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Bulletin of the Mineral Research and Exploration Bull. Min. Res. Exp. (2017) 154:1-14 154 BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION Foreign Edition 2017 154 ISSN: 0026-4563 BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION RESEARCH THE MINERAL BULLETIN OF CONTENTS One of the Main Neotectonic Structures in the NW Central Anatolia: Beypazarı Blind Thrust Zone and Related Fault- Propagation Folds Bulletin of the Mineral .........................................................................................................................Gürol SEYİTOĞLU, Korhan ESAT and Bülent KAYPAK 1 Structural Features of the Niğde Massif in the Çamardı (Niğde) District ..............................................................................................................................................Ramazan DEMİRCİOĞLU and Yaşar EREN 15 Stratigraphy and Structure of the Southeastern Part of Piramagroon Anticline, Sulaimani Area, Northeast Iraq .......................................................................................................................................Kamal Haji KARIM and Polla Azad KHANAQA 27 An Approach to Coast Edge Line at the Eastern Antalya Marginal-Marine Sea Sides ................................................................................................................Muhittin GÖRMÜŞ, Levent BAŞAYİĞİT and Ahmet UYSAL 41 Grain Size, Total Heavy Mineral and Element Distribution and Control Factors Of Current Sediments on the Floor of Hisarönü and Datça Bays .............................................................................................Barbaros ŞİMŞEK, Mustafa ERGİN, Murat EVREN, Özgür TÜRKMEN, 59 Serkan PALAS, Hakan PEHLİVAN, Bahri Serkan AYDEMİR and Füsun ÖCAL Maastrichtian-Selandian Planktonic Foraminifera Biostratigraphy and Palaeoecological Interpretation of Akveren Formation in Bartin Area (Western Black Sea, Turkey) ....................................................................................................................................................................................... Caner KAYA ÖZER 83 Sedimentology, Mineralogy and Origin of the First Discover Magnesite-Dolomite Belt in Ma’rib District, SW Arabian Peninsula .......................................................................................................................................................... Sa’ad Zeki A.kader AL-MASHAIKIE 109 Sodium Sulfate (Glauberite-Bloedite) - Halite Association in the Tertiary (Upper Miosene - Pliocene) Katrandedetepe Formation, Ereğli-Bor Basin, Turkey Research and Exploration ............................................................... Gökhan KADINKIZ, Memet PEKGÖZ, Mustafa KARAKAŞ and Abdurrahman MURAT 135 Permeability of Savcıbey Dam (Bilecik) Axis Location and Design of Grout Curtain .....................................................................................................................................Mustafa Can CANOĞLU and Bedri KURTULUŞ 157 The Importance of Amount of Settlement in Determining the Bearing Capacity of Soils ..................................................................................................................Selçuk ALEMDAĞ, Aslıhan CİNOĞLU and Elif GACENER 169 Investigation of Güllük (Muğla) Wetland Using Stable Isotopes (δ18O, δD) ............................................................................................................................................................................................ Melis A. SOMAY 181 Assessment of Groundwater Metal-Metalloid Content Using Geostatistical Methods in Karabağlar Polje (Muğla, Turkey) ...........................................................................................................................Bedri KURTULUŞ , Çağdaş SAĞIR and Özgür AVŞAR 193 An Investigation on Single-Particle Impact Breakage Functions of a Gold Ore by Drop-Weight Technique ............................................................................................................................................................................................ Ömürden GENÇ 207 The Reaction of Physical Transformation of the Gravity Data And Linearity Dilemma ................................................................................................................................................................................................. Ertan TOKER Phone : +90 (312) 201 10 00 2017 215 Fax : +90 (312) 287 91 88 Response to the “Reaction of the Physical Transformation of the Gravity Data and Linearity Dilemma” ..................................................................................................................................................................................................... Uğur AKIN 219 http://bulletin.mta.gov.tr Adress : MTA 06520 - Ankara - TURKEY Bulletin of the Mineral Research and Exploration Notes to the Authors ............................................................................................... 