Global ETD Search

Mafic volcanism in the Colorado Plateau/Basin-and-Range Transition Zone, Hurricane, Utah

Sanchez, Alexander

… is a small-volume (0.48 km{dollar}\sp3{dollar}) mafic volcanic field in the Colorado Plateau/Basin & Range Transition Zone located in the eastern part of the St. George basin in southwestern Utah. Strombolian-Hawaiian style eruptions produced thin (10 m) a'a lava flows and cinder (scoria) cones …

unlv Repository record for Mafic volcanism in the Colorado Plateau/Basin-and-Range Transition Zone, Hurricane, Utah (opens in a new tab)

The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile

Mashego, RamolokwaneDepartment of Geological Sciences2025

… interaction with the APMB towards its margins. Mafic volcanism in the APVC is rare and is concentrated along the western margin of the APMB. These mafic lavas are predominantly Quaternary in age with some Pliocene lavas. Mafic volcanism in the APVC, and more specifically mafic volcanism during …

cape-town Repository record for The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile (opens in a new tab)

Volcanic framework and geochemical evolution of the Archean Hope Bay Greenstone Belt, Nunavut, Canada

Shannon, Andrew J.University of British Columbia2008

… sequence of supracrustal rocks dominated by mafic volcanic rocks with lesser felsic volcanic and sedimentary rocks. Mapping of two transects in the southern section and two transects in the northern section have contributed to a robust stratigraphic framework the belt. Three recently …

ubc Repository record for Volcanic framework and geochemical evolution of the Archean Hope Bay Greenstone Belt, Nunavut, Canada (opens in a new tab)

The Middle Fork Plutonic Complex: a plutonic association of coeval peralkaline and metaluminous magmas in the north-central Alaska Range

Solie, Diana N.Virginia Polytechnic Institute and State University1988

… conditions; subsolidus oxidation, indicated by mafic mineralogy and cathodoluminescence, is due to magmatic process rather than introduction of external components. Eruptive stratigraphy, as predicted by intrusive history of MFPC, compares favorably with volcanic stratigraphies of peralkaline …

vt Repository record for The Middle Fork Plutonic Complex: a plutonic association of coeval peralkaline and metaluminous magmas in the north-central Alaska Range (opens in a new tab)

Mafic Explosive Volcanism at Llaima Volcano: 3D X-Ray Microtomography Reconstruction of Pyroclasts to Constrain Shallow Conduit Processes

Valdivia-Munoz, Pedro Antonio

boise Repository record for Mafic Explosive Volcanism at Llaima Volcano: 3D X-Ray Microtomography Reconstruction of Pyroclasts to Constrain Shallow Conduit Processes (opens in a new tab)

The Curacautín Eruption of Llaima Volcano, Chile

Marshall, Aaron Asdale

boise Repository record for The Curacautín Eruption of Llaima Volcano, Chile (opens in a new tab)

Uranium-series isotope constraints on magma generation and differentiation in the central Oregon Cascades

Mitchell, Euan

… intra-arc extension is highly focused, young mafic volcanism is particularly abundant, and eruption of true rhyolite is unusually common also. This dissertation seeks to address the generation and differentiation of young (< 20 ka) magmas in the central Oregon Cascades through application of …

unm Repository record for Uranium-series isotope constraints on magma generation and differentiation in the central Oregon Cascades (opens in a new tab)