Results 91 to 100 of about 673,502 (223)
An investigation into the controls of granite plutonism in the Sierra da Freita region, Northern Portugal [PDF]
, 2012 The Serra da Freita region of north central Portugal was chosen for study as it displays the complex relationships between regional structure, plutonism, regional and contact metamorphism typical of this part of Iberia.
Reavy, Reginald John
core
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.Abstract Rock‐magnetic properties are widely used to resolve the composition, concentration, size, shape, and alignment of iron oxides in rock samples. Although anisotropy of magnetic susceptibility is measured routinely, acquisition of remanent magnetization as well as hysteresis loops are usually measured in one direction only.
Eduard Petrovský +5 more
wiley +1 more source
Mantle Flow and Anisotropy in Subduction Zones: Modeling and Clustering of Olivine Textures
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract The mantle near Earth's subduction zones endures intense deformation that generates anisotropic rock textures. These textures can be observed seismically and modeled geodynamically, but the complexity of this deformation makes analyses of these textures difficult.
Yijun Wang +3 more
wiley +1 more source
Influence of strain history on the mechanical and micro-fabric evolution of calcite rocks: insights from torsion experiments [PDF]
, 2018 Different types of deformation experiments were conducted on specimens of Carrara marble at a temperature of 1000 K, 300MPa confining pressure, and 3 × 10−4s−1 shear strain rate.
Burlini, Luigi, Delle Piane, Claudio
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract The relationship between the Proto‐Tethys and Paleo‐Tethys is still debated. Some researchers believe that the Paleo‐Tethys opened after the Proto‐Tethys closed, while others argue that they are the same ocean with two stages of subduction. We present field geology, geochemical, and geochronological data to support the latter interpretation ...
Rutao Zang +6 more
wiley +1 more source
Pegmatites of Southern California [PDF]
, 1954 For many years the southern California region has attracted the attention of geologists interested in pegmatites and pegmatite deposits, largely because of the well-known gem and lithium occurrences in San Diego and Riverside Counties. These world-famous
Jahns, Richard H.
core
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract Studies of exhumed subduction shear zones indicate that metamorphism and metasomatism of the oceanic lithosphere influence the composition, structure, and rheology of megathrust faults, particularly deep along the plate boundary (>30 km). However, less is known about the effects that fluid‐mediated chemical reactions have on the rheological ...
Benjamin D. Belzer +2 more
wiley +1 more source
Evaporation of aqueous salt solutions in sandstone during dissolution/crystallization cycles [PDF]
, 2014 COMInternational ...
Cnudde, Veerle +5 more
core +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract Deciphering Earth's earliest geodynamic processes requires temporally constrained chemical and structural data from rare exposures of ancient rocks. One of the most well‐studied of these exposures is the Acasta Gneiss Complex (AGC) in the Northwest Territories, Canada, which contains the oldest known felsic rocks on Earth.
Omar Khalil Droubi +6 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract The overriding plate commonly accumulates less strain than the subducted plate during continental collision. Analyzing plate interactions from the perspective of the overriding plate provides important insights into orogenic dynamics. In the southeastern Tibetan Plateau, the Wuliangshan massif, as a key region of the overriding plate, records ...
Qinying Wu +11 more
wiley +1 more source