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Simulation Of A Salt Dome Using 2d Linear And Nonlinear Inverse Modeling Of Residual Gravity Field Data, Soheyl Pourreza, Farnush Hajizadeh

Bulletin of the Mineral Research and Exploration

In gravity field inversion we usually dealing with underdetermined problems and for obtaining realistic solutions can introduce a depth-weighting function to the inversion algorithm. We employ a linear inversion method for determining the underground density distribution of the gravity causative mass. The validation and accuracy of method is tested on two synthetic gravity anomaly from different models, while the data are noise- free and corrupted with noise. In this paper, We also invert the 2D gravity anomaly produced by a salt dome from the northwest of Iran. The salt domes in the region under investigation are a rich source of …

Syn-Sedimentary Tectonic Markings In The Oligocene Datça-Kale-Acı Göl Basin, Western Anatolia, Gülşen Elmas, Gürol Seyi̇toğlu, Nizamettin Kazanci, Veysel Işik

Bulletin of the Mineral Research and Exploration

In southwest Turkey, the Oligocene sedimentary sequence is located on the Datça-Kale-Acı Göl basin between the Menderes Massif and Lycian nappes. To understand the nature of this basin is important for tectonic models that explain the exhumation of the Menderes massif. In the northeast extension of this basin, the sedimentary sequence is interpreted as alluvial fan, fan-delta, beach, marine input, inner shelf carbonates and offshore deposits. The Oligocene Datça-Kale main breakaway fault bounding the south eastern margin of the basin is represented by İnceler and Acı Göl faults in the study area. The wedge geometry of the sequence thickening towards …

Paleoenvironmental Features And Ostracod Investigation Of Paleogene-Neogene Sequences In Babaeski- Lüleburgaz- Muratlı-Çorlu Region (Southeastern Thrace, Turkey), Ümit Şafak

Bulletin of the Mineral Research and Exploration

Aim of the study is to evaluate the Paleogene-Neogene sequences of Babaeski- Lüleburgaz- Muratlı-Çorlu (Southeastern Thrace, Turkey) region using the micropaleontological analysis on two borehole samples collected by Mineral Research and Exploration (MTA), measured sections and point samples taken from the neighborhood of Silivri, Türkmenli-Çorlu, Babaeski-Lüleburgaz, Edirne –Babaeski regions and Tekirdağ-Hayrabolu road. There the lignite sandstone, siltstone (Early Oligocene aged Danişmen Formation) and silts (Late Miocene-Pliocene aged Ergene Formation) with well-preserved ostracod fauna obtained from the the upper levels of the sequence along with some micro-Mollusca at some levels. The study results showed that lacustrine and lagoonal ostracods including marine …

Petrological And Geochemical Features Of Biga Peninsula Granitoids, Nw Anatolia, Turkey, Ümit Aydin, Pınar Şen, Öner Özmen, Erdal Şen

Bulletin of the Mineral Research and Exploration

In Northwest Anatolia, widespread magmatism developed due to collision between Anatolide-Tauride platform and Sakarya continent during Late Cretaceous-Early Tertiary period. The granitoids in Biga Peninsula are products of post-collisional magmatism following the convergence of the northern branch of Neotethyan Ocean and developed in two different stages as Eocene and Oligo-Miocene. Eocene Karabiga, Güreci, Kuşçayır and Dikmen granitoids are granite and diorite-granodiorite; Oligo-Miocene Sarıoluk, Yenice, Kestanbol, Eybek, Evciler, Çamyayla and Alanköy granitoids are diorite, granodiorite, monzonite and Q-monzonite in composition. Metaluminous and peraluminous granitoids have similar geochemical variations and exhibit post-collisional geochemical signatures. Trace element patterns are almost similar to those …

Rare Earth Elements And Yttrium Geochemistry Of The Geothermal Fields In The Eastern Black Sea Region (Ordu, Rize, Artvin), Ne Turkey, Esra Hatıpoglu Temızel, Fatma Gülteki̇n, Arzu Fırat Ersoy

