Physical Sciences and Mathematics Commons^™

Coulomb Stress Changes And Magnitude-Frequency Distribution For Lake Van Region, Hamdi Alkan, Erdem Bayrak

Bulletin of the Mineral Research and Exploration

The tectonic structure of Türkiye is under the influence of Arabian, Eurasian, African, and Anatolian plates. Lake Van region, located in eastern Türkiye, has been exposed to many devastating earthquakes in historical and instrumental periods. In this paper, using regional earthquakes, the tectonic stress variation of Lake Van region was investigated using the Coulomb stress change and the b-value distribution. 83 earthquakes that occurred between 2000 and 2020 are used to calculate the Coulomb stress change, while 17815 earthquakes that occurred between 1903 and 2021 are used to calculate the b-value distribution. Coulomb stress change gives an idea about the …

Extraction Of Rubidium From Malatya - Kuluncak Area Complex Ore, Ayşe Erdem, Hüseyin Eren Obuz, Haydar Güneş, Şölen Di̇ktepe, Buse Özen İli̇k, Çiğdem Kara, Hasan Akçay, Akan Gülmez, Zümrüt Alkan

Bulletin of the Mineral Research and Exploration

In this study, studies were carried out to take rubidium (Rb), which is in a complex form of Na +K feldspar, pyroxene, and alumina silicate into solution in an environmentally sensitive manner with high recovery. Malatya - Kuluncak complex ore was used in this study. In the first stage of the study, the roasting method was tried to obtain rubidium chloride (RbCl) or rubidium sulphate (Rb2SO4) structures, which are the water-soluble forms of rubidium in the sodium-potassium feldspar structure. Roasting was carried out using different additives and calcium chloride was identified as the most suitable additive material for this ore …

Interpretation Of Satellite Gravity Anomalies With Pseudo-Depth Slicing Method Filter In Türkiye, İlkin Özsöz, Ceyhan Ertan Toker

Bulletin of the Mineral Research and Exploration

In this study, discontinuities and major tectonic boundaries are interpreted in and around Türkiye by Bouguer gravity anomaly. The World Gravity Map 2012 is used for the interpretation of major tectonic features in the Anatolia Region. Radial average power spectrum (RAPS) and band-pass filter are used for long and short wavelength separation. For the whole study area, four depth segments are detected. Moreover, the radial average depths of these depth segments are 54.9 km, 32.2 km, 21.9 km and 8.0 km. In order to conduct better interpretation, the study area was divided into three subareas from the west to the …

Modeling Of The Complex Hydrocarbon Traps By The Shot Domain Acoustic Finite Difference Method And Data-Processing, Şerife Boğazkesen, Hakan Karsli

Bulletin of the Mineral Research and Exploration

Numerical modeling studies have a widespread application in exploration seismology in order to understand the seismic reflection responses of hydrocarbon traps formed in relation to tectonic structure, lithological changes and unconformities in complex geological environments and to develop effective data processing strategies. In this study, the seismic modeling of two important hydrocarbon trap models (Granite Wash and Normal Fault Trap) was performed by the Finite Difference Method (FDM), which provides the solution of the acoustic wave equation. Seismic data models were carried out in the pre-stack shot environment, and the obtained shot data were passed through appropriate data-processing stages to …

Separation Efficiency Of Different Methods In Treatment Of A Low-Grade Iron Ore, Özgür Özcan

Bulletin of the Mineral Research and Exploration

In the present study, characterization and beneficiation tests were performed on an iron ore sample for the evaluation of separation efficiency (SE) of different methods. Results showed that the decrease in feed size fraction increases the SE irrespective of to beneficiation method. It was determined from the liberation analyses that the increase in SE values at finer size fractions is related with higher liberation. Calculated SE values revealed that operational parameters significantly affect the SE of all methods and the net forces acting on particles play an important role on SE of different size fractions. Mean SE of different size …

Mud Systems Applied To Problematic Formations In Core Drilling Rigs, Bülent Toka

Bulletin of the Mineral Research and Exploration

The two most important features of drilling rigs based on the core drilling principles are the drill set rotating at high speeds and the very precise spacing between the pipe and the well wall. Formation pieces that swell, flow into the well, spill or collapse during the drilling of problematic formations mix into the mud or narrow the annulus and cause well problems by restraining the rotation of the drill string and circulation. The spilled formation pieces cause an excessive solid material increase in the mud structure and due to the effect of centrifugal force, the solids adhere to the …

