Results 51 to 60 of about 373,743 (209)

Tectono-metamorphic evolution and timing of the melting processes in the Svecofennian Tonalite-Trondhjemite Migmatite Belt: An example from Luopioinen, Tampere area, southern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1999
The Svecofennian Orogen is in southern Finland characterized by two major migmatite belts. These are the so-called Granite Migmatite Belt, in which Kfs-rich leucosomes predominate, and the Tonalite-Trondhjemite Migmatite Belt, which is characterized by ...
H. Mouri, K. Korsman, H. Huhma
doaj   +1 more source

Primary crustal melt compositions: Insights into the controls, mechanisms and timing of generation from kinetics experiments and melt inclusions [PDF]

open access: yes, 2017
We explore the controls, mechanisms and timing of generation of primary melts and their compositions, and show that the novel studies of melt inclusions in migmatites can provide important insights into the processes of crustal anatexis of a particular ...
Acosta-Vigil, Antonio   +6 more
core   +1 more source

Temperature Distribution of Particles in a Laser Beam

open access: yesIranian Journal of Materials Science and Engineering, 2018
This article studies the particle temperature distribution depending on the laser radiation power and the particle’s trajectory and velocity. The uneven heating of particles moving in the laser radiation field is identified.
V. Lykhoshva   +4 more
doaj  

Evolution of the volcanic mechanism in the central part of the Urumieh-Dokhtar magmatic arc

open access: yesJournal of Economic Geology, 2021
Introduction Cenozoic volcanic activities in the Urumieh-Dokhtar Magmatic Arc (UDMA) have occurred in three main pulses of Eocene, upper Oligocene-Pliocene, and Pio-Quaternary (Dilek et al., 2010, Sayari, 2015).
Mohammad Sayari , Mortaza Sharifi
doaj   +1 more source

Capillary Condensation, Freezing, and Melting in Silica Nanopores: A Sorption Isotherm and Scanning Calorimetry Study on Nitrogen in Mesoporous SBA-15

open access: yes, 2012
Condensation, melting and freezing of nitrogen in a powder of mesoporous silica grains (SBA-15) has been studied by combined volumetric sorption isotherm and scanning calorimetry measurements.
F. Schüth   +4 more
core   +1 more source

Surface modification of an Al2O3/SiO2 based ceramic treated with CO2, Nd:YAG, excimer and high power diode lasers for altered wettability characteristics [PDF]

open access: yes, 1998
Interaction of CO2, Nd:YAG, excimer and high power diode laser (HPDL) radiation with the surface of an Al2O3/SiO2 based ceramic was found to affect significant changes in the wettability characteristics of the material.
Lawrence, Jonathan   +2 more
core   +1 more source

Low-Degree Partial Melting Experiments of CR and H Chondrite Compositions: Implications for Asteroidal Magmatism Recorded in GRA 06128 and GRA 06129 T [PDF]

open access: yes, 2010
Studies of differentiated meteorites have revealed a diversity of differentiation processes on their parental asteroids; these differentiation mechanisms range from whole-scale melting to partial melting without the core formation [e.g., 1].
Jones, John H.   +2 more
core   +1 more source

Study of Migmatization and Leucocrate granite formation processes in the Tuyserkan area, Hamedan

open access: yesJournal of Economic Geology, 2020
Introduction Partial melting is an appropriate correlation process between metamorphism and magmatism which plays a key role in the development of migmatites, granulites and S-type granites during crust evolution (Kriegsman, 2001; Alvarez-Valero and ...
Masoumeh Zare Shooli   +3 more
doaj   +1 more source

Is Gliese 581d habitable? Some constraints from radiative-convective climate modeling

open access: yes, 2010
The recently discovered exoplanet Gl581d is extremely close to the outer edge of its system's habitable zone, which has led to much speculation on its possible climate. We have performed a range of simulations to assess whether, given simple combinations
Baranov   +29 more
core   +3 more sources

Intracratonic Palaeoproterozoic granitoids in northern Finland: Prolonged and episodic crustal melting events revealed by Nd isotopes and U-Pb ages on zircon [PDF]

open access: yesBulletin of the Geological Society of Finland, 2007
Zircons from twelve Palaeoproterozoic granitoids from the Central Lapland Granitoid Complex (CLGC) and from the Hetta Complex (HC) in northern Finland were dated using the NORDSIM ion microprobe.
N. Ahtonen, P. Hölttä, H. Huhma
doaj   +1 more source

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