نتایج جستجو برای: ophiolitic
تعداد نتایج: 353 فیلتر نتایج به سال:
Nosrat-Abad ophiolitic extrusive sequence, located in the Sistan Suture Zone, in south eastern Iran. The extrusive sequence, contains pillow lava, sheet flow and related volcanic-clastic breccias which have undergone low-grade metamorphism. This association shows calc alkaline to tholeiitic affinities. Interpretation of the geochemical data and behavior of the elements in different diagrams rev...
Kermanshah ophiolite is an extremely crushed ophiolitic complex in which a complete ophiolitic sequence is not observed. Gabbros, deloritc dikes and mostly serpentinized peridotites are among the most important constituents of these ophiolitic set. Pridotites existing in the study area are of metamorphosized types that have been severely affected by the hydrothermal solutions due to their extre...
The Tibetan Plateau holds clues to understanding the dynamics and mechanisms associated with continental growth. Part of the region is characterized by zones of ophiolitic mélange believed to represent the remnants of ancient oceanic crust and underlying upper mantle emplaced during oceanic closures. However, due to the remoteness of the region and the inhospitable terrain many areas have not r...
A microtectonic study was conducted in the Levac region of central Serbia. Here, tectonic contacts between Europe?derived units, including Serbo-Macedonian unit and Jurassic sedimentary cover European margin, Eastern Vardar Ophiolitic unit, are exposed at surface. The results indicate that contact zone underwent least two ductile contractional deformation phases. older contraction associated wi...
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