Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/52474
DC FieldValueLanguage
dc.contributor.authorKarátson, D.en_US
dc.contributor.authorYepes, J.en_US
dc.contributor.authorFavalli, M.en_US
dc.contributor.authorRodríguez-Peces, M.J.en_US
dc.contributor.authorFornaciai, A.en_US
dc.date.accessioned2018-11-27T10:55:40Z-
dc.date.available2018-11-27T10:55:40Z-
dc.date.issued2016en_US
dc.identifier.issn0169-555Xen_US
dc.identifier.urihttp://hdl.handle.net/10553/52474-
dc.description.abstractOriginal volcanic edifices of two successive stages of Gran Canaria are reconstructed using a geomorphometric analysis of existent or restored paleosurfaces. In the reconstruction, surface fitting was applied preferably to planèzes (i.e. triangular facets of original volcano flanks) and quasi-planar surfaces, QPS (those occurring on planèzes, or scattered, slightly eroded portions derived from original cone surfaces) with the help of red relief image map (RRIM) analysis. Out of the long-lasting, Mid-Miocene to Holocene subaerial evolution of the island, the Late Miocene Fataga volcano and the subsequent, Pliocene Roque Nublo volcanoes were the largest and highest. The eruptive center of Fataga, a composite edifice (12.2-8.8Ma) that may have grown up excentrically with respect to the previous Tejeda caldera, is well-defined by both two planèzes (named Veneguera-Mogán and Fataga-Tirajana) and QPS remnants. Its calculated original volume, ≤1000km3, is close to the largest stratovolcanoes on Earth. However, its ≥3300m elevation, obtained by exponential fit, may have been significantly lower due to the complex architecture of the summit region, e.g. a caldera responsible for ignimbrite eruptions. Roque Nublo, a 3.7-2.9Ma stratovolcanic cone, which was superimposed upon the Fataga rocks ≥3km west of the Fataga center, has left no considerable paleosurfaces behind due to heavy postvolcanic erosion. Yet, its remnant formations preserved in a radial pattern unambiguously define its center. Moreover, surface fitting of the outcropping rocks can be corrected taking the erosion rate for the past 3Ma into account. Such a corrected surface fit points to a regular-shaped, ≥3000m-high cone with a 25km radius and ca. 940km3 original volume, also comparable with the dimensions of the largest terrestrial stratovolcanoes.en_US
dc.languageengen_US
dc.relation.ispartofGeomorphologyen_US
dc.sourceGeomorphology [ISSN 0169-555X], v. 253, p. 123-134en_US
dc.subject2506 Geologíaen_US
dc.subject250621 Vulcanologíaen_US
dc.subject.otherFatagaen_US
dc.subject.otherGeomorphometryen_US
dc.subject.otherGran Canariaen_US
dc.subject.otherPlanèzeen_US
dc.subject.otherRoque Nubloen_US
dc.titleReconstructing eroded paleovolcanoes on Gran Canaria, Canary Islands, using advanced geomorphometryen_US
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.doi10.1016/j.geomorph.2015.10.004
dc.identifier.scopus84944707449
dc.identifier.isi000367114100011
dc.contributor.authorscopusid6602341669
dc.contributor.authorscopusid16314521900
dc.contributor.authorscopusid8340407400
dc.contributor.authorscopusid35325133200
dc.contributor.authorscopusid57213315344
dc.description.lastpage134-
dc.description.firstpage123-
dc.relation.volume253-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid1509808
dc.contributor.daisngid2313783
dc.contributor.daisngid645627
dc.contributor.daisngid2495625
dc.contributor.daisngid22007061
dc.contributor.wosstandardWOS:Karatson, D
dc.contributor.wosstandardWOS:Yepes, J
dc.contributor.wosstandardWOS:Favalli, M
dc.contributor.wosstandardWOS:Rodriguez-Peces, MJ
dc.contributor.wosstandardWOS:Fomaciai, A
dc.date.coverdateEnero 2016
dc.identifier.ulpgces
dc.description.sjr1,334
dc.description.jcr2,958
dc.description.sjrqQ1
dc.description.jcrqQ1
dc.description.scieSCIE
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.deptGIR IOCAG:Geología Aplicada y Regional-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Ingeniería Civil-
crisitem.author.orcid0000-0001-5039-1482-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameYepes Temiño, Jorge-
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