Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes
Dykes at the Vicuña Pampa Volcanic Complex, which are mostly basaltic (trachy)-andesite and (trachy)-andesite, are exposed at the base and along the walls of a large depression resulting from intense degradation. Dykes intruding stiff layers (lavas, plugs and necks) are thin, mostly dip >60° and...
Published in: | Terra Nova |
---|---|
Main Authors: | , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/11390/1107338 https://doi.org/10.1111/ter.12268 http://onlinelibrary.wiley.com/doi/10.1111/ter.12268/abstract |
id |
ftunivudineiris:oai:air.uniud.it:11390/1107338 |
---|---|
record_format |
openpolar |
spelling |
ftunivudineiris:oai:air.uniud.it:11390/1107338 2023-07-30T04:04:25+02:00 Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes Guzmán, Silvina Neri, Marco CARNIEL, Roberto Martí, Joan Grosse, Pablo Montero López, Carolina Geyer, Adelina Guzmán, Silvina Neri, Marco Carniel, Roberto Martí, Joan Grosse, Pablo Montero López, Carolina Geyer, Adelina 2017 STAMPA http://hdl.handle.net/11390/1107338 https://doi.org/10.1111/ter.12268 http://onlinelibrary.wiley.com/doi/10.1111/ter.12268/abstract eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000404855400003 volume:29 issue:4 firstpage:224 lastpage:232 numberofpages:9 journal:TERRA NOVA http://hdl.handle.net/11390/1107338 doi:10.1111/ter.12268 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85019768551 http://onlinelibrary.wiley.com/doi/10.1111/ter.12268/abstract dykes dyke textures volcanic massif Vicuña Pampa Central Andes EXPLOSIVE ERUPTION BASALTIC VOLCANOS SYSTEMS EMPLACEMENT FEEDER INJECTIONS MECHANICS TRANSPORT FRACTURE ICELAND info:eu-repo/semantics/article 2017 ftunivudineiris https://doi.org/10.1111/ter.12268 2023-07-18T20:14:29Z Dykes at the Vicuña Pampa Volcanic Complex, which are mostly basaltic (trachy)-andesite and (trachy)-andesite, are exposed at the base and along the walls of a large depression resulting from intense degradation. Dykes intruding stiff layers (lavas, plugs and necks) are thin, mostly dip >60° and have coherent textures, whereas dykes intruding more compliant materials (breccias and conglomerates) tend to be thicker, have lower dips and have coherent, brecciated or mixed textures (coherent and brecciated textural domains in a single or compound dyke). Single dykes with brecciated and mixed textures are only found intruding near-surface units. Dykes with mixed textures always have sharp contacts between domains. Dykes with sinuous domain contacts and enclaves of one domain inside the other are interpreted as resulting from dyke arrest, partial cooling and reinjection of new magma. Dykes with straight domain contacts are considered to be compound dykes, with a new dyke intruding along the margins of an older, solidified one. © 2017 John Wiley & Sons Ltd Article in Journal/Newspaper Iceland Università degli Studi di Udine: CINECA IRIS Pampa ENVELOPE(-57.216,-57.216,-63.883,-63.883) Terra Nova 29 4 224 232 |
institution |
Open Polar |
collection |
Università degli Studi di Udine: CINECA IRIS |
op_collection_id |
ftunivudineiris |
language |
English |
topic |
dykes dyke textures volcanic massif Vicuña Pampa Central Andes EXPLOSIVE ERUPTION BASALTIC VOLCANOS SYSTEMS EMPLACEMENT FEEDER INJECTIONS MECHANICS TRANSPORT FRACTURE ICELAND |
spellingShingle |
dykes dyke textures volcanic massif Vicuña Pampa Central Andes EXPLOSIVE ERUPTION BASALTIC VOLCANOS SYSTEMS EMPLACEMENT FEEDER INJECTIONS MECHANICS TRANSPORT FRACTURE ICELAND Guzmán, Silvina Neri, Marco CARNIEL, Roberto Martí, Joan Grosse, Pablo Montero López, Carolina Geyer, Adelina Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes |
topic_facet |
dykes dyke textures volcanic massif Vicuña Pampa Central Andes EXPLOSIVE ERUPTION BASALTIC VOLCANOS SYSTEMS EMPLACEMENT FEEDER INJECTIONS MECHANICS TRANSPORT FRACTURE ICELAND |
description |
Dykes at the Vicuña Pampa Volcanic Complex, which are mostly basaltic (trachy)-andesite and (trachy)-andesite, are exposed at the base and along the walls of a large depression resulting from intense degradation. Dykes intruding stiff layers (lavas, plugs and necks) are thin, mostly dip >60° and have coherent textures, whereas dykes intruding more compliant materials (breccias and conglomerates) tend to be thicker, have lower dips and have coherent, brecciated or mixed textures (coherent and brecciated textural domains in a single or compound dyke). Single dykes with brecciated and mixed textures are only found intruding near-surface units. Dykes with mixed textures always have sharp contacts between domains. Dykes with sinuous domain contacts and enclaves of one domain inside the other are interpreted as resulting from dyke arrest, partial cooling and reinjection of new magma. Dykes with straight domain contacts are considered to be compound dykes, with a new dyke intruding along the margins of an older, solidified one. © 2017 John Wiley & Sons Ltd |
author2 |
Guzmán, Silvina Neri, Marco Carniel, Roberto Martí, Joan Grosse, Pablo Montero López, Carolina Geyer, Adelina |
format |
Article in Journal/Newspaper |
author |
Guzmán, Silvina Neri, Marco CARNIEL, Roberto Martí, Joan Grosse, Pablo Montero López, Carolina Geyer, Adelina |
author_facet |
Guzmán, Silvina Neri, Marco CARNIEL, Roberto Martí, Joan Grosse, Pablo Montero López, Carolina Geyer, Adelina |
author_sort |
Guzmán, Silvina |
title |
Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes |
title_short |
Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes |
title_full |
Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes |
title_fullStr |
Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes |
title_full_unstemmed |
Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes |
title_sort |
remarkable variability of dyke features at the vicuña pampa volcanic complex, southern central andes |
publishDate |
2017 |
url |
http://hdl.handle.net/11390/1107338 https://doi.org/10.1111/ter.12268 http://onlinelibrary.wiley.com/doi/10.1111/ter.12268/abstract |
long_lat |
ENVELOPE(-57.216,-57.216,-63.883,-63.883) |
geographic |
Pampa |
geographic_facet |
Pampa |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000404855400003 volume:29 issue:4 firstpage:224 lastpage:232 numberofpages:9 journal:TERRA NOVA http://hdl.handle.net/11390/1107338 doi:10.1111/ter.12268 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85019768551 http://onlinelibrary.wiley.com/doi/10.1111/ter.12268/abstract |
op_doi |
https://doi.org/10.1111/ter.12268 |
container_title |
Terra Nova |
container_volume |
29 |
container_issue |
4 |
container_start_page |
224 |
op_container_end_page |
232 |
_version_ |
1772815857029742592 |