Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence.
Integration of geological data and glacio-isostatic adjustment (GIA) modelling shows that it is possible to decouple complex mechanisms of relative sea-level (RSL) change in a tectonically active glacial environment. We model a simplest solution in which RSL changes in upper Cook Inlet, Alaska, are...
Published in: | Earth and Planetary Science Letters |
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Elsevier
2012
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Online Access: | http://dro.dur.ac.uk/10600/ http://dro.dur.ac.uk/10600/1/10600.pdf https://doi.org/10.1016/j.epsl.2011.09.048 |
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:10600 2023-05-15T16:20:38+02:00 Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. Barlow, N.L.M. Shennan, I. Long, A.J. 2012-01-01 application/pdf http://dro.dur.ac.uk/10600/ http://dro.dur.ac.uk/10600/1/10600.pdf https://doi.org/10.1016/j.epsl.2011.09.048 unknown Elsevier dro:10600 issn:0012-821X doi:10.1016/j.epsl.2011.09.048 http://dro.dur.ac.uk/10600/ http://dx.doi.org/10.1016/j.epsl.2011.09.048 http://dro.dur.ac.uk/10600/1/10600.pdf Earth and planetary science letters, 2012, Vol.315-316, pp.62-75 [Peer Reviewed Journal] Earthquake deformation cycle Glacial isostatic adjustment Little Ice Age Relative sea-level change Diatoms Dating. Article PeerReviewed 2012 ftunivdurham https://doi.org/10.1016/j.epsl.2011.09.048 2020-05-28T22:29:38Z Integration of geological data and glacio-isostatic adjustment (GIA) modelling shows that it is possible to decouple complex mechanisms of relative sea-level (RSL) change in a tectonically active glacial environment. We model a simplest solution in which RSL changes in upper Cook Inlet, Alaska, are a combination of the interplay of tectonic and isostatic processes driven by the unique rheology of this tectonically active location. We calculate interseismic uplift during latter part of the penultimate earthquake cycle to vary from 0.3 to 0.7 mm/yr. Diatom based reconstructions of RSL from tidal marsh sediment sequences coupled with detailed age models, from AD 1400 to the AD 1964 great earthquake, show deviations from a purely tectonically driven model of regional RSL. Glacial isostatic modelling, constrained by GPS data, predicts up to 70 cm sea-level change due to mountain glacier mass balance changes during the Little Ice Age. Misfits between the GIA model predictions and RSL reconstructions in the 19th and 20th century highlight that the tidal marshes of upper Cook Inlet potentially record a hemispheric-wide acceleration in sea level and that other more complex Earth process combinations may contribute to regional RSL change. Article in Journal/Newspaper glacier Alaska Durham University: Durham Research Online Earth and Planetary Science Letters 315-316 62 75 |
institution |
Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
topic |
Earthquake deformation cycle Glacial isostatic adjustment Little Ice Age Relative sea-level change Diatoms Dating. |
spellingShingle |
Earthquake deformation cycle Glacial isostatic adjustment Little Ice Age Relative sea-level change Diatoms Dating. Barlow, N.L.M. Shennan, I. Long, A.J. Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. |
topic_facet |
Earthquake deformation cycle Glacial isostatic adjustment Little Ice Age Relative sea-level change Diatoms Dating. |
description |
Integration of geological data and glacio-isostatic adjustment (GIA) modelling shows that it is possible to decouple complex mechanisms of relative sea-level (RSL) change in a tectonically active glacial environment. We model a simplest solution in which RSL changes in upper Cook Inlet, Alaska, are a combination of the interplay of tectonic and isostatic processes driven by the unique rheology of this tectonically active location. We calculate interseismic uplift during latter part of the penultimate earthquake cycle to vary from 0.3 to 0.7 mm/yr. Diatom based reconstructions of RSL from tidal marsh sediment sequences coupled with detailed age models, from AD 1400 to the AD 1964 great earthquake, show deviations from a purely tectonically driven model of regional RSL. Glacial isostatic modelling, constrained by GPS data, predicts up to 70 cm sea-level change due to mountain glacier mass balance changes during the Little Ice Age. Misfits between the GIA model predictions and RSL reconstructions in the 19th and 20th century highlight that the tidal marshes of upper Cook Inlet potentially record a hemispheric-wide acceleration in sea level and that other more complex Earth process combinations may contribute to regional RSL change. |
format |
Article in Journal/Newspaper |
author |
Barlow, N.L.M. Shennan, I. Long, A.J. |
author_facet |
Barlow, N.L.M. Shennan, I. Long, A.J. |
author_sort |
Barlow, N.L.M. |
title |
Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. |
title_short |
Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. |
title_full |
Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. |
title_fullStr |
Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. |
title_full_unstemmed |
Relative sea-level response to Little Ice Age ice mass change in south central Alaska : reconciling model predictions and geological evidence. |
title_sort |
relative sea-level response to little ice age ice mass change in south central alaska : reconciling model predictions and geological evidence. |
publisher |
Elsevier |
publishDate |
2012 |
url |
http://dro.dur.ac.uk/10600/ http://dro.dur.ac.uk/10600/1/10600.pdf https://doi.org/10.1016/j.epsl.2011.09.048 |
genre |
glacier Alaska |
genre_facet |
glacier Alaska |
op_source |
Earth and planetary science letters, 2012, Vol.315-316, pp.62-75 [Peer Reviewed Journal] |
op_relation |
dro:10600 issn:0012-821X doi:10.1016/j.epsl.2011.09.048 http://dro.dur.ac.uk/10600/ http://dx.doi.org/10.1016/j.epsl.2011.09.048 http://dro.dur.ac.uk/10600/1/10600.pdf |
op_doi |
https://doi.org/10.1016/j.epsl.2011.09.048 |
container_title |
Earth and Planetary Science Letters |
container_volume |
315-316 |
container_start_page |
62 |
op_container_end_page |
75 |
_version_ |
1766008565990948864 |