Show simple item record

dc.contributor.authorMakris, S
dc.contributor.authorRoverato, M
dc.contributor.authorLomoschitz, A
dc.contributor.authorCole, P
dc.contributor.authorManzella, I
dc.date.accessioned2023-02-27T09:06:55Z
dc.date.available2023-02-27T09:06:55Z
dc.date.issued2023-03
dc.identifier.issn0377-0273
dc.identifier.issn1872-6097
dc.identifier.other107773
dc.identifier.urihttp://hdl.handle.net/10026.1/20500
dc.description.abstract

The Tenteniguada volcanic debris avalanche deposit is located on the east of the island of Gran Canaria, Spain. Its internal structure is composed of a complex assemblage of extensional features and shearing structures including normal faults, horst and graben, brittle/ductile boudinage and clastic dike injections. Examination of these features in the field and evaluation of their distribution have allowed the generation of a new conceptual model for the transport and emplacement of this debris avalanche, and potentially others. In the majority of the deposit, the degree of disaggregation is low, with large portions of the original edifice preserved, although displaced by brittle deformation. Greater disaggregation is observed deeper and in the more distal section of the deposit. The findings suggest that the propagation of the volcanic debris avalanche was most likely facilitated by the normal fault-accommodated spreading and extension of the mass, with the majority of stress focused in fault zones. The greater disaggregation exhibited in the deeper and the more distal part of the deposit is likely to be due to greater stress accommodation from fault convergence and momentum transfer respectively. The abundance of competent lava lithologies and scarcity of weaker material that could be easily disaggregated is the most likely reason Tenteniguada did not fully evolve from a slide to a granular flow, and therefore generated a deposit which bears resemblance to non-volcanic blockslide deposits. Therefore, lithological properties are potentially a vital factor for the propagation mechanisms, distribution of stress and consequently the evolution of a debris avalanche from the initial collapse to its emplacement. The present study highlights the importance of dedicated field examinations of sedimentological, morphological, and structural features for providing constraints for models of debris avalanche propagation mechanisms and the factors dictating them.

dc.format.extent107773-107773
dc.languageen
dc.language.isoen
dc.publisherElsevier BV
dc.subjectVolcanic debris avalanche
dc.subjectPropagation processes
dc.subjectFacies
dc.subjectCanary Islands
dc.subjectSpreading
dc.subjectGran Canaria
dc.titleThe propagation and emplacement mechanisms of the Tenteniguada volcanic debris avalanche (Gran Canaria): Field evidence for brittle fault-accommodated spreading
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000947760500001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume435
plymouth.publisher-urlhttp://dx.doi.org/10.1016/j.jvolgeores.2023.107773
plymouth.publication-statusPublished
plymouth.journalJournal of Volcanology and Geothermal Research
dc.identifier.doi10.1016/j.jvolgeores.2023.107773
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2023-02-14
dc.rights.embargodate2023-2-28
dc.identifier.eissn1872-6097
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.jvolgeores.2023.107773
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record


All items in PEARL are protected by copyright law.
Author manuscripts deposited to comply with open access mandates are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author.
Theme by 
Atmire NV