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NW Iran
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NW Iran-SE Turkey is a tectonically active zone related to the Arabia-Eurasia convergence, but the active stress state in this zone has not yet been clearly studied. To improve the knowledge of present-day stress state in this region, optimum reduced stress tensor was analysed. For this, a large number of earthquake focal mechanisms (277) were collected. The analyses show most mechanisms exhibit strike-slip to thrust faulting. These data indicate that this region is dominated by an N158° maximum horizontal compressive stress (SHmax) belonging to a transpressional tectonic regime.
21p
tanmocphong
29-01-2022
29
1
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The marine strata of the Qom Formation south of Uromieh (Baranduz) yielded a moderately diverse larger benthic foraminiferal fauna resembling the fauna already described from European marine sequences. The fauna allowed the author to correlate the larger foraminiferal assemblage of northwestern Iran with the standard shallow benthic zonation.
10p
vidonut2711
09-11-2019
7
1
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The Soursat Complex in northwestern of Iran is part of the Sanandaj-Sirjan metamorphic belt. Three granitoid suites are present: Type I– syenogranite and deformed syenogranite; Type II– Turkeh Dare and Pichagchi plutons; and Type III– quartz porphyry. The granites can be assigned to a medium-K calc-alkaline to high-K calc-alkaline series.
31p
vidonut2711
09-11-2019
5
1
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The Mount Sabalan district is regarded as the best place to investigate geothermal activities in northwest Iran. Since the last episode of volcanic activity in the Plio-Quaternary time, hot springs and surficial steams as conspicuous manifestation of geothermal activities have appeared around the slopes of Mount Sabalan.
13p
viminotaur2711
30-10-2019
11
0
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An abnormally odd and rare occurrence of a basaltic body has been discovered in the middle of the Gercus Formation within the large, double-plunging NW-SE trending Bekhair Anticline to the north of Duhok city, northern Iraq. This is the first discovery of such a volcanic body within the widely exposed Gercus Formation in northern Iraq, southeastern Turkey, and western Iran.
32p
viminotaur2711
30-10-2019
22
1
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Using the analytic hierarchy process (AHP) method for multi-index evaluation has special advantages, while the use of geographic information systems (GIS) is suitable for spatial analysis. Combining AHP with GIS provides an effective approach for studies of mineral potential mapping evaluation. Selection of potential areas for exploration is a complex process in which many diverse criteria are to be considered.
12p
anhnhoe11
12-04-2013
104
11
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