Sedimentology And Miocene-Pliocene Depositional Evolution Of The Stream-Dominated Alluvial Fan Deposits At Circum-Sultandağları Region, Ayhan Ilgar, Ali Ergen, Alper Bozkurt, Ercan Tuncay

Bulletin of the Mineral Research and Exploration

Yalvaç and Ilgın basins surrounding Sultandağları were opened due to the orogenic collapse in the early Miocene. The NW-SE trending Çakırçal and Akşehir fault zones, forming boundaries with these basins, caused both the opening of the basins and uplifting of Sultandağları. During the Miocene-Pliocene period, the alluvial fans fed from Sultandağları developed on the basin margins, while the lacustrine carbonate and clastic depositions formed in the basin’s interior. The alluvial fan deposits are laterally and vertically transitional with lacustrine sediments and alternate several times in the sequence. The alluvial fans, widespread in the region, consist of debris flow, hyperconsantrated stream …

A Comparison Of Ion-Exchange Resins And Activated Carbon In Recovering Gold From Cyanide Leach Solutions With Low Levels Of Copper, Deus Albert Msumange, Ersin Yener Yazici, Oktay Celep, Hacı Deveci̇

Bulletin of the Mineral Research and Exploration

This study was conducted to determine the effectiveness of three different adsorbents for the adsorption of gold from a real cyanide leach liquor. An activated carbon (NORIT GAC 1240), strong base (Purogold A194), and weak base (Purogold S992) resins were tested as the adsorbents. The pregnant leach solution (PLS) was derived from cyanide leaching (1.5 g/L NaCN, 25% w/w solids ratio, 1.5 L/min air flow rate, pH 10.5 – 11, 24 h) of the roasted copper-rich refractory gold ore pretreated with H2SO4. Gold and copper concentrations in the PLS were analysed to be 26.1 mg/L Au and 62.4 mg/L Cu, …

Efficiency Of Singularity And Pca Mapping Of Mineralization-Related Geochemical Anomalies: A Comparative Study Using Bleg And <180Μm Stream Sediment Geochemical Data, Fatma Nuran Sönmez, Simay Koçkar, Hüseyin Yilmaz

Bulletin of the Mineral Research and Exploration

In gold (Au) exploration, the analysis of both bulk leach extractable gold (BLEG) and acid-extractable Au in the <180μm stream sediment fraction are the two most common approaches. The Eskişehir- Sivrihisar region in Western Türkiye hosts several orogenic type mineral deposits. The purpose of this study is to delineate geochemical anomalies of ore-related elements and track their dispersion, which may lead to discovery of unknown ore deposits. This research also compares the capability of conventional statistical and principal component analysis (PCA), with concentration area (C-A) and number-size/concentration (N-S/C) fractal methods as well as singularity index method to differentiate anomalous and background Au distributions. Known Au mineralization in the region of interest is strongly reflected in stream sediment BLEG Au patterns, which have robust singularity indices with C-A and N-S multifractal modeling and PCA. A hundred % of the Au deposits were detected using either BLEG Au and Ag singularity index mapping with C-A fractal analysis whereas the factor analysis of which revealed 85% efficiency. Several strong Au-Ag anomalies defined by the singularity index and factor analysis in this study requires further follow up for the discovery of new deposits.

A Graph Method For Interpretation Of Magnetic Anomalies Over 2d Dikes And Vertical Faults, İbrahim Kara, Oya Tarhan Bal, Anisya B.Tekkeli̇

Bulletin of the Mineral Research and Exploration

Simple geometric assumptions for dikes and faults are often used for interpreting the parameters of these structures from magnetic anomalies. The magnetic anomaly of a 2D dike or a vertical fault consists of two components; one with even and the other with odd symmetries. The function resulting from the ratio of the even and odd components is independent from the amplitude coefficient. The abscissa of the half-maximum of the even component and the maximum of the odd component of a dike or a vertical fault is related to its depth and its half-width. Incorporating this relation into the corresponding equations …

