Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...

© 2017 The Icelandic mantle plume has had a significant influence on the geologic and oceanographic evolution of the North Atlantic Ocean during Cenozoic times. Full-waveform tomographic imaging of this region shows that the planform of this plume has a complex irregular shape with significant shear...

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Main Authors: Schoonman, CM, White, NJ, Pritchard, D
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier BV 2017
Subjects:
Online Access:https://dx.doi.org/10.17863/cam.43697
https://www.repository.cam.ac.uk/handle/1810/296649
id ftdatacite:10.17863/cam.43697
record_format openpolar
spelling ftdatacite:10.17863/cam.43697 2024-02-04T10:01:30+01:00 Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ... Schoonman, CM White, NJ Pritchard, D 2017 https://dx.doi.org/10.17863/cam.43697 https://www.repository.cam.ac.uk/handle/1810/296649 en eng Elsevier BV open.access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 viscous fingering Iceland mantle plumes dynamic topography Article ScholarlyArticle JournalArticle article-journal 2017 ftdatacite https://doi.org/10.17863/cam.43697 2024-01-05T14:28:33Z © 2017 The Icelandic mantle plume has had a significant influence on the geologic and oceanographic evolution of the North Atlantic Ocean during Cenozoic times. Full-waveform tomographic imaging of this region shows that the planform of this plume has a complex irregular shape with significant shear wave velocity anomalies lying beneath the lithospheric plates at a depth of 100–200 km. The distribution of these anomalies suggests that about five horizontal fingers extend radially beneath the fringing continental margins. The best-imaged fingers lie beneath the British Isles and beneath western Norway where significant departures from crustal isostatic equilibrium have been measured. Here, we propose that these radial fingers are generated by a phenomenon known as the Saffman–Taylor instability. Experimental and theoretical analyses show that fingering occurs when a less viscous fluid is injected into a more viscous fluid. In radial, miscible fingering, the wavelength and number of fingers are controlled by ... Article in Journal/Newspaper Iceland North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Norway
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language English
topic viscous fingering
Iceland
mantle plumes
dynamic topography
spellingShingle viscous fingering
Iceland
mantle plumes
dynamic topography
Schoonman, CM
White, NJ
Pritchard, D
Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...
topic_facet viscous fingering
Iceland
mantle plumes
dynamic topography
description © 2017 The Icelandic mantle plume has had a significant influence on the geologic and oceanographic evolution of the North Atlantic Ocean during Cenozoic times. Full-waveform tomographic imaging of this region shows that the planform of this plume has a complex irregular shape with significant shear wave velocity anomalies lying beneath the lithospheric plates at a depth of 100–200 km. The distribution of these anomalies suggests that about five horizontal fingers extend radially beneath the fringing continental margins. The best-imaged fingers lie beneath the British Isles and beneath western Norway where significant departures from crustal isostatic equilibrium have been measured. Here, we propose that these radial fingers are generated by a phenomenon known as the Saffman–Taylor instability. Experimental and theoretical analyses show that fingering occurs when a less viscous fluid is injected into a more viscous fluid. In radial, miscible fingering, the wavelength and number of fingers are controlled by ...
format Article in Journal/Newspaper
author Schoonman, CM
White, NJ
Pritchard, D
author_facet Schoonman, CM
White, NJ
Pritchard, D
author_sort Schoonman, CM
title Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...
title_short Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...
title_full Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...
title_fullStr Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...
title_full_unstemmed Radial viscous fingering of hot asthenosphere within the Icelandic plume beneath the North Atlantic Ocean ...
title_sort radial viscous fingering of hot asthenosphere within the icelandic plume beneath the north atlantic ocean ...
publisher Elsevier BV
publishDate 2017
url https://dx.doi.org/10.17863/cam.43697
https://www.repository.cam.ac.uk/handle/1810/296649
geographic Norway
geographic_facet Norway
genre Iceland
North Atlantic
genre_facet Iceland
North Atlantic
op_rights open.access
Creative Commons Attribution Non Commercial No Derivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
cc-by-nc-nd-4.0
http://purl.org/coar/access_right/c_abf2
op_doi https://doi.org/10.17863/cam.43697
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