Results 61 to 70 of about 542 (136)
Progress in Earth and Planetary ScienceTo assess the permeability structure of the oceanic lithosphere, we analyzed the field-based vein distribution and geometry in the Wadi Haymiliyah area of the Oman ophiolite.
Genya Sakamoto +4 more
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Minerals from the Pohorje igneous massif
Geologija, 1995 The mineralogical composition of Pohorje igneous rocks was determined by means of optical microscopy and X-ray poviwder diffraction. Quartz, plagioclases and K-feldspars are the major minerals in the granodiorite and its porphyritic varieties ...
Nina Zupančič
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Руды и металлыThe Gurvunur apatite-magnetite deposit is located within the Ozerny ore cluster in Western Transbaikalia. A peculiarity of this object is the presence of rare-earth mineralization in the ores. The main REE concentrator minerals include monazite, allanite,
Izvekova A. D. +2 more
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Fe3+∕ΣFe variation in lawsonite and epidote in subducted oceanic crust [PDF]
European Journal of MineralogyThe hydrous Ca–Al silicates lawsonite and epidote group minerals (EGMs) are key phases in subduction-zone H2O and element cycling. In high-pressure–low-temperature metamorphic rocks, Fe in both minerals is typically assumed to be entirely Fe3+, which ...
D. L. Whitney +5 more
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Separation of geochemical anomalies of rare earth elements by concentration-area fractal model in Anomaly No. 5 of Saghand (Central Iran) [PDF]
مجله علوم و فنون هستهای, 2015 The studied area is situated in the Central Iran structural zone. Uranim, thorioum and REEs (Rare Earth Elements) mineralizations are hydrothermal type and metasomatic related to intrusive areas.
Masoumeh Khalajmasoumi +5 more
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Evolving Fluid Source During the Growth of a Trench‐Parallel Seismogenic Fault System
Geochemistry, Geophysics, GeosystemsFluid infiltration along seismically‐active faults and fluid‐rock interaction influence the mechanical behavior of faults. Nevertheless, how fluid infiltration and fluid‐rock interactions evolve at seismogenic depths with fault slip accumulation remain ...
Simone Masoch +7 more
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, 1880 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
Geochemistry and paleotectonomagmatic setting of metabasites protolith from Asalem metamorphic complex (northwest Rasht) [PDF]
پترولوژی, 2016 Asalem metamorphic complex consists mostly of metabasite, metapelite and serpentinite. Metabasites display metamorphic features of greenschist and blueschist facies.
Mohsen Nasrabady, mohammad saadat
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Записки Горного институтаMineralogical-geochemical (SIMS method) study of titanite and geochronological (ID-TIMS method) study of garnets from mineral mines of the Southern Urals has been carried out. The mineral associations containing titanite belong to four contrasting types:
Vladislav S. Stativko +4 more
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Yankuang ceshi, 2013 The Tuosibasitao Fe-Cu-Au mineral deposit mainly occurs in the contact zone between the diorite porphyrite and basaltic volcanic rock of Middle Devonian Beitashan Formation in the forms of massives, heterogeneous gobbets, veinlets, breccia and veinlet ...
LV Shu-jun +4 more
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