Influence of volatiles (H$_{2}$O and CO$_{2}$) on shoshonite phase equilibria [PDF]
Comptes Rendus. Géoscience, 2023 Experiments were performed at 500 MPa, 1080 °C and water activities (aH$_{2}$O) from 0.0 to 1.0, in fluid-present and fluid-absent conditions, with the aim of constraining the effect of volatiles on phase equilibrium assemblages of a shoshonite from ...
Vetere, Francesco +8 more
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Tracing the human movements of three thousand years ago by volcanic grinding tools in the Final Bronze Age settlement of Monte Croce Guardia (Arcevia-Marche Region, central Italy) [PDF]
Scientific Reports, 2023 Volcanic rocks were among the most sought-after materials to produce grinding tools in antiquity because lavas lithologies, either mafic or felsic, ensured good wear resistance and grinding capacity with respect to many other kinds of rocks. The interest
P. Santi +6 more
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13C-depleted moissanites in subduction-related rocks: tracers of slab fluids in the Earth’s mantle and a new diamond exploration tool [PDF]
E3S Web of Conferences, 2019 A magnesian low-Ti shoshonite dike intruding Archean Norwegian Terrane includes numerous grains of black, blue and gray moissanite (SiC). Moissanite contains inclusions of native Si, Fe and Al, Fe-Cr carbides, Fe-Cr-Mn alloys and diamond.
Kepezhinskas Pavel, Kepezhinskas Nikita
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Petrography, Geochemistry, and Petrogenesis of Plutonic Rocks in Vineh Area, South of Central Alborz
Journal of Economic Geology, 2023 The intrusive body in the south of Vineh, located in the north of Karaj city, is one of the several late Eocene plutons that intruded into the volcano-sedimentary Karaj Formation in the south of Central Alborz.
Soudabeh Oruji +3 more
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Geosciences, 2023 The Paleozoic volcano-sedimentary rocks within the structural basement of the horst-and-graben system of the Catalan Coastal Ranges (CCR) are composed of black shale, volcaniclastic sediments, lava flows, sills and lithocrystalloclastic tuffs.
Pavel Kepezhinskas +5 more
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Geochemistry, petrogenesis and tectonic setting of volcanic rocks North Qazvin (Western Alborz) [PDF]
پترولوژی, 2019 The magmatic activities in north Qazvin, as a part of the Western Alborz zone, contain a sequences of volcanic lavas associated with pyroclastic rocks with Eocene age.
Iman Monsef +3 more
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Geochemistry and petrogenesis of Eocene shoshonitic and adakitic volcanic rocks in Sonajeel area (Southeast of Heris, Eastern Azerbaijan) [PDF]
پترولوژی, 2018 The studied area is located in the SE of Heris (Eastern Azerbaijan province) and the Alborz-Azerbaijan structural zone. The Eocene volcanic rocks in the area of under study show various compositions ranging from olivine basalt, hornblende basalt ...
Nasibeh Nemati +2 more
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Brazilian Journal of Geology, 2021 The São João do Sabugi Pluton (SJSP) (∼579 Ma) is one of the most expressive occurrences of Ediacaran, syn- to post-collisional shoshonitic rocks in the Rio Piranhas-Seridó Domain, Borborema Province, NE Brazil.
Dayvison Bruno Cordeiro de Paiva +3 more
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Geology, petrography and geochemistry of Eocene lavas from the north of Yusuf-Khan-Kandi, north of Lahrud, Ardabil Province [PDF]
علوم زمین خوارزمی, 2023 The study area is located in the north of the Yusef -Kandi village, north of Lahrud, Ardabil Province (northwestern Iran). This area comprises portions of the Alborz-Azarbaijan structural zone, which together with the Little Caucasus and the highlands of
Morteza Khalatbari Jafari +2 more
doaj
Breaking Up Is Hard to Do: Magmatism During Oceanic Arc Breakup, Subduction Reversal, and Cessation
Geochemistry, Geophysics, Geosystems, 2022 The formerly continuous Vitiaz Arc broke into its Vanuatu and Fijian portions during a reversal of subduction polarity in the Miocene. Basaltic volcanism in Fiji that accompanied the breakup ranged from shoshonitic to low‐K and boninitic with increasing ...
James Gill +5 more
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