نتایج جستجو برای: nehbandan
تعداد نتایج: 60 فیلتر نتایج به سال:
In the past decades, cardiovascular diseases were the most common causes of death around the world and in Iran (1, 2). Various factors play an important role in the incidence of CVD; such as environmental, personal as well as lifestyle. We studied the geographical distribution of 19142 CVD deaths f r o m 2004 -2010 in South Khorasan. The mean age of the deceased was 59.3±28.9 years. 28.5% death...
the effect of soil and topographic features on distribution of amygdalus scoparia in nehbandan (iran) was investigated. slope, aspect and altitudinal maps were overlaid to prepare a working map unit. quantitative and qualitative traits, including height, number, collar diameter of sprout with the highest diameter, crown diameter and trunk health were recorded in 1000 m2 plots (27 plots). in eac...
Both the Sistan Suture Zone of eastern Iran and the Nehbandan Fault contain Plio-Quaternary Nehbandan mafic lavas. Positive anomalies in the large ion lithophile elements (LILE) and negative anomalies in Nb (niobium) exist in these mafic lavas. This indicates the occurrence of subduction magmatism and post-collision volcanism. Petrologic and geochemical analyses distinguished two groups of lava...
Extended abstract 1- Introduction Arid and semi-arid regions of the world cover more than 30% of the earthchr('39')s surface. Wind, as one of the erosive agents of the earthchr('39')s surface, causes the transport of sand and deformation in arid areas. Wind erosion is directly related to wind speed. The higher the wind speed is above the threshold value, the more increase in wind speed. This ...
افیولیت بیبی مریم بخشی از مجموعه افیولیتی نهبندان، به سن کرتاسه، در بخش شمالی پهنه گسلی نهبندان، شرق ایران، است. سنگ های مافیک این مجموعه شامل بازالت، دیاباز و گابرو هستند. نبود سنگهای دگرگونی رخساره شیستسبز، شیستآبی و آمفیبولیت، فقدان سنگهای کومهای پریدوتیتی با وجود فراوانی پریدوتیتهای گوشتهای، عدم مشاهده گابروی کومهای علیرغم فراوانی گابروی ایزوتروپ، نبود دسته دایکهای دیابازی به صور...
Plio-Quaternary volcanic eruptions in southeast of Nehbandan are composed of basic rocks, overlying the Late Cretaceous flysch-type and younger alluvium deposits. Petrographically, these rocks are basalt, basaltic andesite and andesite. These lavas are characterized by porphyritic, microlitic-porphyry, trachytic and glomeropophyritic textures. They contain plagioclase, clinopyroxene (augite), o...
The Zahri granitoid body has intruded into the Late Cretaceous ophiolitic rocks syn-tectonically. This granitoid with NW–SE general trend was emplaced along the terminations of Nehbandan shear system in the northern Sistan suture zone during the Early Eocene. Development of magmatic to low temperature solid-state fabrics have shown the progressive deformation with decreasing melt content during...
The prevalence of Theileria spp. infection was studied in sheep in the South Khorasan province in Iran from 2003 to 2004. A total of 840 sheep from 34 flocks were clinically examined and investigated for the presence of Theileria spp. in the appropriate blood smears and any tick species on the body of the animals. In this study, 11.9% of sheep were infected with Theileria spp., with a parasitem...
In this paper, faults, one of the most important causes geohazards, were investigated from a kinematic and geometric viewpoint in northern part Sistan suture zone (SSZ), which serves as boundary between Afghan Lut blocks. Furthermore, field evidence was analyzed order to assess structural type deformation mechanism research area. Birjand mountain range, several ~E–W striking faults cut through ...
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