[1]: 370 Lake Beyşehir occupies its southern part, while at its northwestern end is the village of Yarıkkaya.
[1]: 372 The Yalvaç Basin's shape and size have been mostly the same since its formation, either during or shortly before the Middle Miocene, and sedimentary deposition has been occurring here since then.
[1]: 380 The primary fault directions are northwest–southeast and northeast–southwest, indicating that the local tectonics are controlled by two main "zones of weakness".
[1]: 382 The Kumdanlı Fault Zone itself runs for about 20 km, from Mısırlı in the northeast to south of Aşağıtırtar in the southwest before disappearing into Lake Hoyran.
[1]: 384 The Yaka Fault Zone controls the southern margin of the Yalvaç Basin and separates the Yarıkkaya Formation from the underlying basement rocks.