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Articles 1 - 30 of 39
Full-Text Articles in Physical Sciences and Mathematics
Characteristic Mollusc, Larger Foraminifera Findings And Environmental Interpretations Of The Middle Eocene Kocaçay Formation Deposits Around Ayvalıca (Bayat, Çorum), Müjde Gürsoy, Muhittin Görmüş
Characteristic Mollusc, Larger Foraminifera Findings And Environmental Interpretations Of The Middle Eocene Kocaçay Formation Deposits Around Ayvalıca (Bayat, Çorum), Müjde Gürsoy, Muhittin Görmüş
Bulletin of the Mineral Research and Exploration
Although the Çankırı-Çorum Basin was studied for various purposes such as geological, stratigraphical, tectonic, coal and oil exploration, studies on fossils are limited. Especially there have not been detailed studies on molluscs and larger foraminifera. The research area is located at the vicinity of Ayvalıca (north of Çankırı-Çorum basin). The Middle Eocene Kocaçay formation, which outcrops in the Çankırı-Çorum Basin, is widespread around Bayat Çorum in the north of the basin, Sulakyurt Kırıkkale in the west, Çiçekdağı Kırşehir in the south and Sungurlu Çorum in the middle of the basin. The formation is composed of conglomerate, carbonated sandstone, limestone and …
Physical Modeling The Formation Of Roof Collapse Zones In Vorkuta Coal Mines, Boris Yu Zuev, Ruslan S. Istomin, Stanislav V. Kovshov, Vyacheslav M. Kitsis
Physical Modeling The Formation Of Roof Collapse Zones In Vorkuta Coal Mines, Boris Yu Zuev, Ruslan S. Istomin, Stanislav V. Kovshov, Vyacheslav M. Kitsis
Bulletin of the Mineral Research and Exploration
Collapse of the roof during mining is a constant threat to the lives of miners and equipment performance. To predict it, different numerical and physical approaches are used. Physical modeling of the massif region from -951 m to -841 m using equivalent materials were undertaken in this investigation. Various options for mining the Vorkuta coal deposit were considered: mining only the upper industrial seam, mining the lower coal seam as a protective layer to the upper one, and assessing the impact on the collapse zone of the complex structure of the upper coal seam roof while maintaining an upward order …
Morphological Parameters Causing Landslides: A Case Study Of Elevation, Seda Çellek
Morphological Parameters Causing Landslides: A Case Study Of Elevation, Seda Çellek
Bulletin of the Mineral Research and Exploration
The history of landslide susceptibility maps goes back about 50 years. Hazard and risk maps later followed these maps. Inventory maps provide the source of all these. There are different parameters selected specially for each field in the literature as well as parameters selected because they are easy to produce and obtain data. This study tried to research the effect of elevation on landslides by reviewing the literature in detail. The used class ranges and elevation values were reviewed and applied to map sections selected from Turkey. By analyzing the results, the goal was to determine at which elevation ranges …
Emplacement Conditions Of Magma(S) Forming Jurassic Plutonic Rocks In Gümüşhane (Eastern Pontides, Turkey), Emre Aydinçakir, Ramazan Gündüz, Cem Yücel
Emplacement Conditions Of Magma(S) Forming Jurassic Plutonic Rocks In Gümüşhane (Eastern Pontides, Turkey), Emre Aydinçakir, Ramazan Gündüz, Cem Yücel
Bulletin of the Mineral Research and Exploration
In this study, the petrography, mineral chemistry and crystallization conditions were reported for the Alemdar and Işıkdere plutons located in limited areas in the south of the Eastern Pontides. These plutons, which trend mostly in NE-SW directions, were emplaced by cutting the Early- Middle Carboniferous-aged Gümüşhane Granitoid and Early-Middle Jurassic Şenköy formation. Petrographically, the studied plutons are compositionally fine to medium grained quartz-diorite, quartz monzodiorite and tonalite. The rocks in the plutons have granular, poikilitic, monzonitic, graphic and rare porphyritic textures with consist of plagioclase, (An05-92), hornblende (Mg# = 0.52- 0.81), biotite (Mg# = 0.32-0.67), orthoclase, quartz and Fe-Ti oxide. …
