Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia
Solving the sea–level equation for a Maxwell Earth, we analyze the sensitivity of Holocene sea–level records in SE Tunisia to the time–history of remote ice sheets. Assuming that mantle viscosity increases moderately with depth, we find that in this region the sea–level variations driven by the Nort...
Published in: | Pure and Applied Geophysics |
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2009
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Online Access: | http://hdl.handle.net/11576/2302456 https://doi.org/10.1007/s00024-009-0488-z http://link.springer.com/article/10.1007/s00024-009-0488-z |
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ftunivurbino:oai:ora.uniurb.it:11576/2302456 2024-04-14T08:02:00+00:00 Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia STOCCHI P COLLEONI F SPADA, GIORGIO Stocchi, P Colleoni, F Spada, Giorgio 2009 STAMPA http://hdl.handle.net/11576/2302456 https://doi.org/10.1007/s00024-009-0488-z http://link.springer.com/article/10.1007/s00024-009-0488-z eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000269118200009 volume:166 issue:8-9 firstpage:1319 lastpage:1341 numberofpages:23 journal:PURE AND APPLIED GEOPHYSICS http://hdl.handle.net/11576/2302456 doi:10.1007/s00024-009-0488-z info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-69249222626 http://link.springer.com/article/10.1007/s00024-009-0488-z Catastrophic rise events glacio–isostatic adjustment Holocene sea–level change smantle viscosity South east Tunisia info:eu-repo/semantics/article 2009 ftunivurbino https://doi.org/10.1007/s00024-009-0488-z 2024-03-21T17:08:45Z Solving the sea–level equation for a Maxwell Earth, we analyze the sensitivity of Holocene sea–level records in SE Tunisia to the time–history of remote ice sheets. Assuming that mantle viscosity increases moderately with depth, we find that in this region the sea–level variations driven by the Northern Hemisphere ice sheets cancel, so that the late–Holocene sea–level high–stand suggested by the geological record merely reflects the melting history of Antarctica. New insight into the history of this ice sheet is obtained analyzing the information contained in a revised set of relative sea–level observations for sites across the Mediterranean covering the last 8 kyrs. From a trial–and–error misfit analysis, it holds true that in this region the match between model predictions and observations improves when the volume of water released from Antarctica is well below the value imposed by the ICE3G chronology and when a sudden meltwater pulse is allowed between 8 and 7 kyrs before present, corresponding to the epoch of the catastrophic rise event known as CRE3. Article in Journal/Newspaper Antarc* Antarctica Ice Sheet Università degli Studi di Urbino: CINECA IRIS Pure and Applied Geophysics 166 8-9 1319 1341 |
institution |
Open Polar |
collection |
Università degli Studi di Urbino: CINECA IRIS |
op_collection_id |
ftunivurbino |
language |
English |
topic |
Catastrophic rise events glacio–isostatic adjustment Holocene sea–level change smantle viscosity South east Tunisia |
spellingShingle |
Catastrophic rise events glacio–isostatic adjustment Holocene sea–level change smantle viscosity South east Tunisia STOCCHI P COLLEONI F SPADA, GIORGIO Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia |
topic_facet |
Catastrophic rise events glacio–isostatic adjustment Holocene sea–level change smantle viscosity South east Tunisia |
description |
Solving the sea–level equation for a Maxwell Earth, we analyze the sensitivity of Holocene sea–level records in SE Tunisia to the time–history of remote ice sheets. Assuming that mantle viscosity increases moderately with depth, we find that in this region the sea–level variations driven by the Northern Hemisphere ice sheets cancel, so that the late–Holocene sea–level high–stand suggested by the geological record merely reflects the melting history of Antarctica. New insight into the history of this ice sheet is obtained analyzing the information contained in a revised set of relative sea–level observations for sites across the Mediterranean covering the last 8 kyrs. From a trial–and–error misfit analysis, it holds true that in this region the match between model predictions and observations improves when the volume of water released from Antarctica is well below the value imposed by the ICE3G chronology and when a sudden meltwater pulse is allowed between 8 and 7 kyrs before present, corresponding to the epoch of the catastrophic rise event known as CRE3. |
author2 |
Stocchi, P Colleoni, F Spada, Giorgio |
format |
Article in Journal/Newspaper |
author |
STOCCHI P COLLEONI F SPADA, GIORGIO |
author_facet |
STOCCHI P COLLEONI F SPADA, GIORGIO |
author_sort |
STOCCHI P |
title |
Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia |
title_short |
Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia |
title_full |
Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia |
title_fullStr |
Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia |
title_full_unstemmed |
Bounds on the time-history and Holocene mass budget of Antarctica from sea-level records in SE Tunisia |
title_sort |
bounds on the time-history and holocene mass budget of antarctica from sea-level records in se tunisia |
publishDate |
2009 |
url |
http://hdl.handle.net/11576/2302456 https://doi.org/10.1007/s00024-009-0488-z http://link.springer.com/article/10.1007/s00024-009-0488-z |
genre |
Antarc* Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctica Ice Sheet |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000269118200009 volume:166 issue:8-9 firstpage:1319 lastpage:1341 numberofpages:23 journal:PURE AND APPLIED GEOPHYSICS http://hdl.handle.net/11576/2302456 doi:10.1007/s00024-009-0488-z info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-69249222626 http://link.springer.com/article/10.1007/s00024-009-0488-z |
op_doi |
https://doi.org/10.1007/s00024-009-0488-z |
container_title |
Pure and Applied Geophysics |
container_volume |
166 |
container_issue |
8-9 |
container_start_page |
1319 |
op_container_end_page |
1341 |
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1796312022339551232 |