Výsledky vyhledávání - "Graham K. Westbrook"

Akademický článek

Variability of Acoustically Evidenced Methane Bubble Emissions Offshore Western Svalbard

Autor: Mario E. Veloso‐Alarcón, Pär Jansson, Marc De Batist, Timothy A. Minshull, Graham K. Westbrook, Heiko Pälike, Stefan Bünz, Ian Wright, Jens Greinert

Publikováno v: Geophysical Research Letters, Vol 46, Iss 15, Pp 9072-9081 (2019)

Abstract Large reservoirs of methane present in Arctic marine sediments are susceptible to rapid warming, promoting increasing methane emissions. Gas bubbles in the water column can be detected, and flow rates can be quantified using hydroacoustic su

Externí odkaz: https://doaj.org/article/c77d5f85182247658148dc93dcb55762

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Akademický článek

Structure and Drivers of Cold Seep Ecosystems

Autor: Jean-Paul Foucher, Graham K. Westbrook, Antje Boetius, Silvia Ceramicola, Stéphanie Dupré, Jean Mascle, Jürgen Mienert, Olaf Pfannkuche, Catherine Pierre, Daniel Praeg

Publikováno v: Oceanography, Vol 22, Iss 1, Pp 92-109 (2009)

Submarine hydrocarbon seeps are geologically driven "hotspots" of increased biological activity on the seabed. As part of the HERMES project, several sites of natural hydrocarbon seepage in the European seas were investigated in detail, including mud

Externí odkaz: https://doaj.org/article/57c53b3ace74432f94de301989586ea9

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Variability of Acoustically Evidenced Methane Bubble Emissions Offshore Western Svalbard

Autor: Marc De Batist, Pär Jansson, Ian C. Wright, Heiko Pälike, Graham K. Westbrook, Timothy A. Minshull, Jens Greinert, Stefan Bünz, Mario E. Veloso-Alarcón

Publikováno v: Geophysical Research Letters, 46 (15). pp. 9072-9081.

Large reservoirs of methane present in Arctic marine sediments are susceptible to rapid warming, promoting increasing methane emissions. Gas bubbles in the water column can be detected, and flow rates can be quantified using hydroacoustic survey meth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::731c9a031dba05db007005fc9e6a108c
https://doi.org/10.1029/2019gl082750

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A joint electromagnetic and seismic study of an active pockmark within the hydrate stability field at the Vestnesa Ridge, West Svalbard margin

Autor: Bedanta Goswami, Karen Weitemeyer, Martin C. Sinha, Anne Chabert, Timothy A. Minshull, Timothy J. Henstock, Stephan Ker, Graham K. Westbrook

Publikováno v: Journal of Geophysical Research: Solid Earth. 120:6797-6822

We acquired coincident marine controlled source electromagnetic (CSEM), high-resolution seismic reflection and ocean-bottom seismometer (OBS) data over an active pockmark in the crest of the southern part of the Vestnesa Ridge, to estimate fluid comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0441b43ea8a62ab0d3d7d8a6fa47a47e
https://doi.org/10.1002/2015jb012344

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Record of methane emissions from the West Svalbard continental margin during the last 23.500yrs revealed by δ13C of benthic foraminifera

Autor: Angelo Camerlenghi, Chiara Consolaro, Giuliana Panieri, Cristina Sanchez Cervera, Isabel Cacho, Rachael H. James, Graham K. Westbrook, Valentina Cesari

Publikováno v: Global And Planetary Change (0921-8181) (Elsevier Science Bv), 2014-11, Vol. 122, P. 151-160
Global and planetary change
122 (2014): 151–160. doi:10.1016/j.gloplacha.2014.08.014
info:cnr-pdr/source/autori:Panieri, Giuliana; James, Rachael H.; Camerlenghi, Angelo; Westbrook, Graham K.; Consolaro, Chiara; Cacho, Isabel; Cesari, Valentina; Sanchez Cervera, Cristina/titolo:Record of methane emissions from the West Svalbard continental margin during the last 23.500 yrs revealed by delta C-13 of benthic foraminifera/doi:10.1016%2Fj.gloplacha.2014.08.014/rivista:Global and planetary change (Print)/anno:2014/pagina_da:151/pagina_a:160/intervallo_pagine:151–160/volume:122

The values of delta C-13 in benthic foraminifera have been measured in a gas-hydrate-bearing sediment core collected from an area of active methane venting on the Vestnesa Ridge (West Svalbard continental margin) to reconstruct the local history of m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffdb84e5755d0f99fd880fb460f564cd
https://doi.org/10.1016/j.gloplacha.2014.08.014

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Slip rate estimation along the western segment of the Main Marmara Fault over the last 405-490 ka by correlating mass transport deposits

Autor: Céline Grall, Günay Çifçi, H. Saritas, Yannick Thomas, Graham K. Westbrook, Bruno Marsset, Pierre Henry, Louis Géli, M.N. Çağatay

Publikováno v: Tectonics. 32:1587-1601

[1] High-resolution 3-D seismic data acquired in the Sea of Marmara on the Western High, along the northwestern branch of the North Anatolian Fault (also known as the Main Marmara Fault), shed new light on the evolution of the deformation over the la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f481dfb3f7e3543f6769302dfa1f511
https://doi.org/10.1002/2012tc003255

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Seismic-derived seabed topography: Insights from the outer fold and thrust belt in the deep-water Niger Delta

Autor: Timothy J. Reston, Graham K. Westbrook, Babangida Jibrin

Publikováno v: The Leading Edge. 32:420-423

Seafloor mapping of the outer fold and thrust belt in the deep-water Niger Delta using high-resolution 3D seismic data has revealed a variety of geomorphic features related to gravity-driven compressional tectonics, submarine sedimentary processes, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::55baf304fda958dafc9be03dba3b5ad9
https://doi.org/10.1190/tle32040420.1

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Application of volumetric seismic discontinuity attribute for fault detection: Case study using deep-water Niger Delta 3D seismic data

Autor: Babangida Jibrin, Graham K. Westbrook, Timothy J. Reston

Publikováno v: The Leading Edge. 32:424-428

Techniques for detecting faults have been applied to a 3D seismic volume acquired in the outer fold and thrust belt in the deep-water Niger Delta. Firstly, the dip and azimuth of seismic traces in the data were calculated in a volume referred to as t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::303d47a5e51c2be8e63c79bb8f2dfd86
https://doi.org/10.1190/tle32040424.1

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Methane release from warming-induced hydrate dissociation in the West Svalbard continental margin: Timing, rates, and geological controls

Autor: Kate E. Thatcher, Sudipta Sarkar, Graham K. Westbrook, Timothy A. Minshull

Publikováno v: Journal of Geophysical Research: Solid Earth. 118:22-38

[1] Hundreds of plumes of methane bubbles, first observed in 2008, emanate from an area of the seabed off West Svalbard that has become 1 � C warmer over the past 30 years. The distribution of the plumes, lying close to and upslope from the present

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6afb5c76497a6c5b10207bb6d14cf71
https://doi.org/10.1029/2012jb009605

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