The development of karst features is a complex and interactive process many factors with varying influence over time. following main seem to have influenced the occurrence in Middle Atlas Morocco: Precipitations after extreme weather events depending on precipitation pattern modified by orographic effects exposition terrain towards rain-bearing clouds are determining surface water input infiltr...

the rijab area with189 square kilometers is located in northwest of zagros and north of sarpol zahab city. its main skeleton is made of hard and resistive layers of shahbazan dolomite and asmari lime, that its eastern part is pressed as an anticlinorium form but its western part as a syncline form. as a result of kerend fault practice most of the tectonically activities are seen in middle parts...

abstract: the aim of this study is analysis of drainage basins neotectonic in the north slope of bozqoosh mountains by geomorphological methods. to attain this aim, it used of field observation, areal photographs and five geomorphic indexes in 20 basins of the north slope of bozqoosh mountains. indexes were calculated by topography maps (1: 50000), geological maps (1: 100000) and areal photogr...