SEDIMENTOLOGY OF OYLAT CAVE SEDIMENTARY ROCKS İNEGÖL (BURSA)

Year 2002, Volume: 123 Issue: 124, 67 - 67, 01.04.2002

Eşref Atabey Lütfi Nazik , Koray Törk

Abstract

Oylat cave is
located at 17 km southeast of the İnegöl (Bursa) in the exit of Oylat River
canyon. Oylat cave has been developed at the intersection of two fault zones
striking along WNW-ESE and NE-SW directions in recrystalized limestone unit of
Permian-Triassic age. Clastics and carbonate sediments are in the Oylat cave developet
due to karstification. The cave, presenting multi-stage development character
can be divided into three sections. In the third section karst breccias,
siltstone and mudstone, in the second section the great rimstone pools and
flowstones had grown. In the first division at the end of the cave huge rock
fragments due to the collapsing of roof, karst breccia, stalactite, stalacmite,
soda straws, flowstones and cave pearls (pisolites) had grown. Moreever, in
this part, a sedimentary sequence formed by a alteration of conglomerate,
sandstone, siltstone and mudstone crops out. The clastic sediments in the Oylat
cave is deposited from the sediments carried by surficial water entering the
cave system, and flowstones, rimstones, cave pearls have been formed by the
dripping from the cave roof, whereas rimstones pools were formed by the steadly
flowing intra cave river.

Keywords

-

References

• Atabey. E.: Nazik, L. ve Törk, K., 2001, Oylat mağa- rası çökelleri ve depolanma mekanizması, 54. Türkiye Jeoloji Kurultayı Bildiri Özleri, 42, An- kara.
• Bernard, A. J.. 1973, Ores in sediments, G. C. Ams- tutz and A. J. Bernard (Ed). 43-47.
• Esteban. M. ve Klappa, C. F., 1983. Subaerial Expo- sure, Carbonate depositional environments. (Ed. By Peter A. Scholle, Don. G. Bebout. Clyde H. Moore), AAPG Memoir, 33. Tulsa.
• Genç, Ş.: Selçuk, H.; Cevher, F.; Gözler, Z.; Kara- man, T.; Bilgi, C. ve Akçören, F., 1986. inegöl (Bursa)-Pazaryeri (Bilecik) arasının jeolojisi. MTA Jeoloji Etüt. Arşiv No: 255, Ankara (Ya- yımlanmamış).
• Gillieson. D.. 1996, Caves: process development and management. Oxford, Blackwell.
• Koçyiğit. A.; Kaymakçı, N.: Dirik, K.; Rojay, B. F.: Öz- can. E. ve Özçelik. Y., 1991. Geological characteristics of the region between İnegöl- Bilecik-Bozhüyük. METU, T.P. Co. Applied Research Project, No: 90-03-09-01-05 (Yayımlanmamış).
• Nazik, L.: Törk, K.; Özel. E.; Mengi, H. ve Aksoy, B., 1997, Güney Marmara bölgesinin (Balıkesir, Bursa, Bilecik) doğal mağaraları, MTA Rap. No: 10046. (Yayımlanmamış).
• ; Törk, K.: Atabey, E.: Mengi. H.; Özel. E.: Aksoy, B. ve Acar, C., 2001, Çok dönemli-çok kökenli gelişimi karakterize eden mağaralara bir örnek: Oylat mağarası (İnegöl-Bursa). 54. Türkiye Jeoloji Kurultayı Bildiri Özleri, 47, An- kara.
• Zuffardi, A. J., 1976, Handbook of stratabound and stratiform ore deposits. K. H. Wolf (Ed) Berlin.III. 175-212