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dc.contributor.authorArnulf, Adrien F.  Concept link
dc.contributor.authorHarding, Alistair J.  Concept link
dc.contributor.authorKent, Graham M.  Concept link
dc.contributor.authorCarbotte, Suzanne M.  Concept link
dc.contributor.authorCanales, J. Pablo  Concept link
dc.contributor.authorNedimovic, Mladen R.  Concept link
dc.date.accessioned2014-09-10T18:25:23Z
dc.date.available2015-06-09T09:10:44Z
dc.date.issued2014-05
dc.identifier.urihttps://hdl.handle.net/1912/6843
dc.descriptionAuthor Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here by permission of Geological Society of America for personal use, not for redistribution. The definitive version was published in Geology 42 (2014): 655-658, doi:10.1130/G35629.1.en_US
dc.description.abstractMost of the magma erupted at mid-ocean ridges is stored in a mid-crustal melt lens that lies at the boundary between sheeted dikes and gabbros. Nevertheless, images of the magma pathways linking this melt lens to the overlying eruption site have remained elusive. Here, we have used seismic methods to image the thickest magma reservoir observed beneath any spreading center to date, which is principally attributed to the juxtaposition of the Juan de Fuca Ridge with the Cobb hotspot. Our results reveal a complex melt body beneath the summit caldera, which is ~14 km long, 3 km wide and up to 1 km thick. The estimated volume of the reservoir is 18–30 km3, more than two orders of magnitude greater than the erupted magma volumes of the 1998 and 2011 eruptions. Our images show a network of sub-horizontal to shallow dipping (<30°) features that we interpret as pathways facilitating melt transport from the magma reservoir to the eruption sites.en_US
dc.description.sponsorshipThis research was funded through a National Science Foundation grant, OCE- 0002600, and additionally supported through the Cecil H. and Ida M. Green Foundation at the Scripps Institution of Oceanography.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.relation.urihttps://doi.org/10.1130/G35629.1
dc.titleAnatomy of an active submarine volcanoen_US
dc.typePreprinten_US
dc.description.embargo2015-06-09en_US


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