Archive for April 2010

Ottoman mortars: why historical Ottoman buildings were so resistant against serious earthquakes

April 26, 2010

An interesting study published by Binici et al., in the Journal of Construction and Building Materials about the mortars (inert siliceous materials used in construction to bond brick, stone and blocks) used in historical Ottoman buildings in Erzurum province. The physico-chemical and microscopic properties of the mortars have been studied by SEM, XRD, EDS analysis. Binici et al. revealed that mortars with higher SiO2 + Al2O3 + Fe2O3 values have higher hydraulicity and cementation indices which result in higher compressive strengths. They concluded that this is the main reason why historical Ottoman buildings have been so resistant against serious earthquakes for centuries. doi:10.1016/j.conbuildmat.2010.03.013

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Deep crustal structure of NW Turkey

April 26, 2010

The deep crustal structure of the Polatlı-Nallıhan-Karasu (NW Turkey) area was revealed as a part of a project undertaken by the General Directorate of Mineral Research of Turkey. Kaya (2010), from Sivas Cumhuriyet University, published Magnetotelluric and Transient Electromagnetic measurement results in the recent volume of Tectonophysics. According to the data collected from 44 stations located along a 250 km profile crossing in succession the İstanbul Zone, Intra-Pontid Suture, Sakarya Continent, İzmir-Ankara Suture, Tavşanlı Zone (the Tauride-Anatolide Belt), Intra-Pontid Suture and Sakarya Continent, four layers with distinctive resistivity values were revealed. For more detailed information, please refer to doi:10.1016/j.tecto.2010.04.019

63rd Turkish Geological Congress

April 7, 2010

The 63rd Geological Congress of Turkey, one of the Turkey‘s most important and long-term scientific conference, is held in Ankara this week (5-9 April 2010). This traditional conference is featuring numerous oral and poster presentations from many leading scholars and experts in and out of Turkey, on the latest geological research in a wide range of themes, including tectonics, paleomagnetism, sedimentology, mineralogy, volcanism, geochemistry, paleontology and many others. You can visit and see the current program and abstracts from http://www.jmo.org.tr/etkinlikler/kurultay/