TY - JOUR T1 - Determination of predominant site period of loose terestrial units (Caliche) by microtremor measurements AU - Zorlu, Kıvanç PY - 2018 DA - June DO - 10.19111/bulletinofmre.348301 JF - Bulletin of the Mineral Research and Exploration JO - Bull.Min.Res.Exp. PB - Maden Tetkik ve Arama Genel Müdürlüğü WT - DergiPark SN - 0026-4563 SP - 205 EP - 220 VL - 156 IS - 156 LA - en AB - The caliche profi lesthat have been observed in arid-semi arid climate regions can be described asterrestrial formations which are vertical succession and composed predominantlyof calcium carbonate. At the top of the caliche profi le, there is hard panleyer as a weak rock and soft pan layer characterized by loose soil is existed.Caliche is formed by the displacement and/or cementation of soil, rock, andweathered material, and is usually found in unsaturated zones. In the studyarea, consist of caliche units located in Adana. It is noteworthy that thecaliches of Quaternary is widely crop out throughout the region, exhibited a flat topography in the region locate at this unit. The paleosolic deposits in theAdana Basin, which is characterized by climate oscillations in the Pleistoceneand surface waters rich in carbonate, following draining, capillarity andweathering, initially formed as a result of sedimentological and followed bypedological processes. Adana is located in the I. and II. degree seismic zone,where many earthquakes have been observed in historical and instrumentalperiods. It was found that the greatest structural damage sustained by theearthquakes that occurred in Adana especially in 1998, was seen in thebuildings located on caliche ; it is believed that the damage caused to thebuildings located on chalice can be attributed to the of morphologicallydistinct layers or horizons. This study determines the sediment amplifi cationcharacteristics and horizontal to vertical spectral ratio (H/V) within theborders. Accordingly, to demonstrate H/V between the hard pan and the soft panhorizon of the caliche, 24 microtremor measurements were performed on locations with soft pan, on locations with no hard pan, and on locations where the profile directly begins with the soft pan. KW - Adana KW - microtremor KW - earthquake KW - caliche KW - Nakamura method CR - Aydan, Ö., Ulusay, R., Kumsar, H., Sönmez, H., Tuncay, E. 1998. A site investigation of Adana-Ceyhan Earthquake of June 27, 1998. Turkish Earthquake Foundation. TDV/DR006-30, 131p. CR - Bayülke, N. 1978. Tuğla yığla yapıların depremdeki davranışı. Deprem Araştırma Enstitüsü Bülteni 6 (22), 26-41. CR - Clayton, C.R.I., Serratrice, J.F. 1977. The mechanical properties and behaviour of hard soils ad soft rocks. Proceedings of Geotechnical Engineering of Hard Soils - Soft Rocks Symposium, Athens, Greece. 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Determination of geomechanical properties and collapse potential of a caliche by in-situ and laboratory tests, Environmental Geology 56(7), 1449-1459. UR - https://doi.org/10.19111/bulletinofmre.348301 L1 - http://dergipark.org.tr/tr/download/article-file/357425 ER -