A New Paradigm For The Future Of Archaeometallurgy In Anatolia: Review Of Thai Archaeology Monograph Series (Tam), Gonca Dardeni̇z

Bulletin of the Mineral Research and Exploration

This article reviews the Ban Chiang, Northeast Thailand, Volumes 2A, 2B, and 2C edited by Joyce C. White and Elizabeth G. Hamilton with the aim of bringing a new perspective to the understanding of archaeometallurgy in Anatolia. Regardless of specific subject focus such as geology, geomorphology, archaeology, or anthropology, any scholar interested in the field of archaeometallurgy will find a comparanda of their research in the Thai archaeology monograph volumes. White and Hamilton suggest a new paradigm favoring diversity and an anthropological technology-driven model for archaeometallurgical research, which I believe presents an excellent case to change and revise the presumptions …

A Walkaway Vertical Seismic Profiling Modeling And Imaging Study And Combining Its Results With Migrated Surface Seismic Images, Cemal Erdemi̇r

Bulletin of the Mineral Research and Exploration

This paper presents and analyzes results from a Finite Difference Modeling (FDM), processing, and imaging study of a Walkaway Vertical Seismic Profiling (WVSP) survey, and discusses how the images from WVSP enhance those from the surface seismic data. It is shown that the results from the WVSP integrate well with the image from the surface seismic performed in the same line. For the study, a seismic model with vertically and horizontally varying velocities was built and a WVSP data set was generated. The surface seismic had difficulty showing clear images from the layers with steep dips and near vertical displacements …

Investigation Of Dissolution Behavior Of Scandium And Lithium From Red Mud, Hüseyin Baştürkcü

Bulletin of the Mineral Research and Exploration

In this study, scandium and lithium extractions were investigated using the atmospheric pressure agitation leaching method at acidic medium. The leaching tests were carried out at two stages. To remove the ionic impurities such as Na and Al first stage leaching was performed at relatively higher pH. Following solid-liquid separation of leach cake of the first stage leaching, it was subjected to the second stage leaching. The second stage leaching resulted in 95.1% Sc and 94.7% Li extractions. The overall Sc and Li recoveries were determined as 82.4% and 86.5%, respectively. Regarding the kinetic studies, it was understood that scandium …

Geology Of The Kurucaşile - Cide Region, Nw Türkiye, Okan Tüysüz

Bulletin of the Mineral Research and Exploration

The lowest unit of the Cide-Kurucaşile region is the Carboniferous coal-bearing terrestrial sediments. Permian aged terrestrial Çakraz Formation and the Triassic lacustrine Çakrazboz Formation unconformably overlie the Palaeozoic sequence. Dogger-aged Himmetpaşa Formation represents a short-period marine invasion. The transgression started in the Kimmerician has led to the development of a carbonate platform, which has risen and demised after the Berriasian. A second carbonate platform, much more limited than the previous one, developed in the Late Barremian, and then the whole region deepened. The Cenomanian is a period of regional uplift and erosion. The first effective volcanic activity in the region …

Relationship Of Ore Properties And Alteration Of The Büyük Kuluncak (Malatya) Nb - U - Nte - Zr - Li Deposit, Okan Pulat, Mustafa Karakaş, Mehmet Ali Yasti

Bulletin of the Mineral Research and Exploration

Rare Earth Elements (REE) + Niobium (Nb) + Uranium (U) + Zircon (Zr) + Lithium (Li) formations are investigated which are related with alkaline Upper Cretaceous - Lower Paleocene Kuluncak Syenitoid that settled by cutting the Kuluncak ophiolite in the north of Kuluncak (Malatya) town. The alkaline magma-related Büyük Kuluncak REE - Nb - U deposit, which is enriched with regard to rare metals (Nb, Zr, and Rb), is the first economic deposit of our country. The deposit formed related to alkaline characterized foid syenite, sodalite syenite, syenite, alkaline feldspar syenite rocks which intruded into Triassic - Lower Cretaceous limestones …

Investigation Of The Slaking Behavior Of Weak Geological Units In Terms Of Undercutting Rate, Semiha Özdemi̇r, Zeynal Abiddin Ergüler

