Results 41 to 50 of about 14,200 (125)
Geodynamics and Rate of Volcanism on Massive Earth-like Planets [PDF]
Astrophys.J.700:1732-1749,2009, 2008 We provide estimates of volcanism versus time for planets with Earth-like composition and masses from 0.25 to 25 times Earth, as a step toward predicting atmospheric mass on extrasolar rocky planets. Volcanism requires melting of the silicate mantle. We use a thermal evolution model, calibrated against Earth, in combination with standard melting models,
arxiv +1 more source
Distribution and chemical composition of halotrichite in geothermal fields of Kamchatka
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023 Halotrichite has been identified in geothermal fields of the Kambalny-Pauzhetka-Koshelev region, the Bolshoi Semiachik complex, and the Mutnovsky volcano (Kamchatka, Russia).
R.M. Sheveleva +4 more
doaj +1 more source
Nature monument "Borački krš": A geoheritage site in Serbia [PDF]
Zaštita prirodeBorački krš is a nature monument of geological and geomorphological character. The eruptive complex of Borač represents one of the most interesting and once extremely active Tertiary volcanic areas in Serbia, which has in terms of volcanic activities ...
Timotić Mirjana, Belij Srđan
doaj +1 more source
Electrical charging of ash in Icelandic volcanic plumes [PDF]
arXiv, 2014 The existence of volcanic lightning and alteration of the atmospheric potential gradient in the vicinity of near-vent volcanic plumes provides strong evidence for the charging of volcanic ash. More subtle electrical effects are also visible in balloon soundings of distal volcanic plumes.
arxiv
Volcanic forcing improves Atmosphere-Ocean Coupled General Circulation Model scaling performance [PDF]
, 2004 Recent Atmosphere-Ocean Coupled General Circulation Model (AOGCM) simulations of the twentieth century climate, which account for anthropogenic and natural forcings, make it possible to study the origin of long-term temperature correlations found in the observed records.
arxiv +1 more source
A 3-Dimension Model of Volcanism Volatiles Contribution on Atmospheric Chemical Abundance of Habitable Planets [PDF]
arXiv, 2022 The volcanism plays an important part in mass exchange circle to bring matter from core of planet to atmosphere. Thus, it is a possible method to research the change of elements abundance in atmosphere by modeling the process of volatiles from volcanism get through and mix in atmosphere, which is the focused point of this article.
arxiv
Detecting Volcanism on Extrasolar Planets [PDF]
, 2010 The search for extrasolar rocky planets has already found the first transiting rocky super-Earth, Corot 7b, with a surface temperature that allows for magma oceans. Here we ask if we could distinguish rocky planets with recent major volcanism by remote observation.
arxiv +1 more source
Геодинамика и тектонофизика, 2017 A comprehensive model for deep dynamics in Asia has been developed from the data on the evolution of melting anomalies in the context of lithospheric plate motions, interactions, orogeny, and rifting.
I. S. Chuvashova +2 more
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Cessation of Volcanism on Earth-Possibilities in near geological future [PDF]
arXiv, 2018 The number of active volcanoes and its latitudinal extent is likely to be related to the magnitude of internal heat in rocky planets. A critical value of internal heat may require in these planets to sustain volcanic activity and the decline of volcanic activity since their formation of these planets is inferred to be governed by radioactive decay laws.
arxiv
Khanneshin - the Afghan carbonatite volcano, discovered in the office
Известия высших учебных заведений: Геология и разведка, 2017 The pétrographie and mineralogical laboratory study of the rock samples and the analysis of the geological setting in the sites of their collection (South Afghanistan) allowed suggesting the presence of the carbonatite volcano there.
B. Ya. Vikhter
doaj +1 more source