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Testing competing caldera models using U/Pb geochronology; intrusive history of the Questa Caldera, Latir volcanic field, New Mexico, USA

Tappa, Michael J (2009) Testing competing caldera models using U/Pb geochronology; intrusive history of the Questa Caldera, Latir volcanic field, New Mexico, USA.

AuthorsTappa, Michael J
Year2009
TitleTesting competing caldera models using U/Pb geochronology; intrusive history of the Questa Caldera, Latir volcanic field, New Mexico, USA
GeoRef2010-075164
Keywordsabsolute age, calderas, Cenozoic, chemical composition, crystal fractionation, eruptions, Holocene, igneous rocks, ignimbrite, intrusions, Latir volcanic field, New Mexico, numerical models, plutons, pyroclastics, Quaternary, Questa Caldera, Taos County New Mexico, trace elements, U/Pb, United States, volcanic features, volcanic rocks, volcanism, volcanoes

Abstract

A compelling new model for caldera evolution challenges the standard depiction of large-scale volcanism. Here, I test these competing models by establishing the temporal and chemical relationship between ignimbrite and potential cogenetic plutons related to the Questa caldera, Latir volcanic field, New Mexico.

7 samples from this reference

SampleRock nameMajorTraceIsotope
MZQ-9Granodiorite
MZQ-12Granite
MZQ-13Granite
MZQ-15Granite
MZQ-19Granodiorite
MZQ-33Granite
MZQ-40Granodiorite