This paper presents structural evidence of extensional activity in Central Alborz during Mesozoic. The structural evidence of homogenous early stage stretching such as layer-parallel to oblique boudinage of Permian and Triassic rocks in various portions of the study area accompanied by extensional-fibrous fractures were followed with more advanced extensional features. These extensional structu...

feldspar grains, as a significant provenance indicator, of two terrigenous formations from central iran, the upper red formation, and moghan area, zivah formation, are used for provenance determination and the study of transportation and depositional history. the upper red formation (urf) is volumetrically the most important siliciclastic unit of the central iran and zivah formation (zf) repres...

Palynological and Palynofacies analysis combined with sedimentological studies have been performed on Dalichai Formation, northeast of Semnan, in order to define its paleoenviromental interpretation. Based on petrographic studies of organic matter, three palynofacies types were recognized as PF-1, PF-2, and PF-3. PF-1 is a characteristic of proximal shelf settings or basin. This palynofacies in...

today, the middle east is in the grip of religious violence, causing the death of thousands and displacement of millions of the people of this region. to find the roots of religious violence, which has practically paralyzed lives of millions, it is necessary to study it through an interdisciplinary approach. religious violence involves many individual and collective aspects; psychology, persona...

evaluation of range conditions and plant diversity circumstances can help to rangeland managers who establish their managerial approaches on the basis of ecological capabilities of rangeland ecosystems. hence, surveying of rangelands was done in four sites of northern alborz mt. including western alborz (masooleh site), west to middle alborz (javaherdeh site), central area (polour site), and ea...

background and aims: this study aimed to investigate the deaths and injuries following pedestrian traffic accidents and factors associated with death of pedestrian in tehran and alborz provinces. methods: in this cross-sectional study all traffic accidents related to pedestrians in tehran and alborz provinces reported from march 21, 2013 to march 21, 2014 by the traffic police were studied. the...