Results 21 to 30 of about 293,215 (210)
Nature Communications, 2017 Mantle partial melting produced the volcanic crust of Mercury. Here, the authors numerically model the formation of post-impact melt sheets and find that mantle convection was weak at around 3.7–3.8 Ga and that the melt sheets of Caloris and Rembrandt ...
Sebastiano Padovan +3 more
doaj +1 more source
Recrystallization and Melting of Partially Melted Stark Rubber [PDF]
Rubber Chemistry and Technology, 1967 Abstract Two specimens from a piece of stark rubber which had a melting temperature originally at 41° C were partially melted at 38° C and allowed to stand for 11 years, one at about 25° C, the other at 38° C. The first showed a continuous slow decrease in specific volume, while the second increased slowly in volume for 5 months and remained ...
openaire +3 more sources
Geologica Carpathica, 2014 The Eldivan Ophiolite, exposed around Ankara and Çankırı cities, is located at the central part of the Izmir-Ankara-Erzincan Suture Zone (IAESZ). It represents fragments of the Neotethyan Oceanic Lithosphere emplaced towards the south over the Gondwanian
Üner Tijen +3 more
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A Highly Depleted and Subduction‐Modified Mantle Beneath the Slow‐Spreading Mohns Ridge
Geochemistry, Geophysics, Geosystems, 2022 The Mohns Ridge is a very slow‐spreading ridge that, together with the Knipovich Ridge, marks the boundary between the North American and Eurasian plates in the Norwegian‐Greenland Sea.
A. Bjerga +4 more
doaj +1 more source
Evolution of the volcanic mechanism in the central part of the Urumieh-Dokhtar magmatic arc
Journal 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
The 1.79 Ga Särkilahti leucogranite – a horizontal magma layer below granulite-grade migmatites in SE Finland [PDF]
Bulletin of the Geological Society of Finland, 2019 The heterogeneous, peraluminous Särkilahti garnet-cordierite leucogranite occupies ~ 75 km2 area in Svecofennian granulite-grade terrain of SE Finland. Country rocks are metasedimentary garnet-cordierite-biotite migmatites with some orthopyroxenegarnet ...
Hannu Mäkitie +3 more
doaj +1 more source
Defect mediated melting and the breaking of quantum double symmetries [PDF]
, 2006 In this paper, we apply the method of breaking quantum double symmetries to some cases of defect mediated melting. The formalism allows for a systematic classification of possible defect condensates and the subsequent confinement and/or liberation of ...
C. J. M. Mathy +7 more
core +3 more sources
The age and origin of the Vaasa migmatite complex revisited [PDF]
Bulletin of the Geological Society of Finland, 2014 The origin of the Vaasa migmatite complex was studied by using whole-rock Sm-Nd and zircon Lu-Hf and U-Pb data in conjunction with whole-rock major and trace element geochemistry.
E. Suikkanen +3 more
doaj +1 more source
Frontiers in Earth Science, 2022 The Michoacán–Guanajuato volcanic field (MGVF) in the western Trans-Mexican Volcanic Belt is one of the largest and most diverse monogenetic volcanic fields in the world holding more than 1200 volcanic vents.
Darío Torres-Sánchez +3 more
doaj +1 more source
Boninite and Harzburgite from Leg 125 (Bonin-Mariana Forearc): A Case Study of Magma Genesis during the Initial Stages of Subduction [PDF]
, 1992 Holes drilled into the volcanic and ultrabasic basement of the Izu-Ogasawara and Mariana forearc terranes during Leg 125 provide data on some of the earliest lithosphere created after the start of Eocene subduction in the Western Pacific.
Arculus, Richard J. +6 more
core +1 more source