Results 41 to 50 of about 128,965 (257)

Morphostructure Control Towards the Development of Mahawu Volcanic Complex, North Sulawesi

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v7i1.134The studied area, situated in northeastern part of North Sulawesi Arm, is dominantly occupied by the Mahawu, Linau, Tompusu, and Kasurutan volcanic rocks.
S. Poedjoprajitno
doaj   +1 more source

Modeling Viscosity of Volcanic Melts With Artificial Neural Networks

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Viscosity is of great importance in governing the dynamics of volcanoes, including their eruptive style. The viscosity of a volcanic melt is dominated by temperature and chemical composition, both oxides and water content.
D. Langhammer   +2 more
doaj   +1 more source

Pre-eruptive CO2 budget of lower Cenozoic Neo-Tethyan magmas [PDF]

open access: gold, 2023
Léa Ostorero   +3 more
openalex   +1 more source

Time scales and temperatures of crystal storage in magma reservoirs: implications for magma reservoir dynamics

open access: yesPhilosophical Transactions of the Royal Society A, 2018
The thermal and therefore physical state of magma bodies within the crust controls the processes and time scales required to mobilize magmas before eruptions, which in turn are critical to hazard assessment.
K. Cooper
semanticscholar   +1 more source

¿La tierra crece? ¡Tal vez!

open access: yesRevista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2013
Los programas de Biología y Geología establecen la utilización de modelos físicos analógicos para promover el aprendizaje de fenómenos geológicos.
Paula Cristina de Almeida Maria Castelhano   +2 more
doaj  

Emplacement of magma pulses and growth of magma bodies [PDF]

open access: yesTectonophysics, 2011
Magmatism is responsible for the formation of continental and oceanic crusts. It is the main agent of mass and heat transfers from the mantle towards the crust, the hydrosphere (oceanic and continental hydrothermalism) and the atmosphere (emissions of volcanic gas and ashes).
Menand, Thierry   +2 more
openaire   +2 more sources

Boulder of orbicular rapakivi in Taivassalo, southwestern Finland [PDF]

open access: yesBulletin 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

open access: yesGeophysical 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

Magma chamber formation by magma intrusion into the Earth’s crust

open access: yesComputational Continuum Mechanics, 2018
<p>The main mechanism of transport of magma in the Earth’s crust is the formation of cracks, or dikes, through which the melt moves towards the surface under the action of buoyancy forces and tectonic stresses.
Ivan Utkin, Oleg Melnik
openaire   +2 more sources

Home - About - Disclaimer - Privacy