Bulletin of the Mineral Research and Exploration

It is aimed in this study to measure the undercutting rate of weak geological units under field conditions and to determine the relationship between this parameter and other indexes and physical properties of related rocks. Thus, 11 different locations in which weak materials were found and undercutting problems were observed in the road slopes were selected. In these road cuts, the undercutting depths in many locations were obtained by measurements taken at different dates from the pins installed in the fresh surface of weak units. In addition, undercutting depth was directly taken by using the amount of erosion between durable …

Highly Siderophile Element And Osmium Isotope Systematics Of Basaltic Volcanics: A Different Approach To Petrological Processes, Mehmet Arslan, İrfan Temi̇zel, Emel Abdi̇oğlu Yazar, Bahrican Ar, Cem Yücel

Bulletin of the Mineral Research and Exploration

The highly siderophile element (HSE) or platinum group element (PGE) and Os isotope systematics of basaltic volcanics have recently received a significant attention because of their potential to constrain the petrological processes on magma generation and evolution. The HSE and Os isotope data, which are generally observed at very low concentrations in basalts and obtained by modern enrichment and analytical techniques, are frequently used in petrological studies. The HSE contents and ratios from whole-rock analysis of basalts, and combined evaluation with the theoretical knowledge and modelling of HSE behaviour during the partial melting of mantle and the differentiation of basaltic …

Hydrogeological And Water Quality Evaluation Of Parts Of River Mamu Sub-Basin, Southeastern Nigeria, Emmanuel Kenechukwu Anakwuba, Chinenye Margaret Okolo, Valeria Chibuzo Ahaneku, Stella Nwaife Chibuzor, Augustine Ifeanyi Chinwuko

Bulletin of the Mineral Research and Exploration

The water sources in parts of the River Mamu sub-Basin, southeastern Nigeria were evaluated for domestic and agricultural purposes using hydrogeology and water quality. Thirty water samples from both surface water and groundwater were analysed for hydrochemical and biological parameters. The average depth to aquifers and their thicknesses are 109.9m and 11.8m respectively. The concentration of the major ions, TDS and EC are within the DSÖ permissible guidelines for drinking water. Heavy metals concentration ranges in mg/L for Cd2+ (0 - 0.06), Cr3+ (0 - 0.19), Hg2+(0 -1.0), As3+ (0 - 0.14) and total Fe (0 - 2.4) which in …

Comparison Of The Results Of The Suppression Of Surface Related Multiple Reflections By Predictive Deconvolution In Pre- And Post-Stack In 2d Marine Seismic Reflection Data: A Case Study From The Sea Of Marmara, Mehmet Ali Üge, Ali İsmet Kanli

Bulletin of the Mineral Research and Exploration

This study aims to suppress the multiple reflections from the multi-channel seismic reflection data, which collected on the profile M97-29 at the Sea of Marmara with the MTA Sismik-1 Vessel in 1997 by the General Directorate of Mineral Research and Exploration (MTA), both at the pre- and post-stack stages separately, by using predictive deconvolution and to compare both results. The stack section obtained by applying predictive deconvolution to the pre-stack shot gathers, is compared with the stack section obtained by applying predictive deconvolution to the post-stack section, which has no predictive deconvolution application before stack. The multiple reflections are mostly …

Geological, Mineralogical-Petrographical And Fluid Inclusion Characteristics Of The Çatalçam (Soma-Manisa) Au-Pb-Zn-Cu Mineralization, Ramazan Sari, Şahset Küçükefe, Gülcan Bozkaya, Ömer Bozkaya, Fatih Bademler, Zehra Deveci̇ Aral, Elif Dilek Bayrakçioğlu, Cahit Dönmez, Serkan Özkümüş

Bulletin of the Mineral Research and Exploration

The study area is located in the southeastern Biga Peninsula. As result of field, drilling and laboratory studies, diorite porphyry intruded to Lower Miocene and older units and contained Au, Pb, Zn and Cu anomalies, has been determined. Intersected potassic, propylitic, phyllic and argillic alteration zones were developed in the pluton and host rock. Veins-veinlets developed in the pluton and host rock, contain native gold, silver, pyrite, chalcopyrite, sphalerite and galena. They are composed of undulated quartz in the deeper levels, and massive quartz, calcite/dolomite and barite in the middle and upper levels. According to the fluid inclusion data from …

