Results 81 to 90 of about 82,590 (220)
, 2015 An upgrade of the PRIMELT algorithm for calculating primary magma composition is given together with its implementation in PRIMELT3 MEGA.xlsm software.
C. Herzberg, P. Asimow
semanticscholar +1 more source
Rapid heterogeneous assembly of multiple magma reservoirs prior to Yellowstone supereruptions
Scientific Reports, 2015 Large-volume caldera-forming eruptions of silicic magmas are an important feature of continental volcanism. The timescales and mechanisms of assembly of the magma reservoirs that feed such eruptions as well as the durations and physical conditions of ...
J. Wotzlaw +4 more
semanticscholar +1 more source
The chlorine isotope fingerprint of the lunar magma ocean
Science Advances, 2015 The unusually heavy Cl of the Moon is related not to degassing of dry magmas but rather to the loss of Cl from the lunar magma ocean. The Moon contains chlorine that is isotopically unlike that of any other body yet studied in the Solar System, an ...
J. Boyce +7 more
semanticscholar +1 more source
Satellite Geodesy Unveils a Decade of Summit Subsidence at Ol Doinyo Lengai Volcano, Tanzania
Geophysical Research LettersThe processing of hundreds of Synthetic Aperture Radar (SAR) images acquired by two satellite systems: Sentinel‐1 and COSMO‐SkyMed reveals a decade of ground deformation for a ∼0.5 km diameter area around the summit crater of the only active carbonatitic
Christelle Wauthier, Cristy Ho
doaj +1 more source
Field evidence for the lateral emplacement of igneous dykes
Volcanica, 2018 Seismological and geodetic data from modern volcanic systems strongly suggest that magma is transported significant distance (tens of kilometres) in the subsurface away from central volcanic vents.
David Healy +5 more
doaj +1 more source
Solid-Liquid Phase Transition As a Mechanism of Volcano Eruption [PDF]
arXiv, 2012 This paper considers the formation of the magma volcano chamber and its eruption due to melting of the matter within the earth crust because of heating caused by plastic deformation occurring during tectonic movement. The expansion of matter in the magma chamber which takes place during its heating, leads to elastic stresses in the solid shell ...
arxiv
Magma oceans as a critical stage in the tectonic development of rocky planets [PDF]
, 2018 Magma oceans are a common result of the high degree of heating that occurs during planet formation. It is thought that almost all of the large rocky bodies in the Solar System went through at least one magma ocean phase. In this paper, we review some of the ways in which magma ocean models for the Earth, Moon, and Mars match present day observations of
arxiv +1 more source
Journal of Economic Geology, 2012 The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar +3 more
doaj +1 more source
, 2015 The size, frequency, and intensity of volcanic eruptions are strongly controlled by the volume and connectivity of magma within the crust. Several geophysical and geochemical studies have produced a comprehensive model of the magmatic system to depths ...
E. Kiser +8 more
semanticscholar +1 more source
About the Mechanism of Volcanic Eruptions [PDF]
arXiv, 2012 A new approach to the volcanic eruption theory is proposed. It is based on a simple physical mechanism of the imbalance in the system "magma-crust-fluid". This mechanism helps to explain from unified positions the different types of volcanic eruptions. A criterion of imbalance and magma eruption is derived.
arxiv