Çalıdere Havzası'nın (Armutlu Yarımadası, Yalova) Morfotektoniğinin Jeomorfometrik Analizlerle Değerlendirilmesi

Abstract

In this study, structural and tectonic factors which are effecting geomorphology of Çalıdere Basin which is one of the basin located at the north of Armutlu Peninsula, one of important morphotectonic factor in Marmara are assessed with geomorphometric index applications. The study is a geomorphometric analysis of river basin. And aim of the study is defining effects geologic structure and tectonic to basin's geomorphology and it's results. The structural and tectonic factors which are effecting basin's topography may be revealed quantitatively by using geomorphometric indexes. Therefore, geomorphometric indexes which are usually used for defining effects of geologic structure and tectonic on topograhpy such as hypsometric curve-hypsometric integral, transverse topographic symmetry, stream length gradient index, valley height-width ratio, are implemented into Çalıdere Basin. In implementation, 10 meter-resolution digital elevation model, geology data, active fault data of the research area and ArcGIS 10.2 which is one of the Geographic Information System software. Results have shown that the fault below the basin is an important tectonic factor for the geomorphology of the basin. The reason of both anormality in the stream lenght gradient index and the bow in the hypsometric curve is reflection of fault to morphology. Hypsometric integral, valley height-width ratio of the basin show that this is a young basin which was shaped by the effects of active tectonic process. The results of the study include data which can support geologic, tectonic and morphotectonic studies of the area.

Keywords

• geomorphometric analysis
• river basin morphometry
• morphotectonic
• geographical information systems