ESR dating of quartz phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico

S Toyoda, F Goff, S Ikeda, M Ikeya - Journal of Volcanology and …, 1995 - Elsevier
The electron spin resonance (ESR) dating method was employed on quartz phenocrysts
separated from pumice of the El Cajete and Battleship Rock Members of the Valles Rhyolite …

Why deep-water eruptions are so different from subaerial eruptions

RAF Cas, JM Simmons - Frontiers in Earth Science, 2018 - frontiersin.org
Magmas erupted in deep-water environments (> 500 m) are subject to physical constraints
very different to those for subaerial eruptions, including hydrostatic pressure, bulk modulus …

[图书][B] Volcanic textures: a guide to the interpretation of textures in volcanic rocks

J McPhie - 1993 - elibrary.pvu.vn
PVU Library: Log In PVU Library PETROVIETNAM UNIVERSITY LIBRARY AND
INFORMATION CENTER PVU Library Search PVU Library By name, author, subject …

A reappraisal of ignimbrite emplacement: progressive aggradation and changes from particulate to non-particulate flow during emplacement of high-grade ignimbrite

MJ Branney, P Kokelaar - Bulletin of Volcanology, 1992 - Springer
We propose a mechanism by which massive ignimbrite and layered ignimbrite sequences—
the latter liable to have been previously interpreted as multiple flow units-form by …

The structure of basaltic scoria and reticulite and inferences for vesiculation, foam formation, and fragmentation in lava fountains

MT Mangan, KV Cashman - Journal of Volcanology and Geothermal …, 1996 - Elsevier
In this investigation pyroclast structures are used to constrain degassing in basaltic lava
fountains. Vesicle size, shape, number density, interconnectedness and packing character …

Morphology, eruption rates, and rheology of lava domes: Insights from laboratory models

JH Fink, RW Griffiths - Journal of Geophysical Research: Solid …, 1998 - Wiley Online Library
The growth of lava domes can be either quiescent or violent, with transitions between styles
of behavior commonly occurring with little warning. Here we propose that the behavior …

Crystallization of microlites during magma ascent: the fluid mechanics of 1980–1986 eruptions at Mount St Helens

CH Geschwind, MJ Rutherford - Bulletin of Volcanology, 1995 - Springer
Abstract Eruptions of Mount St Helens (Washington, USA) decreased in intensity and
explosivity after the main May 18, 1980 eruption. As the post-May 18 eruptions progressed …

Magmatic versus phreatomagmatic fragmentation: absence of evidence is not evidence of absence

JDL White, GA Valentine - Geosphere, 2016 - pubs.geoscienceworld.org
Fragmentation processes in eruptions are commonly contrasted as phreatomagmatic or
magmatic; the latter requires only fragmentation of magma without external intervention, but …

Submarine volcanic processes, deposits, and environments favorable for the location of volcanic-associated massive sulfide deposits

HL Gibson, RL Morton, GJ Hudak - 1997 - pubs.geoscienceworld.org
Volcanic-associated massive sulfide deposits (VMS deposits) have been studied in more
detail than their volcanic host rocks. Over the last 10 years, however, there has been a …

Exceptional mobility of an advancing rhyolitic obsidian flow at Cordón Caulle volcano in Chile

H Tuffen, MR James, JM Castro, CI Schipper - Nature communications, 2013 - nature.com
The emplacement mechanisms of rhyolitic lava flows are enigmatic and, despite high lava
viscosities and low inferred effusion rates, can result in remarkably, laterally extensive (> 30 …