Determination Of Structural Characteristics Of Tuzgölü Fault Zone Using Gravity And Magnetic Methods, Central Anatolia, Bahar Di̇nçer, Veysel Işik
Determination Of Structural Characteristics Of Tuzgölü Fault Zone Using Gravity And Magnetic Methods, Central Anatolia, Bahar Di̇nçer, Veysel Işik
Bulletin of the Mineral Research and Exploration
The anomaly maps and amplitude and wavelength changes of the anomalies obtained from gravity and magnetic methods can provide to identify fault traces in the underground. The Tuzgölü Fault Zone (TFZ), the NW-SE striking active fault zone in central Anatolia, includes fault strands that cut the basement and basin deposits. Our magnetic and gravity analysis suggests that Tuzgölü Basin and its surroundings are characterized by distinct depression and ridge areas. Gravity anomaly data show the presence of faults at depths of sea level (0 m), -1000 m, -2000 m, -3000 m, and -4000 m. These faults are mostly normal and …
Mineralogical Characteristics Of Metamorphic Massif Units Outcropping In Göksun, Afşin And Ekinözü (Kahramanmaraş) Region, Deniz Hozatlioğlu, Ömer Bozkaya, Hüseyin Yalçin, Hüseyin Yilmaz
Mineralogical Characteristics Of Metamorphic Massif Units Outcropping In Göksun, Afşin And Ekinözü (Kahramanmaraş) Region, Deniz Hozatlioğlu, Ömer Bozkaya, Hüseyin Yalçin, Hüseyin Yilmaz
Bulletin of the Mineral Research and Exploration
This study aims to investigate and correlate the mineralogical-petrographic characteristics of Metamorphites in Göksun, Afşin and Ekinözü in the Southeast Anatolian Metamorphic Massifs. In this context, the optical microscopy and XRD investigations were performed on several samples. Göksun Metamorphites are constituted by phyllite, calcphyllite, marble and they contain mainly calcite, dolomite, quartz, feldspar, phyllosilicate. KI and b-cell dimension data reflect high anchizone-epizone and medium pressure conditions. Afşin Metamorphites are represented by phyllite, calcphyllite, calcschist, micaschist, amphiboleschist, marble. Phyllosilicates have consisted of illite/mica, IIb chlorite, mixed-layers, smectite. KI and b-cell dimension data correspond to the subgreenschist-greenschist facies conditions. Ekinözü Metamorphites are …
Rare Earth Element Contents, Geochemistry Of Soil Samples Between Burdur And Isparta Region And Assessment Of Their Origin, Ebru Tat, Mustafa Gürhan Yalçin
Rare Earth Element Contents, Geochemistry Of Soil Samples Between Burdur And Isparta Region And Assessment Of Their Origin, Ebru Tat, Mustafa Gürhan Yalçin
Bulletin of the Mineral Research and Exploration
This study was carried out in 5 locations between Burdur and Isparta in the inner southern part of Isparta Bend. The study aims to determine the rare earth element (REE) concentrations in the soil samples collected from the field and to interpret the origin of the high concentrations detected. In this context, a total of 104 samples were collected from Canakli Village (19 samples), Cobanisa Village (34 samples), Kuyubasi Village (17 samples), Kuzca Village (17 samples), and Yilanli Village (17 samples) in the study field. The average ∑REE (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, …
Petrographic-Mineralogical Examination And Diagenetic History Of The Paleogene Evaporites In Bulanık (Muş), Turkey, Pelin Güngör Yeşi̇lova
Petrographic-Mineralogical Examination And Diagenetic History Of The Paleogene Evaporites In Bulanık (Muş), Turkey, Pelin Güngör Yeşi̇lova
Bulletin of the Mineral Research and Exploration
