Thick ignimbrite deposits are associated with formation of the Gölcük caldera, which was partially destroyed by a phreatoplinian eruption. The caldera was partially filled by lava domes and flows and then modified by maar formation during the last phase
| Elevation | |
| Volcano Type | Caldera |
| Geologic Epoch | Pleistocene |
| Country | Turkey |
| Region | Mediterranean and Western Asia |
| Subregion | Turkey |
| Tectonic Setting | |
| Dominant Rock |
