Results 61 to 70 of about 23,785 (261)
Indonesian Journal on Geoscience, 2015 DOI:10.17014/ijog.2.2.111-124Batur is one of the finest known calderas on Earth, and is the source of at least two major ignimbrite eruptions with a combined volume of some 84 km3 and 19 km3.
Igan S. Sutawidjaja +2 more
doaj +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract Mechanisms for metal core formation in rocky planetesimals and planetary embryos remain poorly constrained, in part due to complexities arising from immiscibility in core‐forming liquids at low pressures. To assess the pressure dependence of immiscibility and its role in protoplanetary differentiation, we performed experiments at 3 and 5 GPa ...
Geoffrey David Bromiley +2 more
wiley +1 more source
Magma evolution inside the 1631 Vesuvius magma chamber and eruption triggering
Open Geosciences, 2017 Vesuvius is a high-risk volcano and the 1631 Plinian eruption is a reference event for the next episode of explosive unrest. A complete stratigraphic and petrographic description of 1631 pyroclastics is given in this study.
Stoppa Francesco +5 more
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Geofluids, 2019 Deep-seated geothermal reservoirs beneath calderas have high potential as sources of renewable energy. In this study, we used an analysis of melt inclusions to estimate the amount of water input to the upper crust and quantify the properties of a deep ...
Fajar F. Amanda +4 more
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Boulder of orbicular rapakivi in Taivassalo, southwestern Finland [PDF]
Bulletin of the Geological Society of Finland, 1983 A boulder of an orbicular rapakivi was found in Taivassalo, close to the southern contact of the Vehmaa rapakivi area in southwestern Finland. Many features, e.g.
N. Edelman
doaj +1 more source
Feeding of a magma chamber by an ascending magma bubble
Geophysical Journal International, 2021 SUMMARY There is evidence that magma chambers are not fed by a continuous flow, but in the form of discrete magma batches. The possibility is considered that the chamber is fed by a magma bubble ascending through the region underneath, driven by buoyancy force.
openaire +1 more source
Deep magmatic processes of mafic layered intrusions in the Lala mining area, western Sichuan
Dizhi lixue xuebaoObjective Previous studies have shown that many layered intrusions are formed by multiple pulsations of magma. However, little research has been done on whether the magma involved in the pulsation process comes from a single magma chamber or multiple ...
SUN Junyi, LUO Zhaohua, CUI Jiawei
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Volcano remote sensing with ground-based spectroscopy [PDF]
, 2005 The chemical compositions and emission rates of volcanic gases carry important information about underground magmatic and hydrothermal conditions, with application in eruption forecasting.
Burton M.R +5 more
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Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Swarms are microearthquake clusters governed by aseismic deformation, fluid migration, and stress changes, but the underlying mechanisms for their recurrence remain elusive. In 2008, abundant swarms were observed on the westernmost Gofar transform fault.
Lintong Jiang, Shihuai Zhang, Xiaying Li
wiley +1 more source
Sulfur‐Bearing hcp Iron for Earth's Inner Core
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Earth's iron core is believed to contain light impurities which should have been included during core formation. In order to place constraints on core composition, here we report the effect of sulfur on density of hexagonal close‐packed (hcp) iron which was not previously examined, using laser‐heated diamond anvil cells with in situ ...
Emiko Sugimura‐Komabayashi +7 more
wiley +1 more source