The study area from Sedimentary-structurl Units of Iran is located in Khoy ophiolite zone and Alborz-Azarbayjan zone. Studied area is in northwest Khoy between 44o 30´ E and 45o00´E longitudes and38o 30' N and 39o 00´ N latitudes. This research uses calculation of MORPHOTECTONIC INDEXES to study effects of active range boundary within range faults in study area on drainage pattern and river streams. Using the results of calculating some MORPHOTECTONICal index in combinations with other data types, neotectonical activities rate is determined in some selected basins.

Tectonic, plays a key role in the evolution of morphology and can be distinguished with MORPHOTECTONIC, rivers and structural parameters. An analysis of morphometric parameters illustrates that the development of them is associated with faults activities and rocks resistance. MORPHOTECTONIC analysis also supplies seismotectonic setting for a region. For appropriate and survey tectonic activities of Piranshahr fault in south west of Azarbaijan province as Northest part of Zagross Main Recent Fault, the MORPHOTECTONIC indices contain: Ratio of Valley-mouth width to Valley Height, Ratio of Valley-floor width to Valley Height, Ratio of Vc and Mountain Front Sinuosity has been calculated. The results of several indices are incorporated to highlight tectonic activity and provide an assessment of a high degree of MORPHOTECTONIC, Neotectonic activities. Piranshahr fault with 95 km length produced a seismic hazard magnitude ~ 6.9 in Richter scale.

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 photographs (1: 20000). All of maps drew by Arc/GIS. The results show that 40% of drainage basins in study region have high activity tectonic. This basins located in middle portion of Bozqoosh Mountains. 35% of basins have moderate values of tectonic activity. They located in eastern portion of study region. 25% of basins of Bozqoosh have shown the lowest values of tectonic activity. There are numerous of MORPHOTECTONIC evidences such as fault scarps, alluvial fans, fault valley, water fall and etc. which are in the north slope of Bozgoosh Mountains with high activity tectonic.

Kuhbanan fault is located between Tabas and Yazd blocks in the southeast margin of Central Iran microplate, extending from the northwest of Kerman to the east of Bafgh, with 300 km length and NW-SE strike. The fault is one of the most seismic structural trends in the region. The latest seismic activity of the fault occurred on the seventh of October, 2003 with earthquakes of magnitude of 3.8 on Richter scale over the Kuhbanan segment of the fault. Kuhbanan earthquake fault consists of several segments. Movement in the southeast and central segments has been dextral strike-slip with a large reverse component and in the northwest segments dextral strike-slip with a large normal component during Plio-Quaternary.MORPHOTECTONIC effects of the active kuhbanan fault in mountain fronts of Kerman-Kuhbanan range and west Bahabad mountain range are landform features such as young and prominent fault scarps, linear mountain fronts, well − defined triangular facets, narrow V-shape valleys with steep longitudinal profiles, steep slopes of valleys and mountains, long drainage basins, deflected and offset streams, pressure ridges, shutter ridges, linear ridges, linear valleys, springs, sag ponds, young and small pull-apart basins along the fault. Therefore, with respect to the variety and numerous landform features, kuhbanan fault is introduced as a special model of MORPHOTECTONIC landforms in Iran. Study of MORPHOTECTONIC landforms and calculation of geomorphic indices such as, SmF, Facet%, VF V, SL, K and HY in the 32 fronts and 33 rivers with similar rock resistance along the fault segments, indicate that the degree of tectonic activity has been different in the fault segments during the Plio-Quaternary times. Therefore, the fault segments can be classified as very active, active, moderately active and with low tectonic activity.Based on the landforms and morphometric indices obtained along the Kuhbnan fault, the fault segments are classified as follows:1) The first class segments: Gisk Dartangel, NW-Dehzou, Khan-Makan Toghrolijard, Charmis segments that have the highest tectonic activity. 2) the second class segments: Khanok, Rigabad, Dahou, Katgouyh, Gazouyh, Apang- Sarbagh, Dezouyh, SE Gavar, Dargazri-Darhod, Pasando-Babkham, Fakhrabad, Bonestan, Khoshabad, Hossianabad I., II, Kuh-e-Sorkh I, II, III, Kuh-e-segoush, segments have been active. 3) The third class segments: West Katgo, Abbasabad, south-east part of Dargas=Godgas, Gavar and Kuhbanan segments have low activity. 4) The fourth class segments: Rushk, Dasht-e-Khan, Babrouyeh and Asadabad segments have the lowest tectonic activity. It should be noted that based on MORPHOTECTONIC data the most active and active segments are coincided with earthquake fault segments. However, earthquakes have not occurred over some active segments. It seems that earthquakes might occur over these segments in the future, or active MORPHOTECTONIC data might not match the seismic activity of fault segments. Nevertheless, it is obvious that an appraisal of seismic activity of faults, based on the geomorphic indices and landforms features, must be taken into account with care.

