نتایج جستجو برای: sirjan zone
تعداد نتایج: 111210 فیلتر نتایج به سال:
The Chadegan metamorphic complex is a WNW-ESE- trending antiformal structure located in Sanandaj-Sirjan structural zone, Iran.The inner core of the structure is made of orthogneiss, containing eclogitic lenses. Schists and marbles lie structurally above theorthogneiss and crop out in the external limbs of the antiformal dome. Two main deformational episodes have been documented in theschists an...
The Marivan granitoid body of the northern Sanandaj–Sirjan Zone (N-SaSZ) northwest Iran was emplaced into Cretaceous sediments, and is associated with minor amounts iron skarn-type mineralization along contact between intrusion surrounding country rocks. granitoids within include (hornblende-rich) diorite, granodiorite, granite phases, zircon U–Pb dating four samples from this indicate they wer...
The dacitic domes lie in the Sanandaj-Sirjan Zone. They were subjected to deformation resulting from tectonic movements. They are as oriented rocks which show deformation textures such as plagioclase with mechanical twin, biotite fish, and deformed clinopyroxene set in foliated groundmass. Under condition of hydrothermal alteration, biotites altered into chlorite with smectite interlayers and p...
The studied area is a small portion of Sanandaj – Sirjan zone. Metasomatism at the contact of intrusive body studied and penetration of Al-rich rocks caused tourmalinization to stratiform tourmalinite in pelitic hornfels. In addition, hydrothermal fluids crystallized tourmaline nodules in monzogranite surface. The Fe/ (Fe + Mg) ratio in varied between 0.4-0.76 in stratiform tourmaline and 0.83-...
The genetic algorithm (GA) is an evolutionary optimization algorithm operating based upon reproduction, crossover and mutation. On the other hand, particle swarm optimization (PSO) is a swarm intelligence algorithm functioning by means of inertia weight, learning factors and the mutation probability based upon fuzzy rules. In this paper, particle swarm optimization in association with genetic a...
The major purposes of the presents study were (a) to examine the degree to which academic engagement mediates the relationship between parenting style and academic achievement. Data from 382 participants (191 males and 191 females) were examined using measures of parenting style, academic engagement, and self-reported grade point average. The results indicated that academic engagement mediate r...
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