Mühendislik-Mimarlık Fakültesi, Jeoloji Mühendisliği Bölümü, Bildiri Metinleri Koleksiyonu
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Güncel Gönderiler
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 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.Öğe Textural evidence for mixed magmas and crustal assimilants in the genesis of extension-related Middle-Late Miocene Hisartepe Andesites in Söke (Aydın) Region, Western Anatolia, Turkey(Batman Üniversitesi, 2018) Kalkan, Özcan Ali; Çoban, Hakan; Polat, Süleyman; Dedeoğlu Yıldız, Deniz; Kumral, Mustafa; Kadıoğlu, Yusuf Kağan; Sağdıç, CemÖğe Kıra Dağı (Batman) Bazaltları’nın petrojenezine jeokimyasal bir bakış(Van Yüzüncü Yıl Üniversitesi, 2015) Kalkan, Özcan AliÖğe 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 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 Elazığ‘daki maden sahalarının sulara etkileri(TMMOB Jeoloji Mühendisleri Odası, 2019) Baran, Hacı Alim; Nalbantçılar, Mahmut Tahir; Köktan, NidaÖğe Batman şehir merkezinin toprak kirliliğinin araştırılması(TMMOB Jeoloji Mühendisleri Odası, 2021) Baran, Hacı Alim; Gümüş Kıral, NurcanÖğe 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 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 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 Esentepe Gültepe Batman çukurunun oluşum mekanizması(Batman Üniversitesi, 2012) Dinç, Salih; Eren, Yaşar; Nalbantçılar, Mahmut Tahir; Beyaz, Turgay; Ünal, Murat; Arslan, Şükrü; Polat, SüleymanÖğe Geochemical features of rare earth elements in the dolostones of the Hacıalabaz formation (late jurassic) from Hadım (Konya, Turkey) area(WMESS, 2017) Dinç, Salih; Özkan, Ali Müjdat; Karadağ, Mehmet Muzaffer; Küpeli, ŞuayıpPurpose of review is to commentate the source of REE and anomalies (e.g. Ce, Eu, and Y) of the Hacialabaz Formation dolomites. The Taurus Mountains represent the Alpine-Himalayan system in the Eastern Mediterranean, which formed a stable northern margin of Gondwanaland during the Paleozoic to Late Mesozoic. The Hacialabaz Formation dolomites were displayed to be mostly disordered and lesser ordered and nonstoichiometric and Ca-rich, and they are mostly locally developed in the lower sections of the Hacialabaz Formation. The Post Archaean average Australian Sedimentary rocks [PAAS]-normalized REE+Y values of the dolomite sample groups show patterns characterized a clear depletion in all REE species. The total REE content of the dolomite displays a strong positive correlation with SiO2, Al2O3, Fe2O3, Na2O, K2O, TiO2 and P2O5 and negative correlation with MgO and CaO. The total REE content of the dolomite displays a strong positive correlation with Ba and Rb and weakly positive correlation with Sr and Zr. The total rare earth element contents are positively correlated to the Sr and ?18O contents in the Hacialabaz Formation dolomites is denoted to a decrease in the salinity of dolomitizing fluids. Also between Sr and ?18O content with total rare earth element of the Hacialabaz Formation dolomites are observed a weakly positive relationship (Fig. 53,59). On account of, reduced rare earth element, Sr and ?18O contents in our samples is expressed a decrease in the salinity of dolomitizing fluids, i.e. the meteoric freshwater mixing to the basinal brines. Hacialabaz Formation dolomites were formed as early diagenetic at the low temperatures in the mixing-zone near-surface burial environments, and as late diagenetic from basinal brines at the higher temperatures in the shallow to medium burial environment.Öğe Örenağıl (Batman, GD- Anadolu) barıt cevherleşmesinin petrokimyası(Ankara Üniversitesi, 2016) Dinç, Salih; Baran, Hacı Alim; Kumral, MustafaÖrenağıl barit cevherleşmesi, ülkemizde önemli maden yataklarına ev sahipliği yapmasıyla tanınan Bitlis metamorfiklerinin Orta Devoniyen yağlı Meydan Formasyonu içerisinde oluşmuştur. Cevherleşme genellikle yan kayaçları olan kireçtaşlarıyla uyumlu olarak görünen demirli minerallerin baskın olduğu bir zon içerisinde bulunur. Cevher içeren bu demirli zon bazen de Maden Formasyonunun diğer üyeleri olan metamorfik birimleri kesen fay zonları, kırık ve çatlaklarda gözlenmektedir. KireçtaĢları içerisinde gözlenen demirli zonun kalınlığı birkaç metreyi bulabilmekte iken metamorfik birimlerin içerisindeki zonun kalınlığı 1 santimetreden 30 santimetreye kadar değiĢmektedir. Ġnceleme alanında barit cevherleĢmesine eĢlik eden sülfürlü minerallerin varlığına da rastlanmıĢtır. Bu mineraller genellikle demirli, baritli zonda santimetre ölçeğine varan boyutlarda, nadiren de yan kayaçları kesen kırık, fay gibi süreksizlik zonlarında saçınımlı olarak gözlenmektedir. Mineral parajenezinin barit, pirit, kalkopirirt, sfalerit, bornit, ±kalkozin, ±kovellin, ±malakit, ±azurit, ±manyetit, götit, hematit ve limonitten oluĢtuğu belirlenmiĢtir. CevherleĢmenin baryum konsantrasyon oranı % 25 den 61‟e kadar olmasına karĢın yan kayaçlarda önemli bir baryum konsantrasyonuna rastlanmamıĢtır.Öğe Hadim Konya Türkiye çevresindeki Hacıalabaz formasyonu dolomitlerinin (üst jurasik) petrografik ve jeokimyasal özellikleri(Selçuk Üniversitesi, 2010) Dinç, Salih; Özkan, Ali Müjdat
