Upliftment Estimation of the Zagros Transverse Fault in Iran Using Geoinformatics Technology

Abstract

Abstract:The Izeh fault zone is a transverse fault zone with dextral strike slip (and some reverse component) in the Zagros Mountains (Iran). It causes some structural deformations. This fault zone is acting as eastern boundary of Dezful Embayment and forms subsidence of the embayment. The fault has been recognized using remote sensing techniques in conjunction with surface and subsurface analyses. The stratigraphic columns have been prepared in 3D form using Geographical Information System (GIS) tools on the basis of structural styles and thickness of lithologic units. Height differences for erosion levels have been calculated in stratigraphic columns with respect to the subsidence in the Dezful Embayment, which is related to Izeh zone. These height differences have been estimated to be 5,430 m in the central part (and 5,844 m in the northern part) from the Eocene to recent times. This study shows that comparison of the same erosion levels in Asmari-Pabdeh formation boundaries for interior and eastern block of the Izeh fault zone with the absolute uplifting due to the fault activity which is about 533 m per million years in the Izeh zone. The present study reveals that subtracting the absolute uplifting from total subsidence; the real subsidence of Dezful embayment from Eocene to Recent is 0.13 mm/year. The mean rate of uplifting along the Izeh fault zone is 0.015 mm/year.

Shallow Landslide Susceptibility Mapping: A Comparison between Logistic Model Tree, Logistic Regression, Naïve Bayes Tree, Artificial Neural Network, and Support Vector Machine Algorithms

“…Although landslides commonly can be attributed to natural (topographic, geological, geophysical, and hydrological) factors, Iran, like other countries, has experienced a large number of human-induced landslides in recent years due to ground modification and construction that has been driven by economic and population growth [5][6][7]. The country lies within a seismically active mountainous region, and large earthquakes trigger landslides in mountainous parts of the country, notably the Alborz and Zagros Mountains [8,9]. Nearly 2600 landslides were reported in Iran up to 2000 [10], and those in the 20th century alone are responsible for 30,000 deaths and nearly 60,000 injuries [11].…”

A recent scenario of mass wasting and its impact on the transportation in Alborz Mountains, Iran using geo-information technology

“…The central-west Alborz Mountains in Iran has received enormous stress from SW to NE directions (Ayazi et al 2010;Pirasteh et al 2010a). It is possibly originated from the Red Sea due to the neo-tectonic activity that creates subduction changing the landscapes and topography in the tectonic active areas (Ali and Pirasteh 2003;Pirasteh et al 2009a, b;Safari et al 2009). Recently, the central and western Alborz region has faced variety of falls due to its rugged topography, active tectonic, high seismicity and extreme weather conditions.…”

Novel Adsorption Method for Contaminated Water by Wild Endemic Almond: Amygdalus scoparia

“…Distribution Almond mountain areas in Zagros foothills of khuzestan begins and in altitudes 600 to 1500 meters above sea level is located ( Figure 1). Around the city of Dezful, Izeh, Baghmalek, Masjed Soleiman and Haftgol abundant of almond can be seen [13]. The Izeh fault zone is a transverse fault zone with dextral strike slip (and some reverse component) in the Zagros Mountains (Iran).…”

“…It causes some structural deformations. This fault zone is acting as eastern boundary of Dezful Embayment and forms subsidence of the embayment 13 . The Type of regional climate is related to the dry forests and minimum temperature of 18.11 °C and the average temperature of 23 °C and the maximum temperature are 48.5 °C.…”