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National Research Council of Science and Technology, NST
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funding vehicle for: Petrogenetic and tectonic implications of Oligocene−Miocene volcanic rocks from the Sierra de San Miguelito complex, central Mexico

Royal Society: NA160116
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funding vehicle for: Petrogenetic and tectonic implications of Oligocene−Miocene volcanic rocks from the Sierra de San Miguelito complex, central Mexico

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Consejo Nacional de Ciencia y Tecnología, CONACYT: 336677
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funding vehicle for: Petrogenetic and tectonic implications of Oligocene−Miocene volcanic rocks from the Sierra de San Miguelito complex, central Mexico

Journal of South American Earth Sciences
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publication venue for: Petrogenetic and tectonic implications of Oligocene−Miocene volcanic rocks from the Sierra de San Miguelito complex, central Mexico
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date: 2026-08-28T04:05:00
publisher: vivo
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label: RDF description of Petrogenetic and tectonic implications of Oligocene−Miocene volcanic rocks from the Sierra de San Miguelito complex, central Mexico - http://orbis.uaslp.mx/vivo/individual/scopus6131

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Petrogenetic and tectonic implications of Oligocene−Miocene volcanic rocks from the Sierra de San Miguelito complex, central Mexico
most specific type: Article
type: Document
has funding vehicle: Royal Society: NA160116
type: Entity
volume: 95
has publication venue: Journal of South American Earth Sciences
type: Continuant
origen: scopus
abstract: Paleogene−Neogene volcanic complexes are commonly found in the southern part of the Mesa Central province (MC), Mexico. The Sierra de San Miguelito Complex (SSMC) is located in the southeastern part of the MC and consists of two main phases of Oligocene and Miocene units as follows: (1) basaltic group of porphyritic texture of basalt/trachybasalt compositions; and (2) rhyolite-ignimbrite group of porphyritic texture of trachydacite/trachyte compositions. Chondrite-normalized rare-earth element patterns for the basaltic group display enrichment in light rare earth elements (LREE) and large ion lithophile elements (LILE), whereas the rhyolite-ignimbrite group shows enrichment in LREE and high field strength elements (HFSE). The Eu anomalies within the SSMC become progressively more negative from the basaltic group to the rhyolite-ignimbrite group (Eu/Eu* = 1.13 to 0.02) suggest upper crust (crustal contamination) participates during magma generation. Trace element modelling reveals that the basaltic group evolved through a mixing process between mafic and felsic end−members. In contrast, chondrite-normalized and multi-element models reveal that the rhyolite-ignimbrite group evolved by partial melting of the upper continental crust. New multi-dimensional discrimination diagrams along with the Nb–Ta anomalies reveal that the SSMC volcanic rocks were generated in an extensional environment. © 2019 Elsevier Ltd
doi: 10.1016/j.jsames.2019.102311
artnum: 102311
date time value: article date 6132
related by: authorship_39359
related by: authorship_39357
type: Thing
e iscopus: 2-s2.0-85070682080
has funding vehicle: National Research Council of Science and Technology, NST
type: Generically Dependent Continuant
has funding vehicle: Consejo Nacional de Ciencia y Tecnología, CONACYT: 336677
estado: published
freetext keyword: Geochemistry; Petrogenesis; San Luis Potosi; Tectonic setting; Volcanic rocks basalt; extensional tectonics; igneous geochemistry; ignimbrite; Miocene; Oligocene; petrogenesis; rhyolite; tectonic setting; trachyte; volcanic rock; volcanology; Mexico [North America]; San Luis Potosi; Sierra de San Miguelito
related by: authorship_39361
crisid: 6132
related by: authorship_39358
type: Article
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most specific type: Document
related by: authorship_39360