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Öğe Mineralogy and geochemistry of marine palygorskite of upper paleogene age, (Southeastern Turkey)(Geological Society of America, 2018) Özsaraç, Şafak; Yalçın, Hüseyin; Tetiker, SemaThis study contains Becirman Formation of Late Paleogene age outcropping Batman-Gercus and Mardin-Dargecit areas in the Southeast Anatolian Authouctonous of Arabian Plate. The unit is formed of red colored dolomitic shale-marl-sandstone and white-cream colored carbonate rocks (dolomite, dolomitic limestone) intercalations. According to whole-rock analyses results of X-ray diffraction (XRD), minerals are represented, respectively in abundance, dolomite, phyllosilicate (palygorskite, smectite, chlorite, vermiculite, illite, serpentine and mixed layered C-V), calcite, feldspar, quartz, hematite and goethite. Phyllosilicates determining on XRD clay fractions comprise mineral paragenesis with palygorskite + smectite or vermiculite in Gercus area and palygorskite + chlorite + vermiculite / C-V, and chlorite + illite + serpentine in Dargecit area. Palygorskite minerals (2-10 mm-fibres length) occurred after dolomites and matrix in the dolomitic marl and sandstones, respectively, on scanning electron microscope (SEM) studies. Other associated minerals as smectite and chlorite / C-V are observed as thin leaves. Major element geochemistry of palygorskite-rich clay fractions indicates that these minerals are rich in Mg-Al-Fe. Trace element quantities of palygorskites on normalized spider diagrams have enrichments and depletions, respectively, compared to chondrite and North America Shale Composites (NASC). SEM views, existence of serpantine, especially increase of Cr and Ni concentrations, which indicate that the source of Becirman Formation is serpentinized ophiolitic rocks of Upper Cretaceous age in north of the basin. On the other hand, palygorskites are formed from dolomites and matrix by mechanisms of diagenetic transformation and sedimentary neoformation, respectively.Öğe Hadim Konya Türkiye çevresindeki Hacıalabaz formasyonu dolomitlerinin (üst jurasik) petrografik ve jeokimyasal özellikleri(Selçuk Üniversitesi, 2010) Dinç, Salih; Özkan, Ali MüjdatÖğe Geochemistry of Kızılağaç (Muş) metagranite exposed at Bitlis Massif, Eastern Anatolia(Batman Üniversitesi, 2018) Baran, Hacı Alim; Çoban, Hakan; Kumral, Mustafa; Polat, Süleyman; Kalkan, Özcan AliÖğe Geochemical features of Menteşe formation dolomites (Rhaetian) in the Karacahisar-Kasımlar area (Isparta-Turkey)(Nevşehir Hacı Bektaş Veli Üniversitesi, 2017) Dinç, Salih; Özkan, Ali MüjdatÖğe Doğaltaşların sanata dönüştüğü yer Batman Üniversitesi(TMMOB Jeoloji Mühendisleri Odası, 2013) Baran, Hacı Alim; Arslan, Şükrü; Kınacı, Eyyüp Hikmet; Yaldız, Tahsin; Pınarkara, Şükrü Yavuz; Nalbantçılar, Mahmut TahirÖğe Mineral exploration using remote sensing: the case of Hakkari(Dicle University, 2019) Baran, Hacı Alim; Nalbantçılar, Mahmut TahirHakkari is an important province in terms of natural resources. It is a city where mining activities have been observed since the Roman Period, which is located in an important metallogenic belt of our country and which has become famous in this field with the increasing mining activities in recent years. The region has a geological structure consisting mainly of carbonated rocks, ranging from Permian to Jurassic age. On these units, Campanian-Lower Maastrichtian aged Yüksekova melange, Paleocene and Miocene aged sediments are unconformably observed. The region is geologically passive continental margin. These geological environments are important for metals such as Cu, Pb, Zn and some industrial materials such as barite. When the mineralizations known in Hakkari are examined; there are 3 pieces chrome quarries connected to ophiolitic melange, 5 pieces marble quarries connected to carbonate rocks, 10 pieces Pb-Zn and 2 Cu deposits. Considering its geological structure, characteristics and existing mineral deposits, it is highly