HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Trace elements geochemistry and origin of volcanic units from the San Luis Potosí and Río Santa María volcanic fields, Mexico: the bearing of ICP-QMS data

Alfredo Aguillon Robles 1, * Margarito Tristán-González 1 Ruben-Alfonso Lopez-Doncel 1 Elena Garcia-Arreola Maria 1 Joselin de Lourdes Almaguer-Rodriguez 1 René Maury 2
* Corresponding author
1 Instituto de Geologia
2 LDO - Domaines Océaniques
Abstract : Two main volcanic fields separated by a volcanotectonic structure were emplaced in the southern part of San Luis Potosí state during the Cenozoic peak of continental extension in the SE portion of the Sierra Madre Occidental. The Eocene to Quaternary volcanic rocks associated to these structures range in composition either from subalkaline basalts to basanites or from basaltic andesite to rhyolites, and were emplaced during five magmatic events. New trace element analyses obtained by the ICP-QMS method show that the three oldest ones, ranging in age from middle Eocene to late Oligocene, emplaced potassic calc-alkaline intermediate to evolved lavas. These originated from subduction-related mafic magmas through open-system fractional cristallization coupled with assimilation and possibly melting of the continental crust. The two youngest volcanic phases (Miocene and Quaternary) emplaced intraplate subalkaline to alkaline basalt and basanites derived from variable melting degrees of enriched mantle.
keyword : volcanic fields volcanic units trace elements ICP-QMS San Luis Potosí Mexico.
Document type :
Journal articles
Complete list of metadata
https://hal-insu.archives-ouvertes.fr/insu-00712880
Contributor : Adminhal Univbrestbu Connect in order to contact the contributor
Submitted on : Thursday, June 28, 2012 - 2:40:52 PM
Last modification on : Monday, January 3, 2022 - 4:35:55 PM

Identifiers

  • HAL Id : insu-00712880, version 1

Collections

INSU | CNRS | UNIV-BREST | CMM | GEO-OCEAN

Citation

Alfredo Aguillon Robles, Margarito Tristán-González, Ruben-Alfonso Lopez-Doncel, Elena Garcia-Arreola Maria, Joselin de Lourdes Almaguer-Rodriguez, et al.. Trace elements geochemistry and origin of volcanic units from the San Luis Potosí and Río Santa María volcanic fields, Mexico: the bearing of ICP-QMS data. Geofísica Internacional, Universidad Nacional Autonoma de Mexico, 2012, 51 (3), pp.293-308. ⟨insu-00712880⟩

Export

BibTeX TEI DC DCterms EndNote Datacite

Share

Metrics

Record views

89