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Geophysical Application On Cave Detection; A Case Study In Yarimburgaz, Küçükçekmece Lake, Nw Istanbul, Turkey
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 9th Congress of the Balkan Geophysical Society, Nov 2017, Volume 2017, p.1 - 5
Abstract
The Yarımburgaz cave which is located in the city of İstanbul, NW Turkey plays an important host to the first human culture and preserve significant archaeological and paleontological resources. The cave was formed as a result of a subterranean stream erosion on the limestones of the Eocene Kirklareli formation. It has been reported that a double cave with upper and lower entrance chambers exist, although no geophysical research was conducted to detect the cave’s trunk passages and the extend of the sediment fill inside the cave. The aim of this study was to test the preferred order for detection the response to different geophysical methods applied on the cave. We therefore carried out a series of geophysical study including multichannel analysis of surface wave (MASW) 2-microtremor array method, 3-single station microtremor measurements, 4-electrical tomography (ET) measurements to determine the size, position, and depth of sinkholes inside the caves.