نتایج جستجو برای: migmatite
تعداد نتایج: 114 فیلتر نتایج به سال:
Landsat 8 OLI data, Aeromagnetic and Radial Vertical Electrical Sounding (RVES) survey data were integrated to map lithology, delineate structures their trends, possible mineralized zones in the area. yielded a color composite image, surface lineaments of The aeromagnetic maps utilized subsurface structures. A radial confirmed fractures derived from structural maps. Results classified area into...
Late Neoproterozoic (548-579 million years ago) metamorphic - igneous Shotor Kuh complex is cropped out in SE Shahrood, consist of a various range of rocks including metabasite, metapelite, metagraywake, metapsammite and metacarbonate. Metapelites include phyllite to gnessis and migmatite. Metamorphism intensity in the highest degree, progressed to anatexy and formation of granitic melts. Ther...
Boroujerd-Nezam Abad zone widespread along NW-SE trend in part of Sanandaj-Sirjan zone. Borujerd-Nezam zone consists of hornfels, schist, phyllite, migmatite, granite and granodiorite rock types. Metamorphic (hornfels and schist) and igneous (granitoids) rocks are known as host pegmatitic dykes. Quartz, feldspar, muscovite and tourmaline are the most common pegmatite, and mica are as muscovite ...
• 1.80–1.75 Ga TIB-1 granite emplacement during late-Svecofennian orogeny. Sills injected into TTG gneisses leaving mafic pendant layers between sills. Melt pathways along foliation, thrusts, fold axial surfaces, and strike-slip faults. Back-arc extension in advancing accretionary orogenic model. The Ersfjord Granite is part of a suite c.1.80–1.75 syeno-granites the West Troms Basement Complex,...
In exhumed orogens, refractory mafic rocks have the potential to preserve a record of petrogenesis and high-pressure (HP) metamorphism that is commonly obliterated in quartzofeldspathic owing re-equilibration at high-temperature, low-pressure (LP–HT) conditions. Montagne Noire (France) migmatite dome, located foreland Variscan orogen, eclogite exposed both core margin dome. this study, we combi...
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