likely to host other mineralizations whose existence has not been determined. In this study, geological structure and tectonic environment of Hakkari province have been investigated and remote sensing techniques have been used in order to determine existing mineral deposits and potential potential mine sites. In this context, lithological mapping, band ratio, contrast stretching, color composite image generation techniques were used on Landsat 8 satellite image of Hakkari province. As it is known, most of the mineral deposits are not observed directly on the surface. These deposits can often be determined by the determination of the alteration minerals or zones indicating mineralization. In this context, as a result of determination of alteration sites with the help of ferrous formations, clay and hydroxyl minerals, the detection of existing deposits has been performed successfully. In addition to the detection of existing deposits, the presence of 2 possible mining sites in the southeast of the province was determined.Öğe Muş barit yataklarının jeololojik ve endüstriyel özellikleri(Pamukkale Üniversitesi, 2012) Taşdelen, SUAT; Baran, Hacı Alim; Kumral, Mustafa; Kargı, HulusiBitlis metamorfikleri Türkiye’nin güneydoğusunda bulunur ve pekçok cevherleşmeye ev sahipliği yapan bir komplekstir. Muş baritleri, Orta Devoniyen yaşlı Meydan Formasyonuna ait rekristalize (yer yer dolomitik) kireçtaşları içerisinde oluşmuştur. Cevherleşme yan kayaçları olan kireçtaşlarıyla uyumlu olarak gözlenen SEDEX tip ve yan kayaçları kesen MVT tip olmak üzere iki farklı karakterde gözlenmektedir. Cevherleşmeye az oranda sulfid mineralizasyonu eşlik eder. MVT baritleri SEDEX oluşumlara oranla daha fazla sulfid mineralleri içerirler. Mineral parajenezi barit, pirit, kalkopirirt, sfalerit, galen, kalkozin, kovellin, malakit, azurit, hematit, limonit ve kuvarstan oluşmaktadır. Cevherleşmelerin barit konsantrasyonu % 20-69, yan kayacın ise % 2-24 arasında değişmektedir. Baritin endüstride kullanım alanlarından birisi de ağır beton üretimidir. Bölgeden toplanan kum, barit çakılı ve çimento kullanılarak barit agregası oluşturulmuştur. Agreganın birim ağırlığı 2600 ile 3000 kg/m3 , özgül ağırlığı 3,9 gr/cm3 ile 4,3 gr/cm3 arasında değişmektedir. Baritlerinin ortalama yoğunlukları 4,43 gr/cm3 ’tür. Baritlerin en düşük parlaklık değeri 87,4 en yüksek parlaklık değeri 89,2’dir. Sarılık indeksi değerleri 6,1 ile 7,1, arasında gözlenmektedir. Bu sonuçlara gore bölge baritleri endüstriyel kullanıma uygundur.Öğe Batman şehir merkezinin toprak kirliliğinin araştırılması(TMMOB Jeoloji Mühendisleri Odası, 2021) Baran, Hacı Alim; Gümüş Kıral, NurcanÖğe Petrographic characteristics of the Hacıalabaz formation dolomites (upper jurassic) ın the Bagbası (Hadım-Konya/Turkey) area(Cite Factor, 2011) Dinç, Salih; Özkan, Ali MüjdatThe objective of this study is to determine the sedimentary properties of dolomites (Upper Jurassic) in terms of petrography, which belong to the Hacialabaz Formation existing at the surroundings of Bagbasi District lying at the south of Konya City. Dolomite, the unit formed with dolomitic limestone and limestone begins with gray or dark gray colored, moderate-thick layered, sugar textured dolomitic limestones including micritic intermediate layers at the bottom, and continues with gray colored, medium layered limestones through the upper parts. Dark gray colored, moderate-thick layered breccioid like appearing limestone at some layers and dolomitized intermediate layers form the upper parts. Hacialabaz Formation has begun to settle as the direct carbonate sedimentation in a transgression making sea after a long emerging period. Green algae like Clypeina jurassica, Cambelliella striata, Salpingoporella sp. and foraminifera fossils like Valvulina lugeoni, Kurnubia cf. palastiniensis, Valvulamina sp., Opthalmidium sp., Siphovalvulina sp., Haurania sp., Miliolidae were found in the Hacialabaz Formation settled in shallow-marine carbonate platform environment (tidal-subtidal and restricted lagoon). Eight dolomite-rock textures are recognized and classified according to crystal-size distribution and crystal-boundary shape. These is made of unimodal, very fine to fine-crystalline planar-s (subhedral) mosaic dolomite; unimodal, medium to coarse-crystalline planar-s (subhedral) mosaic dolomite; coarse to very coarse- crystalline planar-s (subhedral) dolomite; medium to coarse-crystalline planar-e (euhedral) mosaic dolomite; medium to coarse-crystalline planar-e (euhedral) dolomite; coarse to very coarse-crystalline non-planar-a (anhedral) dolomite; coarse to very coarse-crystalline non-planar-c (cement) dolomite; polymodal, planar-s (subhedral) to planar-e (euhedral) mosaic dolomite. Dolomitization is closely associated with the development of secondary porosity; dolomitization pre-and post-dates dissolution and corrosion and no secondary porosity generation is present in the associated limestones. The most common porosity types are non-fabric selective moldic and vuggy porosity and intercrystalline porosity. These porous zones are characterized by late-diagenetic coarse-crystalline dolomite, whereas the non-porous intervals are composed of dense mosaics of early-diagenetic dolomites. The distribution of dolomite rock textures indicates that porous zones were preserved as limestone until late in the diagenetic history, and were then subjected to late-stage dolomitization in a medium burial environment, resulting in coarse-crystalline porous dolomites. Hacialabaz dolomites have been formed as early diagenetic at the tidal-subtidal environment and as the late diagenetic at the shallow-deep burial depths.Öğe Stress state analysis and active tectonics of Çavdarhisar (Kütahya) Province, (NW Anatolia, Turkey) from Pre-Late Cenozoic to Quaternary(EGU General Assembly, 2021) Tunç, Gülen; Özden, SühaÇavdarhisar (Kütahya) province plays a very important role to understand geology and tectonics of the Western Anatolia. Active tectonics characteristics of the region give major information about the evolution of tectonics of the Çavdarhisar (Kütahya) and surrounding areas especially from Late Cenozoic to present day. In this study, kinematic analysis of observed faults in the field and focal mechanism solutions of earthquakes from this region and surroundings are used to reveal the Late Cenozoic stress states of Çavdarhisar (Kütahya). Kinematic analysis results of the faults give four different stress state (SS) regimes from Pre-Late Miocene to Quaternary. Firstly, a main strike-slip faulting (transpressional) (SS.1) has been developed under a NE-SW local compressional tectonic regime in Pre-Late Pliocene with 32°/31° (σ1) and 124°/10° (σ3) trends and Rm ratio was calculated as 0.616. Secondly and consistently with first regime, a NW-SE trending extensional regime (SS.2) produce a local normal faulting presents a minimum stress with 329°/6° (σ3) trend as in horizontal plane in the same period. Then, a NW-SE trending compressional tectonic regime has been efficient in Late Pliocene. This tectonic regime (SS.3) developed a strike-slip faulting (transtensional) has showing by a maximum stress axis by 325°/19° (σ1) and 60°/8° (σ3) trends and Rm ratio was calculated as 0.499. Finally, in the study area, a tectonic regime change has occurred during Quaternary time interval. This regime (SS.4) is oriented a minimum stress state trend as in horizontal plane by a NE-SW directed extensional regime produce a normal faulting in present day and shows a minimum stress with 58°/17° (σ3) trend and Rm ratio is calculated as 0.549. Focal mechanism solutions of the earthquakes that hit the study area show NNE–SSW extension direction which is consistent with present day extensional regime of Çavdarhisar (Kütahya) and surrounding areas. The reason for the regionally effective NNE–SSW trending extensional regime in western and south western Anatolia is related with complex subduction processes between African and Anatolian plates.
