Results 51 to 60 of about 7,779 (214)
Rutile (TiO2) is a heavy mineral, commonly found as accessory in many lithologies, such as basic igneous rocks, high-grade metamorphic units, as well as a detritus in sedimentary clastic rocks.
Miguel Gerardo Adame-Martínez +3 more
doaj +1 more source
Metamorphic soles found under allochthonous oceanic lithosphere, or ophiolites, are interpreted as derived from lower plate oceanic crust material accreted to upper plate mantle during intraoceanic subduction initiation.
Carl Guilmette +8 more
doaj +1 more source
Concerning the discussion about the Bug series of the Middle Bug (Ukrainian shield)
The materials of several articles and reports published in 2022 by the authors of this work and V.P. Kirilyuk (Kirilyuk, 2022 a,b), who discussed the structure and stratigraphy of the Вug area granulite complex of the Ukrainian Shield.
O.B. Gintov +3 more
doaj +1 more source
ABSTRACT The Southern Brasília Orogen formed during Western Gondwana's final assembly and comprises nappe systems piled against the São Francisco Craton. We present new rutile U–Pb ages from the lowermost Canastra Group (> 2.2 Ga) and the uppermost Carrancas Group (~560 Ma), integrated with published zircon, monazite, garnet, and mica ages from the ...
Rodrigo Irineu Cerri +7 more
wiley +1 more source
Melt Reintegration Modelling: Testing against a Subsolidus Reference Assemblage
Phase equilibria modelling incorporating melt reintegration offers a methodology to create hypothetical rock compositions that may have existed prior to melt loss, allowing the potential prograde evolution of rocks to be explored.
Kiara L. Alessio +4 more
doaj +1 more source
Transformational Faulting: The Case of Quartz‐Coesite
Abstract Transformational faulting in olivine has been widely invoked as a possible triggering mechanism for deep‐focus earthquakes, yet its dynamics remain debated. It is unclear whether it requires the combined effects of heat release, volume change and mechanical strength contrast, or whether it can be triggered by any one of these alone.
Giulia Mingardi +8 more
wiley +1 more source
Decompressional equilibration of the Midsund granulite from Otrøy, Western Gneiss Region, Norway
The Western Gneiss Region (WGR) of the Scandinavian Caledonides is an archetypal terrain for high-pressure (HP) and ultrahigh-pressure (UHP) metamorphism. However, the vast majority of lithologies occurring there bear no, or only limited, evidence for HP
Holmberg Johanna +4 more
doaj +1 more source
A Geophysical Crustal Model of Central Italy for Geoneutrino Predictions in Borexino
Abstract Predicting the geoneutrino signal at underground detectors requires a local crustal reference whose precision matches the experimental uncertainty. The current Borexino reference is 15 years old and deterministic. We replace it with GUESS, a probabilistic 3‐D model of the Gran Sasso region, built by Bayesian inversion of multi‐source ...
L. Rossi +21 more
wiley +1 more source
Position of Saxonian granulite within the frame of European Variscides [PDF]
The Saxonian Granulite Massif (the type granulite locality) is situated in the northwestern part of Bohemian Massif. It is an antiform with dome structure, which came to the surface from below SaxoThuringian Paleozoic units.
Ramešová, Olga
core
Batı Anadolu'da yüzlek veren Menderes Masifi ana hatlarıyla Geç Alpin sıkışma tektoniği ile biçimlenmiş karmaşık bir tektonik iç yapı sunmaktadır. Bu kristalin kompleksin litostratigrafik istifi; 1-Pan-Afrikan temel (çekirdek serisi) ve 2-Paleozoyik ...
Osman CANDAN +7 more
doaj