Imaging The Tectonic Components Under The Eastern Mediterranean And Black Sea With Gravity (Satellite) Data, Ceyhan Ertan Toker, Emin U. Ulugergerli̇

Bulletin of the Mineral Research and Exploration

Tectonic structures in the Black Sea and the Levantine Sea were mapped using satellite gravity data. The relationship between Antalya and Cyprus arcs is revealed by the deformation traces of the arc formation. The Cyprus arc which over the slice that disappears from the South of the Anaximander seamounts to the Northeast, can traceable at the western end of the Antalya Bay. The distinction of western and eastern basins in the Black Sea is also mapped. Due to the low spatial resolution, additional studies with higher resolution are required.

https://doi.org/10.19111/bulletinofmre.975929

The Distribution Of Elements In The Alteration Of Feldspatic Minerals, Kıymet Deni̇z, Yusuf Kağan Kadioğlu, Tamer Koralay, Bahattin Güllü

Bulletin of the Mineral Research and Exploration

Feldspar (alkali feldspar and plagioclases) and in recent years feldspathoid minerals are used as raw materials in the ceramic-glass industries. The igneous rocks such as granite, syenite and foid syenite which mainly contain these minerals have the potential to be raw materials. Some inclusions within the feldspatic minerals affect extremely negatively the desired values for raw material. In this study, the effective processes in the alteration of feldspatic minerals within the Özvatan foid syenites, the effects of alteration minerals in the raw material were evaluated and the effects of the elements released by alteration on the environment were revealed. The …

Alien Foraminifers Of The Northern And Northeastern Coastlines Of Cyprus Island, Engin Meri̇ç, M. Baki Yokeş, İpek F. Barut, Atike Nazi̇k, Mustafa Eryilmaz, Fulya Yücesoy Eryilmaz, M. Fatih Hüseyi̇noğlu, Mustafa Kumral, Erol Sari

Bulletin of the Mineral Research and Exploration

The study area covers the northern coasts of Cyprus from the Güzelyurt Gulf to the Gazimağusa Gulf. This study was carried out in order to reveal the presence of the alien foraminifera, which are widely distributed in the Eastern Mediterranean particularly Amphistegina lobifera in the study area, and the effects of trace elements on faunal assemblages (foraminifera, ostracod and mollusc). The bottom sediment samples were taken from eighteen different points and depths, the faunal assemblages were examined, and the sediment distribution map of the studied area was made by ICP-MS analysis and geochemical evaluations. 30 genera and 48 species of …

The Relationship Between Seismic Quality Factor And Peak Ground Acceleration, A Case Study: M=4.3, 17.01.2015 Eskişehir Earthquake, Muammer Tün

Bulletin of the Mineral Research and Exploration

Seismic wave propagation in subsurface media endures from absorption, which can be evaluated by the seismic quality factor Q (Q-factor). Absorption is frequency-dependent. Lower frequencies are absorbed less, while higher frequencies are absorbed more. Therefore, the Q Factor should be determined in the frequency domain. Q-factor is determined by the slope of the natural logarithm of the output-input signals ratio. Surface waves (Rayleigh and Love waves) are particularly important, as they are the more destructive phases of an earthquake. This study was, focused on the Q-factor computation of the surface waves and demonstrated that the determination of the Q-factor is …

Segmentation And Classification Algorithms Applied To Sentinel-2a Images For Geological Mapping: Case Of The Al Glo’A Sheet (1/50000), Morocco, Abdessamad El Atillah, Mouhssine El Atillah, Zine El Abidine El Morjani, Khalid El Fazazy, Mustapha Souhassou

Bulletin of the Mineral Research and Exploration

The multispectral image, of Landsat 7 and 8; Aster and Sentinel-2A, has good results in lithological, structural, hydrothermal and mineralogical alteration mapping. Segmentation and image classification are two complementary steps as they are allowed the most important operations in the field of image processing. In this sense, this work aims at evaluating the potential of segmentation and classification algorithms for the generation of surface geological maps, hydrothermal alterations and lineaments. Given the good resolution of the Sentinel 2A (10m), the three images, (11/12; 11/2; 11/8), 12.8.2, main component 1, 2 and 3 (11.12.2), processed by five algorithms (K-means, Isodata, watershed, …

