Chaldoran area in NW of Iran has Mesozoic oceanic crust basement. The studied rocks of this region can be divided into three groups: ophiolitic gabbros and pillow lavas, ophiolitic volcanoclastics and Eocene lava flows. Ophiolitic mafic rocks show continental volcanic arc natures and Eocene lava flow shows OIB-like nature. During the Mesozoic,the Chaldoran region was situated in the active cont...

In order to study the impact of drought stress and planting date on safflower yield and yield components, an experiment was performed in Tabriz region in 2011. The experiment was carried out as split-split plot based on randomized complete block design. The main factor which was applied as split plot includes drought stress  with three levels:  (S1) 80 ± 3 mm evaporation from basin level of cla...

this study was based on the hypothesis that “ecotourism is an important instrument in sustainable rural development and ecologically-based landscape planning approaches which take the objectives of socio-economic development and nature conservation have an effective role in this issue”. for this purpose, the necessity of ecologically-based landscape planning approaches in the planning and imple...

The termination of mining activities often results in post-mining problems and risks. One these issues is the flooding mines. Long-term Ostrava Petrvald sub-basins Upper Silesian Coal Basin finished 1994. Tens coal seams were mined here, depth reached more than 1000 m below surface. Flooding sub-basin started flooded from one half only to prevent water into Karvina sub-basin, where continued. c...

Abstract The Yola Sub-basin represents the lower portion of bifurcated Upper Benue Trough, whose origin has been linked to opening Atlantic Ocean in Mesozoic. sub-basin fill consists predominantly siliciclastic and carbonate deposits, ages which have remained controversial until now. This work employs field observations integrated with palynostratigraphy refine stratigraphy these Cretaceous dep...

The lunar semidiurnal influence is already known for tidal rivers. The moon also influences inland rivers at a monthly scale through precipitation. We show that, for some non-tidal rivers, with special geological conditions, the lunar semidiurnal tidal oscillation can be detected. The moon has semidiurnal tidal influence on groundwater, which will then export it to streamflow. Long time series ...

East Asian summer monsoon (EASM) precipitation received by northern China over the past 800 thousand years (ky) is characterized by dominant 100-ky periodicity, mainly attributed to CO2 and Northern Hemisphere insolation-driven ice sheet forcing. We established an EASM record in the Late Miocene from lacustrine sediments in the Qaidam Basin, northern China, which appears to exhibit a dominant 1...

designing effective strategies for sediment management and control is closely related to identification of sediment sources in a drainage basin. one of the methods for investigating sediment sources is using magnetic tracers for erosion and sediment yield studies. sediment source identification using magnetic characteristics is a simple, inexpensive, quick and non-destructive method having appl...