10. Arkeometri Sonuçları Toplantısı - Kültür ve Turizm Bakanlığı

GEOMORPHOLOGICAL FEATURES OF THE SİNAPTEPEHakan YİGİTBAŞIOGLU *Süha KOCAKUŞAKThe Sinap Tepe (Tepe means hill) is located noıthwesı of Ankara,near of Kazan which is situated on Ankara-İstanbul road. Hill has beenformed with large flat surface when his fırst stage of occurance. Later,this fiat surface, affect of tectonic movements and climatic changes, iscutted by rivers and separated to smailer parts. The Sinap Tepe is preservedpart of that plateau until today.Volcanic activity has begun Paleocene in Arıkara region and continuedrather dynamic until middle Miocene. VoıCanic activity graduallylost his violency towards to Mioceııe-Pliocene boundary. Meanwhile,materials of Köroğlu Moııntains has been transported by rivers and accumulatedon valley and basins. Today, this pieces of plateaıı has aboutII00 m elevation that has been cutted into pieces affect of neotectonicmovements. The Sinap Tepe is separated by steep slope from higher erosinalsurface,The Sinap Tepe is preserved with conglomerate layer which formedfrom bonded volcanic pebble and blocks. The Sinap Tepe has rather flatsıırface on top. Inclination of slope is less than % ı. it is surrounded withconglomerate layer which looks like a wall by a majority. Neogene sedimentscan has casy weatheıing feature for this reason, slope which is underconglomerate, is gently inclination. Cement of conglomerate is notenoııgh strong, as a resıılt of this some big pieces of rocks can leave fromconglomerate. .This area has a humid region in Pliocene, as a resıılt of this, largematerials has been transported by rivers.The Sinap Tepe surrounded with V shaped valleys. They have beencııtted surface 80-90 m depth. Neogene sediments has been cutted rapidlyby rivers and valleys have developed to backward. After that erosion,narrow ridges occured, like Seyit Tepe, Dedelik Tepe, Deli KayıncakTepe and Gavıır Tepe, southwest and northwest side of the Sinap Tepe.* Yard.Doç.Dr. Hakan YIölTBAŞIOGLU, Ankara Üniversitesi Dil ve Tarih Coğrafya Fakülresi.CoğrafyaBölümü, Sıhhiye ANKARA .. .Yard.Doç. Dr. Süha KOCAKUŞAK, Ankara Üniversitesi Dil ve Tarih Coğrafya Fakültesi.Coğrafya Bölümü, Sıhhiye ANKARA183