Eruptive scenarios of phonolitic volcanism at Teide-Pico Viejo volcanic complex (Tenerife, Canary Islands).
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| Title: | Eruptive scenarios of phonolitic volcanism at Teide-Pico Viejo volcanic complex (Tenerife, Canary Islands). |
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| Authors: | Martí, J.1 joan.marti@ija.csic.es, Sobradelo, R.1, Felpeto, A.2, García, O.3 |
| Source: | Bulletin of Volcanology. Apr2012, Vol. 74 Issue 3, p767-782. 16p. |
| Subject Terms: | *Volcanism, *Volcanic hazard analysis, *Volcanic eruptions |
| Geographic Terms: | Tenerife (Canary Islands), Canary Islands |
| Abstract: | Recent studies on Teide-Pico Viejo (TPV) complex have revealed that explosive activity of phonolitic and basaltic magmas, including plinian and subplinian eruptions, and the generation of a wide range of pyroclastic density currents (PDCs) have also been significant. We perform a statistical analysis of the time series of past eruptions and the spatial extent of their erupted products, including lava flows, fallout and PDCs. We use an extreme value theory statistical method to calculate eruption recurrence. The analysis of past activity and extent of some well-identified deposits is used to calculate the eruption recurrence probabilities of various sizes and for different time periods. With this information, we compute several significant scenarios using the GIS-based VORIS 2 software (Felpeto et al., J Volcanol Geotherm Res 166:106-116, ) in order to evaluate the potential extent of the main eruption hazards that could be expected from TPV. The simulated hazard scenarios show that the southern flank of Tenerife is protected by Las Cañadas caldera wall against lava flows and pyroclastic density currents, but not against ash fallout. The Icod Valley, and to a minor extent also the La Orotava valley, is directly exposed to most of TPV hazards, in particular to the gravity driven flows. This study represents a step forward in the evaluation of volcanic hazard at TPV with regard to previous studies, and the results obtained should be useful for intermediate and long-term land-use and emergency planning. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 73499254 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Eruptive scenarios of phonolitic volcanism at Teide-Pico Viejo volcanic complex (Tenerife, Canary Islands). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Martí%2C+J%2E%22">Martí, J.</searchLink><relatesTo>1</relatesTo><i> joan.marti@ija.csic.es</i><br /><searchLink fieldCode="AR" term="%22Sobradelo%2C+R%2E%22">Sobradelo, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Felpeto%2C+A%2E%22">Felpeto, A.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22García%2C+O%2E%22">García, O.</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Volcanology%22">Bulletin of Volcanology</searchLink>. Apr2012, Vol. 74 Issue 3, p767-782. 16p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Volcanism%22">Volcanism</searchLink><br />*<searchLink fieldCode="DE" term="%22Volcanic+hazard+analysis%22">Volcanic hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Volcanic+eruptions%22">Volcanic eruptions</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Tenerife+%28Canary+Islands%29%22">Tenerife (Canary Islands)</searchLink><br /><searchLink fieldCode="DE" term="%22Canary+Islands%22">Canary Islands</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Recent studies on Teide-Pico Viejo (TPV) complex have revealed that explosive activity of phonolitic and basaltic magmas, including plinian and subplinian eruptions, and the generation of a wide range of pyroclastic density currents (PDCs) have also been significant. We perform a statistical analysis of the time series of past eruptions and the spatial extent of their erupted products, including lava flows, fallout and PDCs. We use an extreme value theory statistical method to calculate eruption recurrence. The analysis of past activity and extent of some well-identified deposits is used to calculate the eruption recurrence probabilities of various sizes and for different time periods. With this information, we compute several significant scenarios using the GIS-based VORIS 2 software (Felpeto et al., J Volcanol Geotherm Res 166:106-116, ) in order to evaluate the potential extent of the main eruption hazards that could be expected from TPV. The simulated hazard scenarios show that the southern flank of Tenerife is protected by Las Cañadas caldera wall against lava flows and pyroclastic density currents, but not against ash fallout. The Icod Valley, and to a minor extent also the La Orotava valley, is directly exposed to most of TPV hazards, in particular to the gravity driven flows. This study represents a step forward in the evaluation of volcanic hazard at TPV with regard to previous studies, and the results obtained should be useful for intermediate and long-term land-use and emergency planning. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00445-011-0569-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 767 Subjects: – SubjectFull: Volcanism Type: general – SubjectFull: Volcanic hazard analysis Type: general – SubjectFull: Volcanic eruptions Type: general – SubjectFull: Tenerife (Canary Islands) Type: general – SubjectFull: Canary Islands Type: general Titles: – TitleFull: Eruptive scenarios of phonolitic volcanism at Teide-Pico Viejo volcanic complex (Tenerife, Canary Islands). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Martí, J. – PersonEntity: Name: NameFull: Sobradelo, R. – PersonEntity: Name: NameFull: Felpeto, A. – PersonEntity: Name: NameFull: García, O. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 02588900 Numbering: – Type: volume Value: 74 – Type: issue Value: 3 Titles: – TitleFull: Bulletin of Volcanology Type: main |
| ResultId | 1 |
