Gölcük

​Volcano type: Caldera

Volcano number: 213801

Latitude: 37.72°N

Longitude: 30.492°E

Elevation: ~1380 m

Distance to Ankara: ~320 km

Closest city: Isparta ~5 km

The Gölcük caldera is located in southwestern Turkey, near the city of Isparta. Holocene activity is unconfirmed, however lava dome eruptions are known as recently as 24,000 years. The caldera was partially destroyed by a phreatoplinian eruption, and large pyroclastic flows were produced. Lava domes, lava flows and a maar have formed within the caldera, which is now partially occupied by a lake.

 

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Golcuk Volcano ©Mehmet Çobankaya

 

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Pilav Tepe Dome ©Gökhan Atıcı

 

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Fall out deposits and pyrclastic rocks ©Gökhan Atıcı

 

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Gas bubbling (CO2, H2S) ©Gökhan Atıcı

 

References

Atakay, E., Atıcı, G., Çobankaya, M., Türkecan, A., Yurteri, E., Durgut, N.Ç., Dağlıyar, A., Karaman, B., Akar, M., Mutlu, H., Sağlam, F.M. 2017. Anadolu’nun Kuvaterner Volkanizması ve Potansiyel Volkanik Tehlikelerinin Araştırılması, MTA Bilimsel Etkinlikler Haftası, 06-10 Mart 2017 Ankara. 

Global Volcanism Program, 2013. Gölcük (213801) in Volcanoes of the World, v. 4.7.7. Venzke, E (ed.). Smithsonian Institution. Downloaded 18 Apr 2019 (https://volcano.si.edu/volcano.cfm?vn=213801). https://doi.org/10.5479/si.GVP.VOTW4-2013

Schmitt, A.K., Danışık, M., Siebel, W., Elitok, Ö., Chang, Y.-W., Shen, C.C. 2014. ‘’Late Pleistocene zircon ages for intracaldera domes at Gölcük (Isparta, Turkey)’’, Journal of Volcanology and Geothermal Research, 286, 24–29.