Vitreous state in nature—Origin and properties
K Heide, G Heide - Geochemistry, 2011 - Elsevier
Vitreous materials are quite routinely found in natural settings. Most of them are
aluminosilicates, which often occur in large deposits. Considering the geological formations …
aluminosilicates, which often occur in large deposits. Considering the geological formations …
Cenozoic ash-fall deposits in the Andean foreland basins, Northwest Argentina (23°-26° S)-Key to reconstruct their chrono-stratigraphy and to identify links to the …
Outstanding Cenozoic ash-fall deposits have been recognized in Andean foreland basins in
NW Argentina. The purpose of this contribution is to review their stratigraphic, petrographic …
NW Argentina. The purpose of this contribution is to review their stratigraphic, petrographic …
Tube pumices as strain markers of the ductile–brittle transition during magma fragmentation
J Marti, C Soriano, DB Dingwell - Nature, 1999 - nature.com
Magma fragmentation—the process by which relatively slow-moving magma transforms into
a violent gas flow carrying fragments of magma—is the defining feature of explosive …
a violent gas flow carrying fragments of magma—is the defining feature of explosive …
Eruptive shearing of tube pumice: pure and simple
Understanding the physicochemical conditions extant and mechanisms operative during
explosive volcanism is essential for reliable forecasting and mitigation of volcanic events …
explosive volcanism is essential for reliable forecasting and mitigation of volcanic events …
Magmatic Mn-rich garnets in volcanic settings: Age and longevity of the magmatic plumbing system of the Miocene Ramadas volcanism (NW Argentina)
Abstract The Miocene “Corte Blanco Tuff” rhyolite deposit is the product of a large volume
and high intensity Plinian eruption from the solitary and monogenetic Ramadas Volcanic …
and high intensity Plinian eruption from the solitary and monogenetic Ramadas Volcanic …
Paleoenviromental evolution of the Cenozoic foreland basin to intermontane basins in the Eastern Cordillera, North-Western Argentina
The stratigraphic and sedimentological characteristics of the Cenozoic deposits are very
important aspects to investigate the tecto-sedimentary evolution of the Andean foreland …
important aspects to investigate the tecto-sedimentary evolution of the Andean foreland …
Origin of late Miocene peraluminous Mn-rich garnet-bearing rhyolitic ashes in the Andean Foreland (Northern Argentina)
Abstract The Ramadas Volcanic Center on the eastern margin of the central Andean Puna
plateau along the Olacapato-El Toro lineament in Argentina erupted a rare strongly …
plateau along the Olacapato-El Toro lineament in Argentina erupted a rare strongly …
Petrology of the Coyaguayma ignimbrite, northern Puna of Argentina: Origin and evolution of a peraluminous high-SiO2 rhyolite magma
PJ Caffe, RB Trumbull, W Siebel - Lithos, 2012 - Elsevier
The Coyaguayma ignimbrite is a strongly peraluminous (SP), sillimanite, garnet-bearing
silicic rhyolite which erupted in the northern Puna segment of the central Andean plateau in …
silicic rhyolite which erupted in the northern Puna segment of the central Andean plateau in …
Almandine garnet phenocrysts in a~ 1 Ga rhyolitic tuff from central India
We report on the newly discovered almandine garnet phenocrysts in rhyolitic ignimbrites
(Sukhda Tuff) in the Precambrian Churtela Shale Formation of the Chhattisgarh Supergroup …
(Sukhda Tuff) in the Precambrian Churtela Shale Formation of the Chhattisgarh Supergroup …
The origin of an unusual tuff ring of perlitic rhyolite pyroclasts: The last explosive phase of the Ramadas Volcanic Centre, Andean Puna, Salta, NW Argentina
MA Tait, RAF Cas, JG Viramonte - Journal of Volcanology and Geothermal …, 2009 - Elsevier
A thick sequence of bedded pyroclastic deposits, comprised largely of crystal poor, partially
flow-banded perlite fragments defines the remains of a tuff ring around the eastern margin of …
flow-banded perlite fragments defines the remains of a tuff ring around the eastern margin of …