Oligocene aged evaporite formations are observed in shallow sea-sabkha environments that develop in highly restricted conditions from sea in northeastern of the Muş basin. Evaporites are observed as alternated and intercalated with clastics and carbonates that developed under the control of factors such as climate, tectonism, volcanism and diagenesis. Evaporites consist of primary and secondary gypsum and minor anhydrite. In petrographic and minerologic examinations, secondary gypsum textures such as alabastrin, porphyroblastic and satin spar with anhydrite relicts, late diagenetic calcite, bitumen and bioturbation traces were detected. In SEM-EDS studies; celestine crstals, autogenic and detritic clay and quartz grains and euhedral …
Estimation Of The Compaction Characteristics Of Soils Using The Static Compaction Method, Kamil Kayabali, Ramin Asadi̇, Mustafa Fener, Orhan Di̇kmen, Farhad Habi̇bzadeh, Özgür Aktürk
Estimation Of The Compaction Characteristics Of Soils Using The Static Compaction Method, Kamil Kayabali, Ramin Asadi̇, Mustafa Fener, Orhan Di̇kmen, Farhad Habi̇bzadeh, Özgür Aktürk
Bulletin of the Mineral Research and Exploration
Ground improvement using mechanical stabilization is commonly applied by performing the standard Proctor compaction test, which requires a significant quantity of soil, usually obtained from open pits. A static compaction test is an alternative laboratory compaction test. Although researchers have shown that the results of miniature size static compaction tests are comparable with that of standard Proctor tests in terms of the maximum dry density and the optimum water content, no attempt has been made to compare the two fundamental properties of the compacted soil: undrained shear strength and hydraulic conductivity. The scope of this investigation was to estimate the …
Geochemical Characteristics Of The Eocene Karataş Volcanics (Northeast Sivas, Turkey) In The İzmir-Ankara-Erzincan Suture Zone, Oktay Canbaz, Ahmet Gökce, Taner Eki̇ci̇, Hüseyin Yilmaz
Geochemical Characteristics Of The Eocene Karataş Volcanics (Northeast Sivas, Turkey) In The İzmir-Ankara-Erzincan Suture Zone, Oktay Canbaz, Ahmet Gökce, Taner Eki̇ci̇, Hüseyin Yilmaz
Bulletin of the Mineral Research and Exploration
Karataş volcanics, is the product of Eocene volcanics crop out in the form of two belts along the northern and southern boundaries of the İzmir-Ankara-Erzincan Suture Zone. According to geochemical data, these volcanics have alkaline basic-intermediate character and consist of basaltic trachyandesite, trachyandesite and trachyte. This volcanic activity has been controlled by fractional crystallization and crustal contamination from basaltic trachyandesite to trachyte. Orientation of the samples towards amphibole area on the Rb/Sr - Ba/Rb ratio diagrams, dispersion of the Zr/Ba ratios (0.08 - 0.33) in the lithospheric mantle range, increase in the Ba/Rb ratio, decreases in the MgO, Ni and …
Neogene Stratigraphy And Regional Correlation Of The Çeşme Peninsula, Western Anatolia, Turkey, Fikret Göktaş
Neogene Stratigraphy And Regional Correlation Of The Çeşme Peninsula, Western Anatolia, Turkey, Fikret Göktaş
Bulletin of the Mineral Research and Exploration
This study aims to investigate the stratigraphy and regional correlation of terrestrial Neogene sediments and volcanics in the Çeşme Peninsula. Neogene deposition is represented by two main sedimentary successions separated from each other by an angular unconformity. The lacustrine dominated Çeşme group characterized the Lower-Middle Miocene deposition is formed by Şifne, Ovacık and Çiftlik formations. The felsic pyroclastics (Alaçatı pyroclastics), which are the early products of the Armağandağı volcanism, laterally associated with the Çeşme group deposition, deposited on the Şifne formation and interrupted the lacustrine sedimentation. The lacustrine sedimentation continued uninterruptedly with Ovacık and Çiftlik formations after the deposition of …
Estimation Of Co-Seismic Land Deformation Due To Mw 7.3 2017 Earthquake In Iran (12 November 2017) Using Sentinel-1 Dinsar, Fatma Canaslan Çomut, Şule Gürboğa, Tayeb Smail
