dc.contributor.author | Arnulf, Adrien F. | | |
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dc.contributor.author | Harding, Alistair J. | | |
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dc.contributor.author | Kent, Graham M. | | |
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dc.contributor.author | Carbotte, Suzanne M. | | |
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dc.contributor.author | Canales, J. Pablo | | |
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dc.contributor.author | Nedimovic, Mladen R. | | |
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dc.date.accessioned | 2014-09-10T18:25:23Z | | | |
dc.date.available | 2015-06-09T09:10:44Z | | | |
dc.date.issued | 2014-05 | | | |
dc.identifier.uri | https://hdl.handle.net/1912/6843 | | | |
dc.description | Author 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.abstract | Most 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.sponsorship | This 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.mimetype | application/pdf | | | |
dc.language.iso | en_US | en_US | | |
dc.relation.uri | https://doi.org/10.1130/G35629.1 | | | |
dc.title | Anatomy of an active submarine volcano | en_US | | |
dc.type | Preprint | en_US | | |
dc.description.embargo | 2015-06-09 | en_US | | |