Results 41 to 50 of about 142,365 (357)
The imprint of thermally induced devolatilization phenomena on radon signal. Implications for the geochemical survey in volcanic areas [PDF]
, 2017 Thermal gradients due to magma dynamics in active volcanic areas may affect the emanating power of the substrate and the background level of radon signal.
Galli, Gianfranco +4 more
core +1 more source
Nature, 1967 Tufflavas and Ignimbrites A Survey of Soviet Studies. Edited by Earl F. Cook. Translated from the Russian by Miriam Carty. Pp. xii + 212. (New York: American Elsevier Publishing Company, Inc.; London: Elsevier Publishing Company, Ltd., 1966.) 60s.
openaire +1 more source
Ages of the Pliocene-Pleistocene Alexandra and Ngatutura Volcanics, western North Island, New Zealand, and some geological implications [PDF]
, 1989 The Alexandra and Ngatutura Volcanics are the two southernmost of the Pliocene-Quaternary volcanic fields of western and northern North Island, New Zealand, northwest of Taupo Volcanic Zone TVZ.
Briggs, Roger M. +3 more
core +2 more sources
Machine Learning in Discriminating Active Volcanoes of the Hellenic Volcanic Arc
Applied Sciences, 2021 Identifying the provenance of volcanic rocks can be essential for improving geological maps in the field of geology and providing a tool for the geochemical fingerprinting of ancient artifacts like millstones and anchors in the field of geoarchaeology ...
Athanasios G. Ouzounis +1 more
doaj +1 more source
Report of Investigations No. 135 Oligocene Volcanism and Multiple Caldera Formation in the Chinati Mountains, Presidio County, Texas [PDF]
, 1983 UT ...
Cepeda, Joseph C., Henry, Christopher D.
core +1 more source
Geosciences, 2022 Arsenic is a naturally occurring trace element that causes many health effects when present in drinking water. Elevated arsenic concentrations in water are often attributed to nearby felsic volcanic sequences; however, the specific rock units to which ...
Minghua Ren +2 more
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Evaluation of Support Types of Volcanic Clastic Sand and Gravels Based on Electrical Imaging Logging
Cejing jishu, 2023 The combined effect of river transport and volcanic action during the deposition of volcanic clastic sand conglomerate causes large variations in rock grain size and complex pore structure of different grain size combinations, which affects the reservoir
ZHAO Xiaoqing +4 more
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MATEC Web of Conferences, 2018 The research area is a part of South Serayu Mountain zone, specifically Bregada Kulon Progo. The Bregada Kulon Progo is a product of volcanic activity in the past, which can be seen by the volcanic rock called Old Andesite Formation.
Winarno Tri +3 more
doaj +1 more source
The evolution of pore connectivity in volcanic rocks
Earth and Planetary Science Letters, 2017 Pore connectivity is a measure of the fraction of pore space (vesicles, voids or cracks) in a material that is interconnected on the system length scale. Pore connectivity is fundamentally related to permeability, which has been shown to control magma outgassing and the explosive potential of magma during ascent in the shallowest part of the crust ...
Colombier, Mahieu +6 more
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Chemie Ingenieur Technik, EarlyView., 2023 Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source