2006
DOI: 10.1007/s00445-006-0069-2
|View full text |Cite
|
Sign up to set email alerts
|

Conduit-vent structures and related proximal deposits in the Las Cañadas caldera, Tenerife, Canary Islands

Abstract: The Las Cañadas caldera wall and the outer slopes of the caldera provide three-dimensional exposures of numerous proximal-welded fallout deposits and have been mapped in detail. As a result, some parts of the Ucanca and Guajara Formations of the stratigraphy of Martí et al. (1994) have been divided into members that correspond to individual eruptions. Mapping has also revealed the occurrence of conduit-vent structures associated with proximal-welded fallout deposits. Conduit-vent structures consist of an upper… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
11
0

Year Published

2008
2008
2024
2024

Publication Types

Select...
6
1

Relationship

2
5

Authors

Journals

citations
Cited by 16 publications
(11 citation statements)
references
References 28 publications
0
11
0
Order By: Relevance
“…Welding is enhanced by an increase in the number of arrivals of hotter and less viscous juveniles that agglutinate upon landing during eruption. These processes are concomitant with a decrease of the explosive activity during eruption and a change in the eruptive style, which evolves to spatter-fed clastogenic lava (Martí and Ablay 1994;Soriano et al 2006). Eruption volume and dispersal area of the La Grieta Member estimated from the exposed rocks are 25×10 4 m 3 and 17×10 4 m 2 respectively, suggesting that the eruptive style may have evolved from Strombolian to Hawaiian.…”
Section: Interpretation Of Observed Structures and Texturesmentioning
confidence: 96%
See 1 more Smart Citation
“…Welding is enhanced by an increase in the number of arrivals of hotter and less viscous juveniles that agglutinate upon landing during eruption. These processes are concomitant with a decrease of the explosive activity during eruption and a change in the eruptive style, which evolves to spatter-fed clastogenic lava (Martí and Ablay 1994;Soriano et al 2006). Eruption volume and dispersal area of the La Grieta Member estimated from the exposed rocks are 25×10 4 m 3 and 17×10 4 m 2 respectively, suggesting that the eruptive style may have evolved from Strombolian to Hawaiian.…”
Section: Interpretation Of Observed Structures and Texturesmentioning
confidence: 96%
“…The La Grieta Member is a welded pumice fallout deposit of the Guajara Formation exposed in the eastern part of the caldera wall. It is phonolitic in composition and corresponds to a single eruption that occurred between 0.80 and 0.71 Ma (Soriano et al 2006). It is underlain by the Pasajirón Member (0.80±0.05 Ma) and overlain by the Valle Blanco Member, which are both welded pumice fallout deposits of phonolitic composition included in the Guajara Formation (Figs.…”
Section: Geological Settingmentioning
confidence: 98%
“…Most of the authors who have studied the Las Cañadas edifice agree on the existence of various volcanic cycles during the construction of this volcanic complex (Furster et al, 1968;Araña, 1971;Ancochea et al, 1990Ancochea et al, , 1999Ibarrola et al, 1993;Martí et al, 1994Martí et al, , 2010Bryan et al, 1998;Huertas et al, 2002;Martí and Gudmundsson, 2000;Zafrilla, 2001;Soriano et al, 2002Soriano et al, , 2006Brown et al, 2003;Edgar et al, 2007). The eruptive activity of the Las Cañadas edifice has been suggested to have begun after an interruption in the construction of the basaltic shield and following an important erosive period (about > 3.5 Ma) (Ancochea et al, 1990;Martí et al, 1994).…”
Section: The Las Cañadas Edificementioning
confidence: 99%
“…Koronovsky 1971;Ekren & Byers 1976;Reedman et al 1987;Wolff et al 1989;Kano et al 1997;Freundt et al 2000;Soriano et al 2006). If the fabric is dominantly due to flattening from dyke-wall closure (Bell & Emeleus 1988), we might expect a wall-concordant foliation, but a lineation that is irregular if present at all (cf.…”
Section: The Forkhill Brecciasmentioning
confidence: 99%