Active Tectonics Of Gülpınar-Tuzla Area (Biga Peninsula, Nw Turkey): The Source Of 6 February-24 March 2017 Earthquake Cluster, Ali Koçyi̇ği̇t, Şule Gürboğa

Bulletin of the Mineral Research and Exploration

The variation in the motion sense of Anatolian platelet in Aegean Sea resulted in a strike-slip tectonic regime and related neotectonic domain, the central to northern Aegean neotectonic province, which also includes both western Marmara Sea and Biga Peninsula. Our study focuses mostly on the Gülpınar-Tuzla earthquake area located at the southwestern tip of Biga Peninsula,which is controlled by the southern major strand of the North Anatolian Fault System (NAFS). The strand consists of two sections, the onshore Biga and offshore Babakale-Skyros sections. Both sections are seismically very active. The Gülpınar-Tuzla earthquake area is composed of the Paleozoic metamorphic rocks, …

Investigation Of The Coefficient Of Consolidation Of Fine-Grained Soils Using Combined Apparatus, Ramin Asadi̇, Kamil Kayabali, Mehmet Can Balci

Bulletin of the Mineral Research and Exploration

The scope of this investigation is to compare the coefficient of consolidation (cv) values defined by the Taylor’s Square Root of Time Fitting Method, which is obtained from the conventional oedometer tests, with the cv values calculated by Terzaghi’s One Dimensional (1D) Consolidation Theory, which is obtained from the permeability-consolidation tests performed with a combined apparatus specifically designed for this study. In addition, an empirical relation is developed to determine cv using the coefficient of permeability (k) and index properties of the soils. The cv values obtained from the permeability-consolidation tests using the combined apparatus were found to be larger …

Usability Value Of The Yenicekale Formation Exposure Around The Pazarcık (Kahramanmaraş) As A Cement Raw Material, Güldemin Darbaş, Fatma Bayrak, Ali Gürel

Bulletin of the Mineral Research and Exploration

The study area is located around Pazarcık - Narlı, Kahramanmaraş province. The aim of the study is to investigate the value of units belonging to the Yenicekale Formation Kışla Marl Member as cement raw material. As a result of XRD studies, it was determined that Yenicekale formation Kışla Marn Member which is exposed to large areas in the region is composed of illite, quartz, dolomite, calcite, and chlorite minerals by rock analyzed. By geochemical analysis, SiO₂, Al₂O₃, Fe₂O₃, CaO, MgO, K₂O, Na₂O, SO₃ contents of …

New Age Findings With Microfossils Of The Van Formation (Van, Eastern Anatolia), Ayşegül Güney, Elvan Demi̇rci̇, Kemal Korkmaz, Sefer Örçen

Bulletin of the Mineral Research and Exploration

Van Formation, which is mainly represented by conglomerate, sandstone, marl and limestone, covers a large area around the Van province. The age of the unit was assigned in different localities of the region as late Oligocene - middle Miocene, early Miocene, Burdigalian - Langhian (early - middle Miocene) by previous studies. In order to determine the age of the upper levels of the formation in the east and southeast of Lake Van, a total of 98 samples collected from three measured stratigraphic sections. These samples have been examined in terms of calcareous nannoplankton and planktonic foraminiferal content. 33 species of …

Ilk_Inv: A Matlab Based Algorithm For Rapid Computation Of Pseudo-3d Density Contrast Distribution By Using Bouguer Gravity Data, İlkin Özsöz

Bulletin of the Mineral Research and Exploration

The new generation Matlab-based algorithm provides a rapid estimation of density contrast distribution. The 3D assumption, which is based on the 1D equation, is used. Therefore, the output is called pseudo-3D instead of 3D. The algorithm uses singular value decomposition and the median filter to produce pseudo-3D results. The success of the method is tested by theoretical and field studies. For synthetic studies, single-source models produce reasonable outputs, compared to the true density contrast value. However, the multiple source model shows slight deviations which are ±0.3 g/cm3, with respect to the true density contrast value. The acceptable results are observed …