1-Introduction Aghajari Fault has been located in the Dezful embayment, and it is one of the critical faults in the Khuzestan Province. Hence the study of geomorphic indices for determination of amounts of neo-tectonic activity is vital. In this research, with the application of remote sensing and GIS methods, the geomorphic indices along the Aghajari Fault have been studied. MORPHOTECTONIC is the study of geological features for determining the amounts of tectonic activity in each area (Burbank and Anderson, 2012; Grohmann, 2004). Determination, the amounts of geomorphic indices, can help to fast estimate from a different tectonic manner of faults in different parts. Several geomorphic indices can help the geologist for determining the different tectonic activity or neotectonic manner of faults. In this context, several geomorphic indices have been studied for the fault for the determination of neo-tectonic behaviors of Aghajari fault...

Ramhormoz Fault has been located in the Dezful embayment and it is active from point of tectonics. The Geomorphic indices including mountain front sinuosity (Smf), valley floor width to valley height ratio (Vf), basin shape index (Bs), and stream length– gradient index (SL) have been calculated for determination of various tectonic activities along the Ramhormoz fault. The mountain front sinuosity (Smf) index was calculated about 1. 003 to 1. 14 respectively in the active and inactive parts of the Ramhormoz fault. The amounts of valley floor width to valley height ratio (Vf) index show the range between 0. 37 to 13. 48 in the active parts with V shape valley morphology and inactive parts with U shape valley morphology respectively. The basin shape (Bs) index has been calculated between 6. 5 for the very active parts and, 0. 5 for the low active parts of the fault. The stream length– gradient (SL) index was calculated between the range of 227-14. 5 for the active and inactive parts of the fault respectively. The overlaying of the data layers was made and the active tectonic map of the study area was created with application of the GIS techniques. According to the active tectonic map the Ramhormoz fault was divided to the three classes of tectonic activity zones. Class 1 shows the high tectonic activity and class 3 shows the low tectonic activity parts. Results show more tectonic activity in the central and south west parts of the hanging wall respect to the other parts of the Ramhormoz fault.

Mahneshan area located in northwestern part of Zanjan Province contains highly diverse morphologic units. This morphologic diversity is mainly due to climate factors, tectonic movements, high rate of erosion and lithologic characteristics. Wind erosion is one of the most important factors creating wonderful geologic features such as some specific erosion landforms in this region. This study is concentrated on active tectonics of Mahneshan, analyzing structural and MORPHOTECTONIC characteristics of the region accompanied by field investigations. Ductile layers of Upper Red Formation have key role in regional kinematic deformation. Mahneshan and Angouran thrust faults are major NW trending active faults in this area. Active faults are mapped in satellite images. Field investigations represent that dominant regional tectonic activities have been active coeval with rock unit sedimentation in Pliocene-Quaternary. Arabia-Eurasia convergence is involved in active faulting along NW trending major thrust faults in the study area.

Remote sensing provides fast and economical information to study MORPHOTECTONIC and structural geology. Morphological and geomorphological analyses of topographic features have useful in structural and tectonic investigations. Some features and models of topography, for example; peaks, strike - ridge geomorphology, passes, plans, channels , pits ,three-dimensional views with imagery drape, cross-sections profile geometry, slope and aspect calculations, shaded relief, curvature maps, rose diagrams of lineations (faults, ridges,…) and structural trend can be extracted from SRTM through systematic digital tectonic geomorphology and digital terrain analysis. These procedures can be fundamental tools in tectonic analyses base on using remotely sensing data. Altogether, bases of this research are structural geology, geomorphology and digital terrain analysis that all extracted from SRTM. There are close communication between fault type and landforms, therefore, we investigated topographic fractures along Dehshir fault and calculated models of topography around it for MORPHOTECTONIC study.Materials and methods: We used SRTM to extracted topography features around Dehshir fault. We utilized satellite data include; Landsat, Aster data and geology maps with conjunction fieldwork observations. Digital topography investigation methods for systematic study of tectonic geomorphology features by DEMs along Dehshir fault are constructed respectively; (1) Geometric investigation of features linked to lineations. (2) Feature detection and parameter extraction from DEMs for tectonic geomorphology. In this section, we analyzed; elevation data, numerical differential geometry, digital drainage network and digital geomorphometry. Then, digital image processing of terrain data and spatial analysis of lineaments are done.This paper describes the MORPHOTECTONIC of Dehshir area using SRTM. Therefore, to access to the goal of study, analysis of  digital drainage network analysis; digital geomorphometry; digital image processing; lineament extraction and analysis; spatial and statistical analysis and digital elevation model-specific digital methods, such as shaded relief models, digital cross-sections, 3D surface modeling and topographic features are extracted from SRTM. Structural information from other sources, such as geological and topography maps, remotely sensed images and field observations were analyzed with geographic information system techniques.Results and discussion: SRTM analysis of the study area showed a distribution of elevation. Cross - sections across perpendicular of Dehshir fault in NE – SW direction also illustrated fault scarps. Shaded relief images have obviously shown lineaments (e.g.; drainages, channels, fault trace, ridges …). Contour map extracted from SRTM elongated along Dehshir fault and showed fault scarps. Rose diagram of lineaments illustrated MORPHOTECTONIC pattern NW-SE lanforms of the study area. In classified aspect maps are predominantly NE and SW hillside. Lineaments in the shaded relief, aspect, slope and curvature models showed much information for explanation of MORPHOTECTONIC.The results provide an acceptable regional MORPHOTECTONIC view of the study area. The geomorphology of the study area is dominated by a pattern of sub - parallel mountain ranges and intermountain plains (lowlands, mainly grabens). The study area landforms are strongly influenced by active faults movements (particularly strike-slip faults). The piedmont areas are covered with low slope surfaces (predominantly Holocene alluvium), originating from the mountain channels and spread for kilometers towards the lowlands. The bottom of the medial plains, known as "Kavir" (Persian term for playa), is covered with playa-type mud flats, evaporate (salt) lakes (e.g. Abarkooh, Marvast) and, only locally, by mobile sand dunes (e.g. along Dehshir fault at east of Abarkooh playa).Conclusion: The results show that digital terrain analysis methods applied on SRTM in the proposed way in this study could extract MORPHOTECTONIC features from SRTM along Dehshir fault and they contributed to the tectonic interpretation of the study area. According to the evidences extracted from SRTM along Dehshir fault, for example; fault traces, deflected and beheaded drainages, pattern of network drainages, erosion surfaces of uplifted and back erosion of drainages because of the location (situated in quaternary landforms), they are neotectonic evidences for activity of Dehshir fault during quaternary.

