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...

tehran is located in a valley at the foot of the alborz mountains in northern iran (35 degrees latitude north). urban expansion in tehran resulted from a high rate of population growth and rural-urban migration combined with a strong tradition of centralization in the capital. airborne particulate of tehran's atmosphere was fractionated in a 6-stage high-volume cascade impactor. the first ...

hyrcanian forests in northern slope of alborz support high bird richness and abundance same as central of europe. in this study, efficiency of different methods including fixed-width transect, variable-width transect, fixed-radius point count and variable circular plot samplings were compared in order to present the most reliable methods for surveying and monitoring of diurnal forest birds in f...

the archaeological mound of sofalin south of the alborz mountains of northern iran (eastern rey plain) sheds considerablelight on at least four problems connected with the emergence of complex societies in this part of iran. the first, it helpsfill a chronological gap in an important archaeological sequence by revealing a previously unidentified late fourth andthird millennium b.c. sequence of ...

the fauna of the subfamily diplazontinae (hymenoptera: ichneumonidae) in the north central parts of iran was studied during 2010-2011. a total of 933 specimens were collected in 30 localities at different altitudes using malaise traps. sixteen species belonging to 7 genera were identified of which twelve species indicated by asterisk, are new records for iran: diplazon annulatus (gravenhorst)*,...

as pioneer trends in iranian computational dialectology, the leveneshtain algorithm applied to mazandarani dialect data - extracted from lai – revealed regional dialect in the northern range of the alborz mountains. current synchronic fieldwork aimed to determine vowels responsible for regional variation, and likewise reliability and validity of the research findings, through vowel frequency me...

For the first time in more than 100 years, a new western Palaearctic species of Heloridae is described. Specimens of Helorus alborzicus Izadizadeh, van Achterberg & Talebi sp. nov. and Helorus ruficornis Förster were collected from the Alborz province of Iran. An illustrated identification key for Western Palaearctic Heloridae is provided.

In an earlier paper^ I described the new genus Brooksma from a series of sediments in southeastern Alaska tentatively referred to the upper Silurian. In that paper will be found a brief discussion of the faunal affinities of the series. A more detailed study of the Brooksina fauna together with the famias of lower and liighei horizons strengthens the belief that the formations in question shoul...

Ecotourism, unlike mass tourism, is a sustainable alternative tourism that can protect natural and cultural landscape values historical sources of sensitive landscapes ensures its ecological integrity. which takes into account the balance conservation use, supports use resources. In this context, raising awareness visitors local people may lead to decrease in urban pressure, visitor impact envi...