نتایج جستجو برای: chah
تعداد نتایج: 104 فیلتر نتایج به سال:
1. Introduction Among sedimentary systems that are rich and poor in terms of sediment load, a different organization of the sand dunes can be seen. Barchan dunes are one of the accumulative landforms of wind that are considered from poor sedimentary systems in desert environments. The dunes are the crescent shape, and have two horns at the end. Along the horns the prevailing wind direction...
one of the most intensive occurrences of magmatism in iran was in the middle jurassic period. among the granitoid intrusions in this period as discrete bodies or complexes can be pointed to aligoodarz, alvand, astaneh, boroujerd, malayer, and chah-dozdan in the sanandaj-sirjan zone; shir-kuh and ayrakan in the central iran zone; shah-kuh, sorkh-kuh and kalateh-ahani in the lut block. these gran...
water distribution method based on the type of water conduits can be divided into two groups, namely, open and closed systems, while on the basis of the energy of the water flow, the two groups are gravity flow and pressurized flow. open channel type conveyance and distribution is achieved by gravity and includes channels made by embankment construction, excavation, or construction of prefabric...
geochemical aspects of na-metasomatism in sargaz granitic intrusion (south of kerman province, iran)
the sargaz granitic intrusion has been emplaced in sargaz ophiolitic suite, south-east of sanandaj-sirjan metamorphic zone, south of kerman province. the central part of the intrusive body contains pinkish coarse-grained granite, but the fractured northern part, neighboring chah-mazraeh fault, has been subjected to pervasive na-metasomatism and related subsolidus reactions. in the northern alte...
Halalan Manganese ore deposit is located in Torud-Chah Shirin volcano-sedimentary band and the northern part of Central Iran structural-sedimentary zone. The outcropped rocks in the area include metamorphic complex with lithology composition of slate, phyllite, schist, marble, limestone, dolomite and slightly metamorphed sandstone with Early Jurassic age. Manganese mineralization has occurred i...
INTRODUCTION: The present article aimed to study field observations of the 2017 Sefid Sang earthquake, Razavi Khorasan Province, Iran, measuring 6 on the Richter scale with the approach of assessing the behaviors and performing a short analysis on the rescue and relief operations. METHODS: This qualitative study has followed the conceptual analysis approach to research. The sample population w...
Geochemical Aspects of Na-Metasomatism in Sargaz Granitic Intrusion (South of Kerman Province, Iran)
The Sargaz granitic intrusion has been emplaced in Sargaz ophiolitic suite, south-east of Sanandaj-Sirjan metamorphic zone, south of Kerman province. The central part of the intrusive body contains pinkish coarse-grained granite, but the fractured northern part, neighboring Chah-Mazraeh fault, has been subjected to pervasive Na-metasomatism and related subsolidus reactions. In the northern alte...
Rural management has always undergone various changes. Today, this pillar is the responsibility of the Dehyari Foundation. The purpose of forming this institution is to have a strong executive force in order to develop rural areas. Dehyari, as the executor of village programs and projects, has an important role in reducing urban and rural inequalities and improving the development of the villag...
Amis & Backgrounds: The expansion of international migration as well as the marriage of immigrants with the host community will cause special effects in geographical spaces and especially the quality of life of migrant areas. The purpose of this study is to analyze the effect of marriages of Afghanistanian citizens with Iranian women on socio-economic dimensions of their quality of life in rura...
Calculation of the specific charge and specific drilling before a blasting operation plays a significant role in the design of a blasting pattern and the reduction of the final extraction cost of minerals. In this work, the information from the Sungun, Miduk and Chah-Firouzeh copper mines in Iran was assessed, and it was found that there was a significant relationship between the specific charg...
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