Estimation Of Co-Seismic Land Deformation Due To Mw 7.3 2017 Earthquake In Iran (12 November 2017) Using Sentinel-1 Dinsar, Fatma Canaslan Çomut, Şule Gürboğa, Tayeb Smail
Bulletin of the Mineral Research and Exploration
A strong shaking with Mw 7.3 occurred on 12th November 2017 around the Sarpol-e Zahab town in the border area between Iran and Iraq. It has a number of foreshocks and aftershocks increasing the total deformation, cumulatively. In this study, we have investigated how earth surface deformed after such a strong earthquake and its scatters. Because, the deformation inspection are indispensable for the safety of citizens and infrastructures. The best way for monitoring of surface deformation in such a big event is the SAR technique. This system can work effectively during night and day under different weather conditions. The Interferometric …
Characterization Of Iron Ore And Scale For Synthesizing Vinyl Paint, Mohammed Tayeb Abedghars, Mokhtar Ghers, Salah Bouhouche, Belgacem Bezzina
Characterization Of Iron Ore And Scale For Synthesizing Vinyl Paint, Mohammed Tayeb Abedghars, Mokhtar Ghers, Salah Bouhouche, Belgacem Bezzina
Bulletin of the Mineral Research and Exploration
Two materials are studied to synthesize a vinyl painting. Iron ore is an iron pigment with an oolithic structure containing phosphorus. The second material is a steel by-product. The raw materials proprieties were studied by chemical, particle size, thermal, XRD and spectrophotometric analysis. The iron contents of the pigment and scale are respectively 53.18% and 73.83%. The grindability of scale is better than that of the pigment. The particle volume distribution is 0.7 to 32 µm for scale and 0.6 to 40 µm for pigment. TGA and DTA tests show that the pigment loses weight with phase dissolution by consuming …
Utilization Of Pumice Of Burdur Region And Zeolite Of Bigadiç-Balıkesir Region As Fine Aggregate In Construction Materials, Özge Beycan Tatanoğlu, Niyazi Uğur Koçkal
Utilization Of Pumice Of Burdur Region And Zeolite Of Bigadiç-Balıkesir Region As Fine Aggregate In Construction Materials, Özge Beycan Tatanoğlu, Niyazi Uğur Koçkal
Bulletin of the Mineral Research and Exploration
Volcanic originated pumice and zeolite aggregates have low density owing to their considerable porous structure. Porosity is usually correlated with insulation properties. In order to examine the effects of this lightweight aggregates on dead load of structure and insulation properties of standard construction materials, samples were produced by using pumice and zeolite at varying percentages by volume and control samples were manufactured with crushed sand. The samples were exposed to normal (standard) curing, hot water curing and steam curing to observe the effect of different curing regimes on their behavior. Bulk density and thermal conductivity tests were carried out on …
The Electric Power Production Targeted Unconventional Geothermal Systems (Ugs), Some Conceptual Designs And Their Thermodynamics Classification, Aydın Çi̇çek
Bulletin of the Mineral Research and Exploration
The geothermal energy is a renewable and relatively clean energy resource. The amount of geothermal energy stored just in the upper crust of the earth is large enough to meet the world’s energy needs for thousands of years. Unfortunately, only a small portion of this potential can be utilized today by the conventional methods. The rest corresponds to the hot, fluid-poor areas which cannot be utilized by the current technology. The first concrete steps towards the utilization of such high potential areas emerged in the late 1960s and early 1970s. These studies have gradually continued in the following years, and …
Early Miocene Seed Like Plant Remain Fossils And Facies Associations From The Nallıhan District (Nw Turkey), Muhittin Görmüş, Yusuf Kağan Kadioğlu, Baki Erdoğan Varol, Muhammed Sami Us
