Geochemistry on sediment profile PS69/335
During RV Polarstern cruise ANT-XXIII/4 in 2006, a gravity core (PS69/335-2) and a giant box core (PS69/335-1) were retrieved from Maxwell Bay off King George Island (KGI). Comprehensive geochemical (bulk parameters, quantitative XRF, Inductively Coupled Plasma Mass Spectrometry) and radiometric dat...
Main Authors: | , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
PANGAEA
2011
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.759993 https://doi.org/10.1594/PANGAEA.759993 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.759993 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.759993 2024-09-15T17:42:32+00:00 Geochemistry on sediment profile PS69/335 Monien, Patrick Schnetger, Bernhard Brumsack, Hans-Jürgen Hass, H Christian Kuhn, Gerhard MEDIAN LATITUDE: -62.258450 * MEDIAN LONGITUDE: -58.772800 * SOUTH-BOUND LATITUDE: -62.258500 * WEST-BOUND LONGITUDE: -58.773200 * NORTH-BOUND LATITUDE: -62.258400 * EAST-BOUND LONGITUDE: -58.772400 * DATE/TIME START: 2006-04-06T10:19:00 * DATE/TIME END: 2006-04-06T11:00:00 2011 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.759993 https://doi.org/10.1594/PANGAEA.759993 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.759993 https://doi.org/10.1594/PANGAEA.759993 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Monien, Patrick; Schnetger, Bernhard; Brumsack, Hans-Jürgen; Hass, H Christian; Kuhn, Gerhard (2011): A geochemical record of late Holocene paleoenvironmental changes at King George Island (maritime Antarctica). Antarctic Science, 23(3), 255-267, https://doi.org/10.1017/S095410201100006X ANT-XXIII/4 GC Giant box corer GKG Gravity corer IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Polarstern Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/335-1 PS69/335-2 SPP1158 dataset publication series 2011 ftpangaea https://doi.org/10.1594/PANGAEA.75999310.1017/S095410201100006X 2024-08-21T00:02:25Z During RV Polarstern cruise ANT-XXIII/4 in 2006, a gravity core (PS69/335-2) and a giant box core (PS69/335-1) were retrieved from Maxwell Bay off King George Island (KGI). Comprehensive geochemical (bulk parameters, quantitative XRF, Inductively Coupled Plasma Mass Spectrometry) and radiometric dating analyses (14C, 210Pb) were performed on both cores. A comparison with geochemical data from local bedrock demonstrates a mostly detrital origin for the sediments, but also points to an overprint from changing bioproductivity in the overlying water column in addition to early diagenetic processes. Furthermore, ten tephra layers that were most probably derived from volcanic activity on Deception Island were identified. Variations in the vertical distribution of selected elements in Maxwell Bay sediments further indicate a shift in source rock provenance as a result of changing glacier extents during the past c. 1750 years that may be linked to the Little Ice Age and the Medieval Warm Period. Whereas no evidence for a significant increase in chemical weathering rates was found, 210Pb data revealed that mass accumulation rates in Maxwell Bay have almost tripled since the 1940s (0.66 g cm-2 yr-1 in AD 2006), which is probably linked to rapid glacier retreat in this region due to recent warming. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Deception Island King George Island Maxwell Bay Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-58.773200,-58.772400,-62.258400,-62.258500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XXIII/4 GC Giant box corer GKG Gravity corer IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Polarstern Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/335-1 PS69/335-2 SPP1158 |
spellingShingle |
ANT-XXIII/4 GC Giant box corer GKG Gravity corer IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Polarstern Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/335-1 PS69/335-2 SPP1158 Monien, Patrick Schnetger, Bernhard Brumsack, Hans-Jürgen Hass, H Christian Kuhn, Gerhard Geochemistry on sediment profile PS69/335 |
topic_facet |
ANT-XXIII/4 GC Giant box corer GKG Gravity corer IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Polarstern Potter Cove King George Island Antarctic Peninsula Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/335-1 PS69/335-2 SPP1158 |
description |
During RV Polarstern cruise ANT-XXIII/4 in 2006, a gravity core (PS69/335-2) and a giant box core (PS69/335-1) were retrieved from Maxwell Bay off King George Island (KGI). Comprehensive geochemical (bulk parameters, quantitative XRF, Inductively Coupled Plasma Mass Spectrometry) and radiometric dating analyses (14C, 210Pb) were performed on both cores. A comparison with geochemical data from local bedrock demonstrates a mostly detrital origin for the sediments, but also points to an overprint from changing bioproductivity in the overlying water column in addition to early diagenetic processes. Furthermore, ten tephra layers that were most probably derived from volcanic activity on Deception Island were identified. Variations in the vertical distribution of selected elements in Maxwell Bay sediments further indicate a shift in source rock provenance as a result of changing glacier extents during the past c. 1750 years that may be linked to the Little Ice Age and the Medieval Warm Period. Whereas no evidence for a significant increase in chemical weathering rates was found, 210Pb data revealed that mass accumulation rates in Maxwell Bay have almost tripled since the 1940s (0.66 g cm-2 yr-1 in AD 2006), which is probably linked to rapid glacier retreat in this region due to recent warming. |
format |
Other/Unknown Material |
author |
Monien, Patrick Schnetger, Bernhard Brumsack, Hans-Jürgen Hass, H Christian Kuhn, Gerhard |
author_facet |
Monien, Patrick Schnetger, Bernhard Brumsack, Hans-Jürgen Hass, H Christian Kuhn, Gerhard |
author_sort |
Monien, Patrick |
title |
Geochemistry on sediment profile PS69/335 |
title_short |
Geochemistry on sediment profile PS69/335 |
title_full |
Geochemistry on sediment profile PS69/335 |
title_fullStr |
Geochemistry on sediment profile PS69/335 |
title_full_unstemmed |
Geochemistry on sediment profile PS69/335 |
title_sort |
geochemistry on sediment profile ps69/335 |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.759993 https://doi.org/10.1594/PANGAEA.759993 |
op_coverage |
MEDIAN LATITUDE: -62.258450 * MEDIAN LONGITUDE: -58.772800 * SOUTH-BOUND LATITUDE: -62.258500 * WEST-BOUND LONGITUDE: -58.773200 * NORTH-BOUND LATITUDE: -62.258400 * EAST-BOUND LONGITUDE: -58.772400 * DATE/TIME START: 2006-04-06T10:19:00 * DATE/TIME END: 2006-04-06T11:00:00 |
long_lat |
ENVELOPE(-58.773200,-58.772400,-62.258400,-62.258500) |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Deception Island King George Island Maxwell Bay Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Deception Island King George Island Maxwell Bay Sea ice |
op_source |
Supplement to: Monien, Patrick; Schnetger, Bernhard; Brumsack, Hans-Jürgen; Hass, H Christian; Kuhn, Gerhard (2011): A geochemical record of late Holocene paleoenvironmental changes at King George Island (maritime Antarctica). Antarctic Science, 23(3), 255-267, https://doi.org/10.1017/S095410201100006X |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.759993 https://doi.org/10.1594/PANGAEA.759993 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.75999310.1017/S095410201100006X |
_version_ |
1810489146467155968 |