during the last c. 2000 years is inferred from the multiproxy analyses of a long (928 cm) sediment core retrieved from Maxwell Bay off King George Island. The vertical sediment flux at the core location is controlled by summer melting processes tha...

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Bibliographic Details
Main Authors: Hass, H Christian, Kuhn, Gerhard, Monien, Patrick, Brumsack, Hans-Jürgen, Forwick, Matthias
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2010
Subjects:
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158
Antarc*
Antarctic
Antarctica
King George Island
Maxwell Bay
Sea ice
South Shetland Islands
West Antarctica
Online Access:https://dx.doi.org/10.1594/pangaea.788113
https://doi.pangaea.de/10.1594/PANGAEA.788113
Description
Summary:The climate evolution of the South Shetland Islands during the last c. 2000 years is inferred from the multiproxy analyses of a long (928 cm) sediment core retrieved from Maxwell Bay off King George Island. The vertical sediment flux at the core location is controlled by summer melting processes that cause sediment-laden meltwater plumes to form. These leave a characteristic signature in the sediments of NE Maxwell Bay. We use this signature to distinguish summer and winter-dominated periods. During the Medieval Warm Period, sediments are generally finer which indicates summer-type conditions. In contrast, during the Little Ice Age (LIA) sediments are generally coarser and are indicative of winter-dominated conditions. Comparison with Northern and Southern Hemisphere, Antarctic, and global temperature reconstructions reveals that the mean grain-size curve from Maxwell Bay closely resembles the curve of the global temperature reconstruction. We show that the medieval warming occurred earlier in the Southern ... : Supplement to: Hass, H Christian; Kuhn, Gerhard; Monien, Patrick; Brumsack, Hans-Jürgen; Forwick, Matthias (2010): Climate fluctuations during the past two millennia as recorded in sediments from Maxwell Bay, South Shetland Islands, West Antarctica. In: Howe, J; Austin, WEN; Paetzel, M and Forwick, M (eds.): Fjordic Depositional Systems and Archives, Geological Society of London Special Publication, 344, 243-260 ...

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