Results 1 to 10 of about 293,215 (210)
An observational and thermodynamic investigation of carbonate partial melting [PDF]
Earth and Planetary Science Letters, 2015 Abstract Melting experiments available in the literature show that carbonates and pelites melt at similar conditions in the crust. While partial melting of pelitic rocks is common and well-documented, reports of partial melting in carbonates are rare and ambiguous, mainly because of intensive recrystallization and the resulting lack of criteria for ...
David Floess +3 more
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Frontiers in Earth Science, 2022 To assess the effects of sediment addition on the partial melting of subducted oceanic crust and generation of arc silicic magma, a series of comparative partial melting experiments on a garnet plagioamphibolite and a 90 wt% garnet plagioamphibolite + 10
Chunjuan Zang +5 more
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The Role of Fluids in Melting the Continental Crust and Generating Granitoids: An Overview
Geosciences, 2022 Granite is a distinctive constituent part of the continental crust on Earth, the formation and evolution of which have long been hot research topics.
Jiahao Li, Xing Ding, Junfeng Liu
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Geogaceta, 2023 The Cadafresnas granites and granitoid breccias (Peña do Seo, W of León) are small post-tectonic stocks of Variscan age related to W-Sn mineralizations.
Pablo Caldevilla Domínguez +4 more
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Relationships between sanukitoids and crust-derived melts and their implications for the diversity of Neoarchaean granitoids: A case study from Surmansuo and nearby areas, Eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2014 We present new isotopic data (U-Pb and Sm-Nd) from the Neoarchean granitoids of the Lentua complex, which is a part of the Western Karelia subprovince of the Fennoscandian Shield.
P. Mikkola, E. Heilimo, H. Huhma
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Partial melting in an upwelling mantle column [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2008 Decompression melting of hot upwelling rock in the mantle creates a region of partial melt comprising a porous solid matrix through which magma rises buoyantly. Magma transport and the compensating matrix deformation are commonly described by two-phase compaction models, but melt production is less often incorporated. Melting is driven by the necessity
Andrew C. Fowler +2 more
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The study of mineral chemistry of the Harzburgite in the Noorabad-Harsin ophiolite complex: Evidence from the evolution of partial melting of mantle peridotite from the deep ocean to the subduction zone [PDF]
پترولوژی, 2020 The Noorabad-Harsin ophiolite complex as part of the Kermanshah ophiolite is located in the high Zagros zone. The ophiolitic complex from the lower part to upper part is composed of serpentinized peridotites, layered gabbro, isotropic gabbro ...
Samaneh Falah +4 more
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Geochemistry and petrogenesis of Ghezelhesar Quaternary alkali olivine basalt flows (NE Hamedan, Iran) [PDF]
پترولوژی, 2021 The Ghezelhesar alkali olivine basalt flows as dark horizontal flows with about 20 m thickness covered the Quaternary deposits, 2 km southwest of Ghezelhesar village, 60 km northeast of Hamedan and in the Sanandaj-Sirjan geological and tectonic zone. The
Fatemeh Salar Beyrami; +2 more
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Partial melting in the deepest mantle [PDF]
Geophysical Research Letters, 2002 We have compared the travel times of direct (P, S) and core‐reflected (PcP, ScS) phases recorded in southern Africa from earthquakes occurring in the Scotia Arc region. The low‐velocity region beneath the south Atlantic is explored by calculating ScS‐S and PcP‐P travel‐time residuals to determine the correlation and magnitude of Vs and Vp reductions in
Nathan A Simmons, Stephen P. Grand
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Geochemistry, Geophysics, Geosystems, 2021 Revealing the timescales of metamorphic and anatectic processes is central to our understanding of tectonic evolution of collisional orogens. High‐temperature migmatites and leucogranites are well exposed in the Himalayan orogenic core, making it an ...
Huixia Ding +3 more
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