Early Miocene Seed Like Plant Remain Fossils And Facies Associations From The Nallıhan District (Nw Turkey), Muhittin Görmüş, Yusuf Kağan Kadioğlu, Baki Erdoğan Varol, Muhammed Sami Us
Bulletin of the Mineral Research and Exploration
Seed like fossils recognized by their distinctive orbicular in shape are seen in the early Miocene of the Nallıhan area (NW Türkiye). We examined more than one hundred specimens and facies associations for interpreting of fossil morphology and its paleoenvironment. The fossils as dark crystallized dots on the bedding surface of clayey limestones are characterized by a thick edged lenticular shape with a smooth one side and concave another side with circular nucleus. Their internal structures have circular a few whorlings, too often radial calcitic lamellae on the upper side and a few circular coiling at the bottom side. SEM, …
An Overview Of The Current Seismicity Of The Sultandağı Fault Zone (Afyonkarahisar-Konya, Western Anatolia), Doğan Kalafat, Yavuz Güneş, Mehmet Kara, Kıvanç Kekovali
An Overview Of The Current Seismicity Of The Sultandağı Fault Zone (Afyonkarahisar-Konya, Western Anatolia), Doğan Kalafat, Yavuz Güneş, Mehmet Kara, Kıvanç Kekovali
Bulletin of the Mineral Research and Exploration
Western Anatolia is one of the most seismically active regions in Turkey. The high seismic activity is a result of a complex tectonic deformation dominated by the N-S extensional tectonic regime in Western Anatolia. This tectonic deformation is also a result of the relative movement of the African- Arabian plates towards the north, which causes the Anatolian plate to shift 2.5 cm per year towards W-SW. One of the largest fault zones in the Western Anatolia, Sultandağı Fault Zone (SFZ) has a northwest-southeast trend. SFZ, approximately 120 km long, is an important tectonic structure, which produced three major earthquakes (Mw …
Evolution Of Slab Tearing-Related High Potassium Volcanism: Petrogenetic Data From The Emirdağ And İscehisar Volcanic Units, Selin Bi̇lgi̇ç Gençer, Sibel Tatar Erkül, Fuat Erkül
Evolution Of Slab Tearing-Related High Potassium Volcanism: Petrogenetic Data From The Emirdağ And İscehisar Volcanic Units, Selin Bi̇lgi̇ç Gençer, Sibel Tatar Erkül, Fuat Erkül
Bulletin of the Mineral Research and Exploration
Volcanism that has been active since the early Miocene along a N-S trending line from Eskişehir to Isparta displays calc-alkaline and alkaline character and is closely associated with slab tearing processes. However, the geodynamic setting of these volcanic units between Afyon and Emirdağ is still poorly known. In this study, petrological characteristics of the Emirdağ and İscehisar volcanic units have been investigated using petrography, whole-rock geochemistry and Sr-Nd isotopes. The Emirdağ and İscehisar volcanic units overlap the SeydileIgnimbrites. The Emirdağ volcanic unit is trachyandesite and the İscehisar volcanic unit is trachyte, basaltic trachyandesite and trachydacite in composition. The Emirdağ volcanic …
An Example Study On Re-Evaluation Of Historical Earthquakes: 1789 Palu (Elazığ) Earthquake, Eastern Anatolia, Turkey, Mehmet Köküm, Fatih Özçeli̇k
An Example Study On Re-Evaluation Of Historical Earthquakes: 1789 Palu (Elazığ) Earthquake, Eastern Anatolia, Turkey, Mehmet Köküm, Fatih Özçeli̇k
Bulletin of the Mineral Research and Exploration
The East Anatolian Fault (EAF) is an active left-lateral strike-slip fault extending between Karlıova (Bingöl) in the northeast and Iskenderun Bay in the southwest. The Palu, which is the subject of the study area, is located on the Palu segment of the EAF. The Palu segment starts from the northeast of Palu, and is approximately 77 km long, and reaches the Lake Hazar after passing the Baltaşı Plain. Maximum shaking intensity in the earthquake listed in historical catalogs is estimated to have been Mercalli Intensity VIII, with conflicting accounts of as few as 8.000-10.000 to as many as 50.000 people …
