Morphometric analysis of active tectonic imprints at the junction of Büyük Menderes and Bozdoğan grabens, Western Anatolia

Download
index.pdf
2015
Usta, Sultan Gamze
Show full item record
182
views
80
downloads
Analysis of the basin asymmetry and morphometric indices is an effective methodology to detect surface signatures of active tectonic processes and to understand the differential uplift. Thus, basins controlled by active faults with different orientations provide a unique opportunity to evaluate fault controlled tilting. In this study, a morphometric analysis is conducted by means of the analytical capabilities of numerical computing and GIS software for an area characterized by orthogonal normal faults and nearly homogeneous lithology situated at the junction of Büyük Menderes and Bozdoğan graben systems. The morphometric parameters such as isobase, incision, surface roughness and basin asymmetry parameter; T-index are extracted to recognize tectonic control on drainage network development, basin morphology and landscape evolution. In order to reveal the useful and consistent information some output maps have been modified and new maps such as "DEM-Isobase" derived from output maps have been generated. Watershed based variations of output maps and new maps have been produced for further analysis by using the mean values of each parameter which have been calculated within each watershed. Tectonically controlled watersheds have been interpreted to be dominant around active faults. For this reason, analysis has concentrated on the areas around active faults. Fault based analysis reveals that dominant asymmetry direction along the western part of Büyük Menderes fault is toward SW indicating the possible uplift of the south east of Madran horst. The results of morphometric analysis conducted in this thesis study also enable to discuss the comparison of the tectonic activities of Büyük Menderes and Bozdoğan faults and shows that Bozdoğan fault is more active on the drainage network development, basin morphology and landscape evolution compared with Büyük Menderes fault.
Basins (Geology)., Morphotectonics., Geomorphology., Geology, Structural.
http://etd.lib.metu.edu.tr/upload/12618523/index.pdf
https://hdl.handle.net/11511/24454
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Morphometric evaluation of the Afsin-Elbistan lignite basin using kernel density estimation and Getis-Ord's statistics of DEM derived indices, SE Turkey
SARP, Gülcan; Duzgun, Sebnem (Elsevier BV, 2015-11-01)
A morphometric analysis of river network, basins and relief using geomorphic indices and geostatistical analyses of Digital Elevation Model (DEM) are useful tools for discussing the morphometric evolution of the basin area. In this study, three different indices including valley floor width to height ratio (V-f), stream gradient (SL), and stream sinuosity were applied to Afsin-Elbistan lignite basin to test the imprints of tectonic activity. Perturbations of these indices are usually indicative of differenc...
Palaeomagnetic evolution of the Cankiri Basin (central Anatolia, Turkey): implications for oroclinal bending due to indentation
Kaymakcı, Nuretdin; Langereis, Cor; White, Stan; van Dijk, Paul (Cambridge University Press (CUP), 2003-05-01)
Palaeomagnetic data in combination with palaeostress data and anisotropy of magnetic susceptibility orientations are utilized to develop a tectonic evolutionary model for the Early Tertiary part of the Omega(omega)-shaped Cankiri Basin (Turkey). The results reveal clockwise rotations in the northeast and anticlockwise rotations in the west and southeastern corner of the basin. The magnetic inclinations indicate a northward drift of the Cankiri Basin and support an indentation model for the Kirsehir Block. I...
GIS based geothermal potential assessment for Western Anatolia
Tüfekçi, Nesrin; Süzen, Mehmet Lütfi; Department of Geological Engineering (2006)
This thesis aims to predict the probable undiscovered geothermal systems through investigation of spatial relation between geothermal occurrences and its surrounding geological phenomenon in Western Anatolia. In this context, four different public data, which are epicenter map, lineament map, Bouger gravity anomaly and magnetic anomaly maps, are utilized. In order to extract the necessary information for each map layer the raw public data is converted to a synthetic data which are directly used in the analy...
Geoarchaelogical investigation of central anatolian caravanserais using gis
Ertepınar Kaymakcı, Pnar; Toprak, Vedat; Department of Geological Engineering (2005)
This study comprises analysis of geological, geomorphological constraints that played role in the site selection of caravanserais. In order to do this, 15 caravanserais located along a route from Nevşehir-Aksaray-Konya to Beyşehir were used. The data used in the study include a caravanserai database, lithological maps, and digital elevation model of the area. GIS analyses performed in the study are proximity, visibility, and probability distribution (PDA). The first step is the generation of the ancient tra...
Ground Motion Prediction Equations for the Vertical Ground Motion Component Based on the NGA-W2 Database
Gülerce, Zeynep; Abrahamson, Norman A.; Silva, Walter J. (SAGE Publications, 2017-05-01)
Empirical ground motion models for the vertical component from shallow crustal earthquakes in active tectonic regions are derived using the PEER NGA-West2 database. The model is applicable to magnitudes 3.0-8.0, distances of 0-300 km, and spectral periods of 0-10 s. The model input parameters are the same as used by Abrahamson et al. (2014) except that the nonlinear site response and depth to bedrock effects are evaluated but found to be insignificant. Regional differences in large distance attenuation and ...
Citation Formats
S. G. Usta, “Morphometric analysis of active tectonic imprints at the junction of Büyük Menderes and Bozdoğan grabens, Western Anatolia,” M.S. - Master of Science, Middle East Technical University, 2015.
METU IIS - Integrated Information Service open@metu.edu.tr