Landslide with MORPHOTECTONIC indices is related. MORPHOTECTONIC indices applicable tools for probability estimation and seismic planning of area. Landslides events are the most common natural threats that have been recorded in the Iran. Landslide hazard zonation planning is required for the sustainable management plan. Therefore, application of MORPHOTECTONIC indices to estimate landslide risk in the selected area was the aim of this research. The selected area comprises seven sub catchments at the south west of Iran which historically has experienced several earthquakes ranging between 2. 5 to 6. 5 magnitudes in the Richter scale. Morphological indices such as river length– gradient index (SL), the catchment, drainage basin asymmetry (AF), transverse topographic symmetry (TP), factor hypsometric integral (HI) and index of drainage basin shape (BS) were applied for seismic planning of study area. As a result, different indices were converted to the tectonic activity index (IAT) in the three categories. Besides, the resultant MORPHOTECTONICzoning map was compared with landslide risk event, and calculated showed that a good correlation between MORPHOTECTONIC indices and landslide risk event map was demonstrated in this study.

1-Introduction In this paper fundamental goal is discussed about tectonic activities and survey role of different factors of forming and deformations to understand better about origin of MORPHOTECTONIC of land forms occurring to reveal geomorphological patterns in the Bakharden-Quchan zone in the context of Arabia-Eurasia collision (Berberian, 1976; Lybris and Manby, 1999; Shabanian, 2009). 2-Methodology This paper uses of satellite images observations from Landsat 7, topographic data (SRTM), GIS and GPS data, geology and topographic maps, field observations of the MORPHOTECTONIC landforms to clarify the active tectonics in the Bakharden-Quchan zone. 3-Results and discussion In this zone there is an array active right lateral-strike slip fault that they obliquely have cut the range and produced offsets of several Kms in the geological structures. These faults have identifiable ends, where they turn into thrust and link to blind faults mechanism changing of faults to revers have caused shortening by thrusting in their ends bending. Through convergence of Arabia-Eurasia plates have put constantly under neotectonic activities this zone since last phase of Alpine orogeny. MORPHOTECTONIC features have revealed by uplifts, deformations, ruptures and incision of late Quaternary traces, displacement of channel this sections, shear and displacement of Quaternary alluvial fan deposits. There faults have rotated anti clockwise around their vertical axes to cause several Kms of NS shortening. They also require of several Kms along strike extension that is taken by the westward component of motion between south Caspian Sea basin, Shahrood Fault system and both Eurasia and central Iran (Hollingsworth, 2006: Bretis and Conrady, 2012). 4-Conclusion The most important results of this paper is the identification of an array of active right lateral-strike slip faults which are almost certainly responsible for major destructive earthquakes in both historical and modern. All of these faults have ended where they turn into thrusts and link to blind faults. Mechanism changing of these faults to reverse of caused to increase stress, shortening by thrusting in their ends bending and their neotectonic activities create different MORPHOTECTONIC features in Bakharden-Quchan zone particulary along the Qhuchan and Baghan-Garmab faults that there are enough MORPHOTECTONIC evidences (Tchalenko, 1975; Masson et al., 2007; Shabanian, 2009).