Precise Monitoring Of Temporal Topographic Change Detection Via Unmanned Air Vehicle, Serkan Karakiş, Umut Güneş Seferci̇k, Turhan Bi̇li̇r, Can Atalay
Precise Monitoring Of Temporal Topographic Change Detection Via Unmanned Air Vehicle, Serkan Karakiş, Umut Güneş Seferci̇k, Turhan Bi̇li̇r, Can Atalay
Bulletin of the Mineral Research and Exploration
Nowadays, fast developing space-borne and airborne remote sensing technologies became indispensable for land related engineering disciplines such as mapping, geology, environment, mining and forestry. The new technologies, provide more qualified and rapid achievable outcomes, are adopted permanently. The description of the topographic surface became easier by means of very high resolution (VHR), rapid achievable and accurate point clouds acquired by digital photogrammetry and airborne laser scanning (ALS). Optical unmanned air vehicle (UAV), one of the most actual photogrammetric techniques, is much in demand for varied purposes. UAVs provide high resolution data using the advantage of lower flight altitudes. In this …
The Relationship Of Soils Developed On Different Parent Materials In Niğde Province With Lithological Units And Determination Of Their Suitability For Usage Agricultural Purposes, Harun Torunlar, Abdurrahman Lermi̇, Emin Çi̇ftçi̇
The Relationship Of Soils Developed On Different Parent Materials In Niğde Province With Lithological Units And Determination Of Their Suitability For Usage Agricultural Purposes, Harun Torunlar, Abdurrahman Lermi̇, Emin Çi̇ftçi̇
Bulletin of the Mineral Research and Exploration
In this study, general characteristics of soils formed on different parent materials in three different regions of Niğde province, their relationship with lithological units and the extent to which they are suitable for agricultural purposes were determined. Physical and chemical analysis values of rock and soil samples were used to reveal the relationship between lithological units and soils formed in the study area and correlation analysis was applied among the parameters. Multi Criteria Decision Making method was used to determine the suitability of these soils which are formed depending on the parent materials for agricultural use. In order to determine …
Drilling And Core Data From The Gulf Of Gemlik (Se Sea Of Marmara): Holocene Fauna And Flora Assemblages, Engin Meri̇ç, Zeki Yümün, Atike Nazi̇k, Enis Kemal Sagular, M.Baki Yokeş, Yeşim Büyükmeri̇ç, Ayşegül Yildiz, Gülin Yavuzlar
Drilling And Core Data From The Gulf Of Gemlik (Se Sea Of Marmara): Holocene Fauna And Flora Assemblages, Engin Meri̇ç, Zeki Yümün, Atike Nazi̇k, Enis Kemal Sagular, M.Baki Yokeş, Yeşim Büyükmeri̇ç, Ayşegül Yildiz, Gülin Yavuzlar
Bulletin of the Mineral Research and Exploration
This study was conducted to determine fauna and flora assemblages of Holocene sequences from Gemlik Gulf (SE Marmara Sea) and to obtaine their similarities and differences between the assemblages of Gemlik and İzmit Bays. Total of 201 dark gray colored, fine to medium grained sandy clay samples were studied. In the drilled samples, 22 genera and 38 species were identified from the foraminifera characterizing the infralittoral zone. 40 genera and 58 species of foraminifera characterizing the upper circalittoral zone were identified. In addition, Black Sea originated Ammonia parasovica was found for the first time in cores taken from Gemlik Gulf. …
A Laboratory-Scale Investigation On Freezing-Thawing Behavior Of Some Natural Stone Samples Manifactured In Turkey, Gökhan Erol, Ozan Bayram
A Laboratory-Scale Investigation On Freezing-Thawing Behavior Of Some Natural Stone Samples Manifactured In Turkey, Gökhan Erol, Ozan Bayram
Bulletin of the Mineral Research and Exploration