221 ONE OF THE MAIN NEOTECTONIC STRUCTURES IN THE NW CENTRAL ANATOLIA: BEYPAZARI BLIND THRUST ZONE AND RELATED FAULT-PROPAGATION FOLDS Gürol SEYİTOĞLUa*, Korhan ESATa and Bülent KAYPAKb aAnkara University, Dept. of Geological Eng., Tectonics Research Group, Tandoğan, Ankara bAnkara University, Dept. of Geophysical Eng., Gölbaşı, Ankara Research Article Keywords: ABSTRACT Beypazarı, Blind Thrust, This paper suggests that the structure known as “Beypazarı flexure / monocline” in the Turkish geology literature should Neotectonics, Earthquake, be named as “Beypazarı fault-propagation folds”. Beypazarı, Kilci and Başören blind thrusts together with Erenler back Central Anatolia, Turkey thrust constitute the Beypazarı Blind Thrust Zone which is an active neotectonic structure as indicated by earthquake activity. NW-SE contraction created by the interaction between the North Anatolian Fault Zone, the Kırıkkale-Erbaa Fault Zone and the Eskişehir Fault Zone produced the Eldivan-Elmadağ Pinched Crustal Wedge, the Abdüsselam Received: 27.04.2016 Pinched Crustal Wedge and the Beypazarı Blind Thrust Zone. These structures take up the internal deformation of the Accepted: 08.09.2016 Anatolian Plate. 1. Introduction the right lateral North Anatolian Fault and the Eskişehir Fault. This NW-SE contraction produces Beypazarı flexure (Rondot, 1956; Kalafatçıoğlu the NE-SW trending thrust faults, folding axes and and Uysallı, 1964; Kavuşan, 1993a), later known as monoclines that most prominent one is named as the Beypazarı monocline (Yağmurlu et al., 1988; Demirci, Beypazarı-Çayırhan monocline. 2000) is one of the important structures in NW central Anatolia. The region between Beypazarı and Kavuşan (1993a), however, proposed that in Çayırhan were mainly investigated by geochemistry every stage of the Beypazarı-Çayırhan basin, NW- oriented studies due to lignite, trona and geothermal SE contraction was operational. It is noted that the resources (Helvacı et al., 1981; Özpeker et al., 1991; effect of fractures is fading towards the young strata Suner, 1993; Kavuşan, 1993b; Karadenizli 1995; and turns to folding. Demirci (2000) determined three Orti et al., 2002; Özçelik, 2002; Özgüm et al., 2003; different regional tectonic phases, E-W contraction, Özçelik and Altınsoy, 2005; Diker et al., 2006; Şener, N-S contraction and final extension. It is also noted that 2007; Garcia-Veigas et al., 2013; Bechtel et al., 2014; the final extension is not observed around Beypazarı Pehlivanlı et al., 2014). During trona mining, the (Demirci, 2000, p.142). problems about rock mechanics and hydrogeology were also investigated (Aksoy et al., 2006; Apaydın, Esat and Seyitoğlu (2010), Esat (2011), Esat et al. 2010). Structural geology / tectonics oriented studies, (2016) and Esat et al. (2017) suggested that the NW- however, are very limited (Yağmurlu et al., 1988; İnci, SE contractional tectonic regime is developed in the 1991; Kavuşan, 1993a; Demirci, 2000). triangle-like area between the North Anatolian Fault Zone, the Eskişehir Fault Zone and the Kırıkkale- Yağmurlu et al. (1988) suggested that the Erbaa Fault Zone (Figure 1). Due to the interaction Beypazarı-Çayırhan Neogene basin was initiated in of these fault zones, the Eldivan-Elmadağ Pinched Early Miocene under extensional tectonic regime. Crustal Wedge (EPCW) is developed and mapped After Pliocene the basin deformed under NW-SE in detail (Seyitoğlu et al., 2000; 2009). Abdüsselam contraction that is created by the interaction between Pinched Crustal Wedge (APCW) is recognized more * Corresponding author: Gürol Seyitoğlu, [email protected] http://dx.doi.org/10.19111/bmre.42566 1 Bull. Min. Res. Exp. (2017) 154:1-14 recently (Esat, 2011; Esat et al., 2017). The third 21.5 ± 0.9 Ma (Early Miocene). Hırka formation structure observed in the triangle-like area is the interfingers with Akpınar formation having alternation Beypazarı Blind Thrust Zone (BBTZ) which is the of siliceous limestone, chert, tuff, claystone and subject of this paper (Figure 1). mudstone. Conformably overlain Çayırhan formation is composed of greenish claystone, mudstone, marl 2. The Stratigraphy of Beypazarı-Çayırhan and sandstone layers. Mudcracks and salt crystals Neogene Basin are observed to be common. Bozbelen formation is made up of reddish conglomerate, sandstone and According to Helvacı (2010) who updated mudstone. Kirmir formation, having green claystone previous studies with new data, Late Cenozoic with gypsum layers and bedded gypsum, laterally and stratigraphy starts with Paleocene Kızılçay vertically pass into Bozbelen formation and Sarıyer Group
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