Ash-flow sheets of early Miocene and early Pliocene age are present in the Castillo de Callalli, Arequipa Department, southern Perú

dc.creatorNoble, Donald C.
dc.creatorNavarro Colque, Pedro Alexis
dc.creatorQuispesivana Quispe, Luis Juan
dc.creatorPeters, Lisa
dc.creatorMckee, Edwin H.
dc.date.accessioned2022-02-28T14:50:25Z
dc.date.accessioned2022-10-27T15:40:32Z
dc.date.available2022-02-28T14:50:25Z
dc.date.available2022-10-27T15:40:32Z
dc.date.created2022-02-28T14:50:25Z
dc.date.issued2003-07
dc.identifierNoble, D.; Navarro, P.; Quispesivana, L.; Peters, L. & Mckee, E.(2003). Ash-flow sheets of early Miocene and early Pliocene age are present in the Castillo de Callalli, Arequipa Department, southern Perú. Boletín de la Sociedad Geológica del Perú, 95: 33-38.
dc.identifierhttps://hdl.handle.net/20.500.12544/3687
dc.identifierBoletín de la Sociedad Geológica del Perú
dc.identifierBoletín de la Sociedad Geológica del Perú, v.95, julio 2003, pp. 33-38.
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4908404
dc.description.abstractTwo ash-flow sheets of markedly different age and petrography are exposed in the Castillo de Callalli. The lower, phenocryst-rich ash-flow sheet of low-silica rhyolite has a K-Ar age of 20.7 -+ 0.6 Ma. The overlying ash-flow sheet is composed of sanidine-bearing high-silica rhyolite. An 40Ar/39Ar age of 4.72 +- 0.02 Ma and petrographic characteristics show that the unit is almost certainly the lower ash-flow sheet of the Cailloma Tuff, which in adjacent quadrangles has been mapped variously as Fm. Sencca, Fm. Garza, Fm. Yauri, and Ignimbrita Acopata.
dc.languagespa
dc.publisherSociedad Geológica del Perú
dc.publisherPE
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0/deed.es
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRepositorio Institucional INGEMMET
dc.sourceInstituto Geológico, Minero y Metalúrgico – INGEMMET
dc.subjectCeniza volcánica
dc.subjectDatación Ar-Ar
dc.subjectDatación K-Ar
dc.subjectToba volcánica
dc.titleAsh-flow sheets of early Miocene and early Pliocene age are present in the Castillo de Callalli, Arequipa Department, southern Perú
dc.typeArtículos de revistas


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