In the study, the changes in the mechanical properties of the natural stone samples, which had been obtained from different regions of Turkey, before and after the freeze-thaw test were examined. Within the scope of the study, 17 different natural stone samples were used and, after chemical and mineralogical-petrographical properties were determined. Water absorption at atmospheric pressure, real density, porosity, and uniaxial compressive strength tests were performed before and after freezing-thawing. The freezing and thawing test has been performed using TS EN 12371 standard from -12 °C to +20 °C in 56 cycles (2 cycles = 24 hours). After the …
Geology And Formation Of Nevruztepe Fe-Cu Skarn Mineralization (Kayseri-Turkey), Deniz Ti̇ri̇nga, Bülent Ateşçi̇, Yılmaz Çeli̇k, Güvenç Demi̇rkiran, Cahit Dönmez, Aytekin Türkel, Taner Ünlü
Geology And Formation Of Nevruztepe Fe-Cu Skarn Mineralization (Kayseri-Turkey), Deniz Ti̇ri̇nga, Bülent Ateşçi̇, Yılmaz Çeli̇k, Güvenç Demi̇rkiran, Cahit Dönmez, Aytekin Türkel, Taner Ünlü
Bulletin of the Mineral Research and Exploration
The Nevruztepe iron-copper prospect is a skarn near Yeşilhisar (Kayseri). It has been overlooked as a potential producer of copper. The skarn was generated in Permian to Jurassic carbonate rocks by the Eocene Yahyalı granitic pluton. Lithologic units, including skarns, dip about 15 degrees southward. Skarns are both prograde (garnet and diopside) and retrograde (epidote); both exoskarn and endoskarn exist. Most of the magnetite is in a quartz-sulfide stage in retrograde skarn that is cut by veins and lenses containing quartz-pyrite-chalcopyrite. Granite and mineralized skarn are rare at the surface. From 2013 to 2015, 31 drill holes (totaling 6.178,5 m) …
Integration Of The Gnss Method And Borehole Camera To Model The Resulting Spherical Cavity Generated By The Main Charge Blast In Clay, Denis Težak, Nikola Kranjčić, Bojan Đurin, Mihaela Juras
Integration Of The Gnss Method And Borehole Camera To Model The Resulting Spherical Cavity Generated By The Main Charge Blast In Clay, Denis Težak, Nikola Kranjčić, Bojan Đurin, Mihaela Juras
Bulletin of the Mineral Research and Exploration
A depth camera was used to record the spherical cavity which occurred during blasting in clay soil. For this purpose, the integration of the Global Navigation Satellite System (GNSS) method was applied in addition to the depth camera and the laser, to determine the resulting spherical cavity. The expanded spherical cavity, formed after the blasting of the explosive charge in the bottom of the borehole, was measured by a depth camera-laser system. The GNSS measurement method was instrumental for obtaining the coordinates of the borehole. The Multichannel Analysis of Surface Waves (MASW) measurement method was also used during the study. …
An Approach For The Application Of Energy-Based Liquefaction Procedure Using Field Case History Data, Kamil Kayabali, Levent Selcuk, Turgay Beyaz
An Approach For The Application Of Energy-Based Liquefaction Procedure Using Field Case History Data, Kamil Kayabali, Levent Selcuk, Turgay Beyaz
Bulletin of the Mineral Research and Exploration
This paper presents an overview to the applicability of the “energy-based liquefaction approach” with regards to the new developments in the subject. The method involves comparing the strain energy for the soil liquefaction (capacity) with the strain energy imparted to the soil layer during an earthquake (demand). The performance of the method was evaluated by using a large database of SPT-based liquefaction case history. The energy-based method and the more commonly used stressbased method were compared in their capability to assess liquefaction potential under the same damaging historic earthquakes and geotechnical site conditions. In the procedure, the predictive strain energy …
Geochemical Features And Petrogenesis Of Gökçeada Volcanism, Çanakkale, Nw Turkey, Pınar Şen, Ramazan Sari, Erdal Şen, Cahit Dönmez, Serkan Özkümüş, Şahset Küçükefe
