Výsledky vyhledávání - "G. J. K. Dawes"

Magma imaged magnetotellurically beneath an active and an inactive magmatic segment in Afar, Ethiopia

Autor: Shimeles Fisseha, M. Desissa, Kathryn A. Whaler, Sophie Hautot, G. J. K. Dawes, Nick Johnson

Publikováno v: Johnson, N, Whaler, K, Hautot, S, Fisseha, S, Desissa, M & Dawes, G J K 2015, ' Magma imaged magnetotellurically beneath an active and an inactive magmatic segment in Afar, Ethiopia ', Geological Society Special Publications, vol. 420 . https://doi.org/10.1144/SP420.11

This paper presents broadband magnetotelluric data collected along profiles over two magmatic segments comprising part of the subaerial Red Sea arm of the Afar triple junction. One of these segments has been active since late 2005 and the other segme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1491fbb03bebb81c84c101b64424586
https://doi.org/10.1144/sp420.11

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A mantle magma reservoir beneath an incipient mid-ocean ridge in Afar, Ethiopia

Autor: S. Fisseha, Kathy Whaler, M. Desissa, N. E. Johnson, Sophie Hautot, G. J. K. Dawes

Publikováno v: Nature Geoscience
Nature Geoscience, Nature Publishing Group, 2013, 6 (10), pp.861-865. ⟨10.1038/ngeo1925⟩

International audience; Shallow magma reservoirs exist in the crust beneath volcanoes and mid-ocean ridges, yet there are no reports of extensive magma bodies within the uppermost mantle. Indeed the buoyancy of magma should cause it to intrude into t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8b9962996897f3138477ed32689914b
https://hal-insu.archives-ouvertes.fr/insu-00861751

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3-D magnetotelluric inversion and model validation with gravity data for the investigation of flood basalts and associated volcanic rifted margins

Autor: N. Harrop, Kathy Whaler, G. J. K. Dawes, J. Watson, Sophie Hautot, Pascal Tarits, R.T. Single, D.A. Jerram

Publikováno v: Geophysical Journal International
Geophysical Journal International, Oxford University Press (OUP), 2007, 178 (3), pp.1418-1430. ⟨10.1111/j.1365-246X.2007.03453.x⟩

International audience; 20 magnetotelluric (MT) soundings were collected on the Isle of Skye, Scotland to provide a high-resolution three-dimensional (3-D) electrical resistivity model of a volcanic province within the framework of a project jointly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc9f089047988f2496583226e24f496a
https://hal-insu.archives-ouvertes.fr/insu-00572505

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The Effect of a Simple Model of the Pacific Ocean on Sq Variations

Autor: G. J. K. Dawes, Bruce Hobbs

Publikováno v: Journal of geomagnetism and geoelectricity. 32:SI59-SI66

The problem solved is that of electromagnetic induction in a thin non-uniformly conducting hemispherical shell underlain by, and insulated from, a perfectly conducting sphere. Since the shell is assumed thin, only the component of a varying magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c952e9165e974354e220e8fe41a34fe
https://doi.org/10.5636/jgg.32.supplement1_si59

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Magnetotelluric soundings in the Canadian Rocky Mountains

Autor: V.R.S. Hutton, G. J. K. Dawes, D. I. Gough, Jandyr M. Travassos

Publikováno v: Geophysical Journal International. 90:245-263

Summary. Magnetotelluric soundings have been made at 25 stations in the Rocky Mountain Trench (RMT) and Main Ranges near 53"N, close to the centre of a major conductivity anomaly which had been mapped in a magnetovariation array study. Most stations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cebbcad96aa99feb2188ed630e77cfc
https://doi.org/10.1111/j.1365-246x.1987.tb00683.x

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