Volcanism in compressional settings: is it possible? (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Volcanism in compressional settings: is it possible? (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Alternative label

• Tibaldi A. (2005)
  Volcanism in compressional settings: is it possible?
  in Geophysical research letters
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Tibaldi A. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 32 (literal)

Rivista

• Geophysical research letters (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• Viene qui descritta per la prima volta la possibilità che il magma riesca ad arrivare in superficie anche in ambiente tettonico compressivo. (literal)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• Volcanism in compressional settings: is it possible? (literal)

Abstract

• This study presents the first field evidence of emplacement of a huge stratovolcano within contractional tectonics, in spite of the widely accepted idea that volcanism can develop only in extensional or transcurrent tectonic settings. El Reventador volcano (Ecuador) started to grow 0.32 Ma BP and is still active. During pre-El Reventador times, its substratum has been affected by N-S- to NNE-striking reverse faults. During late Pleistocene-Holocene, some reverse faults with the same orientations were still active, locally with a component of right-lateral strike-slip motions. Seismicity shows widespread events with intensity up to 6.9 Mw and compression. Some of these faults cut the volcano creating differential uplift along N-S- to NNE-trending tectonic blocks. Hypocenter swarms and field data indicate east-vergent basal thrusting under the volcano and N-S-trending fault-propagation folds to the east. A model for magma migration in this setting is proposed, suggesting that similar cases of volcanism within a dominantly contractional tectonic regime may be more frequent than previously thought. (literal)

Prodotto di

• Geologia delle catene orogeniche alpidiche. Geofisica crostale e litosferica con elaborazione di modelli 2D e 3D nell'area italiana. Cartografia geologica di base e tematica. (TA.P04.015.001) (Modulo)
• Institute for the Dynamics of Environmental Processes (IDPA) (Istituto)

Autore CNR

• ALESSANDRO TIBALDI (Unità di personale esterno)

Incoming links:

Prodotto

• Institute for the Dynamics of Environmental Processes (IDPA) (Istituto)
• Geologia delle catene orogeniche alpidiche. Geofisica crostale e litosferica con elaborazione di modelli 2D e 3D nell'area italiana. Cartografia geologica di base e tematica. (TA.P04.015.001) (Modulo)

Autore CNR di

• ALESSANDRO TIBALDI (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Geophysical research letters (Rivista)