Future changes (2015–2100) in precipitation and meteorological droughts Lake Urmia Basin were investigated using an average mean ensemble of eight general circulation models (GCMs) with high-resolution datasets socioeconomic pathway scenarios (SSPs) from the Coupled Model Intercomparison Project (CMIP6). In order to project drought, standardized index (SPI) was calculated. Overall, results reve...

Some populations of Gundelia tournefortii were compared based on chemotaxonomical characteristics. In this study, some biochemical compounds such as total protein and storage proteins of shoot were studied. The populations were compared on the basis of biochemical characteristics using statistical methods. Different populations were collected from mountains of west Azarbaijan province. Total pr...

The early Cambrian Takab iron ore deposit is situated in the northern part of Sanandaj-Sirjan zone, western Iran. It consists banded, nodular and disseminated magnetite hosted folded micaschists. Trace element Fe O isotopic experiments reveal various hydrothermal precipitation environments under reduced to slightly oxidizing conditions. Disseminated has high Ti (945–1940 ppm) positively correla...

based on, historical seismicity, position of 19-century instrumental epicenters, fault zones, relation of seismicity with active faults, and structural geology, statistics of earthquake activites, model studies for estimation of acceleration, and other information of intensities of iranian earthquakes, and for simplicity in the usage, the country is divided into two intensity provinces. in the ...

The interpretation of low-temperature thermochronology (LTT) data in magmatic and metallogenic provinces requires a knowledge the geothermal field through time. There, challenge is differentiating rapid cooling following transient perturbations geotherms (reheating) from exhumational induced by erosion during tectonic uplift or normal faulting. Takab Range Complex (NW Iran) basement-cored range...

Abstract Most conventional statistical methods aiming at defining geochemical concentration thresholds for separating anomalies from background have limited effectiveness in areas with complex geological settings and variable lithology. In this paper, median+2MAD as a method of exploratory data analysis (EDA) and concentration-area (C-A) fractal model as two effective approaches in separation g...