Geochemical Features And Petrogenesis Of Gökçeada Volcanism, Çanakkale, Nw Turkey, Pınar Şen, Ramazan Sari, Erdal Şen, Cahit Dönmez, Serkan Özkümüş, Şahset Küçükefe
Bulletin of the Mineral Research and Exploration
Gökçeada Island, which is situated west of Biga Peninsula, has widespread magmatism with variable ages. Lower-Middle Eocene Dağiçitepe volcanics are the oldest volcanic unit in the island and consist of lavas, tuff-tuffites. They are influenced by alteration and almost all minerals, except quartz, are transformed into other minerals. Lower Oligocene Gökçeada andesitic lava/ domes exhibiting hypocrystalline porphyric texture, are the products of NE-SW trending domes/ cryptodomes. The phenocrysts assemblages consist of plagioclase, hornblende, clinopyroxene ± biotite and quartz. Middle Miocene Eşelek volcanics, which occur as lavas and pyroclastic rocks, exhibit hypocrystalline porphyric and intersertal textures. They are composed of plagioclase, …
Investigation On Geoarchaeological Structure Of Ancient Ports In The Lycia Region, Su Güneş Kabakli, M. Erkan Karaman
Investigation On Geoarchaeological Structure Of Ancient Ports In The Lycia Region, Su Güneş Kabakli, M. Erkan Karaman
Bulletin of the Mineral Research and Exploration
The effects of geological events that occurred in ancient times, on ancient cities are undeniably great, so geoarchaeology has become an important mutidisciplinary science. Using geological methods in archaeological researchs offers a much more comprehensive understanding for history. Today, the methods of remote sensing and geographical information systems have facilitated archaeological researches to a greater extent than before. In this study, Phaselis, Andriake and Patara ancient cities were investigated. In the research, help was obtained from satellite images as a method. By comparing the ancient coast line and the modern coast line, it is tried to be understood to what …
The Internal Structure Of Beypazarı Blind Thrust Zone Around Çayırhan, Anıl Ardahanlioğlu, Gürol Seyi̇toğlu, Korhan Esat
The Internal Structure Of Beypazarı Blind Thrust Zone Around Çayırhan, Anıl Ardahanlioğlu, Gürol Seyi̇toğlu, Korhan Esat
Bulletin of the Mineral Research and Exploration
The Beypazarı Blind Thrust Zone, which is surrounded by the North Anatolian, the Eskişehir, and the Kırıkkale-Erbaa fault zones, is a recently defined neotectonic structure developed in the NW central Anatolia together with the Eldivan-Elmadağ and the Abdüsselam Pinched Crustal Wedges. In this study, the internal structure of the Beypazarı Blind Thrust Zone has been examined in detail around Çayırhan region. It has been defined that it consists of the Karaköy, Sekli, Nalçabayırı, Uzunbayır blind thrusts, Davutoğlan Back Thrust, and Beypazarı Blind Thrust I-II from North to south, respectively with help of the fault-propagation folds in the study area. The …
Oligocene Molasse Sedimentation In The Central Taurides: Records Of The Onset Of Extensional Tectonic Regime, Ayhan Ilgar, Tolga Esi̇rtgen, Banu Türkmen-Bozkurt, Serap Demi̇rkaya
Oligocene Molasse Sedimentation In The Central Taurides: Records Of The Onset Of Extensional Tectonic Regime, Ayhan Ilgar, Tolga Esi̇rtgen, Banu Türkmen-Bozkurt, Serap Demi̇rkaya
Bulletin of the Mineral Research and Exploration
The lacustrine units have been deposited in the Ermenek, Bucakkışla, Korucuk and Çamlıyayla basins in the Central Taurides since early Oligocene. In this study, structural features and stratigraphical properties of Oligocene basins have been described in detail and the lacustrine units have been dated. Regional geological interpretations have been made by using tectono-stratigraphic and age data of the basins. Lacustrine Oligocene sedimentation in these basins, which were opened on the tectonic units of Taurides due to normal faults, constitute the first records of the sedimentation occurring under the extensional tectonic regime after the orogeny of the Central Taurides. All the …