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dc.contributor.author | Andrés, Juvenal | es_ES |
dc.contributor.author | Marzán, Ignacio | es_ES |
dc.contributor.author | Ayarza, P. | es_ES |
dc.contributor.author | Martí, David | es_ES |
dc.contributor.author | Palomeras, Imma | es_ES |
dc.contributor.author | Torné, Montserrat | es_ES |
dc.contributor.author | Campbell, S. | es_ES |
dc.contributor.author | Carbonell, Ramón | es_ES |
dc.date.accessioned | 2018-05-03T11:03:03Z | - |
dc.date.available | 2018-05-03T11:03:03Z | - |
dc.date.issued | 2018-03 | - |
dc.identifier.citation | Journal of Geophysical Research-Solid Earth, 123(3): 2049-2068 (2018) | es_ES |
dc.identifier.issn | 2169-9356 | - |
dc.identifier.uri | http://hdl.handle.net/10261/164385 | - |
dc.description.abstract | In this work the thermal structure of the Iberian Peninsula is derived from magnetic data by calculating the bottom of the magnetization, assumed to be the Curie-point depth (CPD) isotherm, which accounts for the depth at which magnetite becomes paramagnetic (580 degrees C). Comparison of the CPD with crustal thickness maps along with a heat flow map derived from the CPD provides new insights on the lithospheric thermal regime. Within Iberia, the CPD isotherm has thickness in the range of 17 to 29 km. This isotherm is shallow (<18 km) offshore, where the lithosphere is thinner. In continental Iberia, the NW Variscan domain presents a magnetic response that is most probably linked to thickening and later extension processes during the late Variscan Orogeny, which resulted in widespread crustal melting and emplacement of granites (in the Central Iberian Arc). The signature of the CPD at the Gibraltar Arc reveals a geometry consistent with the slab roll-back geodynamic model that shaped the western Mediterranean. In offshore areas, a broad extension of magnetized upper mantle is found. Serpentinization of the upper mantle, probably triggered in an extensional context, is proposed to account for the magnetic signal. The Atlantic margin presents up to 8 km of serpentinites, which, according to the identification of exhumed mantle, correlates with a hyperextended margin. The Mediterranean also presents generalized serpentinization up to 6 km in the Algerian Basin. Furthermore, a heat flow map and a Moho temperature map derived from the CPD are presented. | es_ES |
dc.description.sponsorship | This work has been supported by the CGL2014-56548-P project funded by the Spanish Ministry of Science and Innovation, 2014 SGR 1595 by Generalitat de Catalunya, and by pro- jects 18KAVW, 463AC01, 18KBVW, and 463AC01 from the University of Salamanca. We acknowledge Getech Group Plc. for providing the magnetic data for the study. Magnetic data are available for purchase from Getech Group Plc (www.getech.com). The EMAG2 data set can be downloaded from http://geomag.org/models/ emag2.html. Massimiliano Melchore is acknowledged for fruitful discussion on the Alboran Domain. We thank Fabio Speranza for the review of an early ver- sion of the manuscript. J. A. is supported by FPI grant BES-2015-071683 from the Spanish Ministry of Science and Innovation. We thank Editor Michael Walter, the Associate Editor Mark J. Dekkers, and two anonymous reviewers for their comments that helped improve the quality of the paper. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Geophysical Union | es_ES |
dc.relation.isversionof | Publisher's version | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | Curie Point Depth | es_ES |
dc.subject | Iberia Geodynamics | es_ES |
dc.subject | Heat flow | es_ES |
dc.subject | Serpentinization | es_ES |
dc.title | Curie Point Depth of the Iberian Peninsula and Surrounding Margins. A Thermal and Tectonic Perspective of its Evolution | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1002/2017JB014994 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1002/2017JB014994 | es_ES |
dc.identifier.e-issn | 2169-9313 | - |
dc.embargo.terms | 2018-12-01 | es_ES |
dc.contributor.funder | Generalitat de Catalunya | es_ES |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | es_ES |
dc.contributor.funder | Universidad de Salamanca | es_ES |
dc.relation.csic | Sí | es_ES |
oprm.item.hasRevision | no ko 0 false | * |
dc.identifier.funder | http://dx.doi.org/10.13039/501100004837 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002809 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
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