Bulletin of the Mineral Research and Exploration

In this study, behavior and migration processes of rare earth elements (REEs) were determined in the thermal and cold waters of the geothermal fields in the Eastern Black Sea Region.The temperatures of the geothermal waters are between the range of 38 and 60 °C. The water types are Na-Ca-SO4 for Sarmaşık (Ordu) field, Na-Ca-HCO3 for Ikizdere (Rize) field, Na-Ca-CO3-SO4, for Ayder (Rize) field and Na-HCO3-Cl for Savsat (Artvin) field. All geothermal fields are in alkaline geothermal character (pH: 7-9.3) and have very low REE + Y concentrations, slightly significant Ce contens and significantly positive Eu anomalies (except for Ayder geothermal …

Statistical Approach By Factor And Cluster Analysis On Origin Of Elements From The Hamit Plutonic (Turkey) Rock Samples, Fusun Yalcin, Daniel G. Nyamsari, Nurdane İlbeyli̇, Rifat Battaloglu

Bulletin of the Mineral Research and Exploration

The Hamit pluton forms part of the Central Anatolian Crystalline Complex. It is located N-NE of Kaman (Kirsehir). It covers an area of about 120 km2. The geochemical contents of 63 rock samples collected from this pluton were analyzed for their origin, homogeneity and relationship with crustal rocks. Their element contents were determined by using X-Ray Fluorescence spectroscopy. The samples were divided into 2 major groups based on their similarities: Group 1 contained 63.5% of the samples and indicated they were formed from melts whose contents might have evolved greatly due to crustal assimilation; while the 36.5% of samples belonged …

Nummulites Sireli Deveciler (Junior Homonym Of N. Sireli Alan) Renamed As Nummulites Ercumenti Nom. Nov, Ali Deveciler

Bulletin of the Mineral Research and Exploration

A new published species under the scope of this journal (Nummulites sireli Deveciler) was renamed as Nummulites ercumenti nom.nov for being a junior homonym of an another Nummulites species.

https://doi.org/10.19111/bulletinofmre.624531

Mineral Resource Estimation Using A Combination Of Drilling And Ip-Rs Data Using Statistical And Cokriging Methods, Kamran Mostafaei, Hamidreza Ramazi

Bulletin of the Mineral Research and Exploration

The aim of this research is the mineral resource estimation using a combination of drilling and IP-Rs data. Therefore the approach of this paper is to study the correlation of induced polarization (IP) and Electrical resistivity (Rs) data with drilling data in order to grade estimation and mineral resource estimation. Reducing the boreholes number and optimization of the boreholes location is another aim of this research. The Abassabad copper mine located in Miami-Sabzevar mineralization belt northeast Iran was chosen as a case study. Within the borehole locations, geophysical profiles were designed and surveyed. After IP-Rs data inversion, 2D sections were …

Landslide Susceptibility Mapping Using Information Value And Frequency Ratio For The Arzew Sector (North-Western Of Algeria), Roukh Zine El Abidine, Nadji Abdelmansour

Bulletin of the Mineral Research and Exploration

Geological hazards present one of the most important constraints for the development of the Arzew sector (Oran province), North Western of Algeria. Landslides are considered us one of the most common phenomena in the study area and especially in the hilly area. For minimizing and reducing the consequences of this problem, it is necessary to carry out preliminary studies on the cartography of the different zones exposed to the slope instability phenomena. The main objective of this study is to perform the landslide susceptibility mapping by statistical models and GIS techniques for the Arzew area. To achieve this goal, an …

Appearance Features Of Clayey Mixtures Having Fly Ashes, Fatma Dagci, Nazli Ipek Kul Gul, Niyazi Ugur Kockal

Bulletin of the Mineral Research and Exploration

The use of wastes has become very significant and widespread in terms of sustainable production of clayey mixtures, since the wastes provide many advantages. In this study, the effects of two different types of fly ash, which were wastes of Seyitomer and Cayirhan thermal power plants, on the color change of brick samples with various amount of fly ash ranging between 0 to 60% at different sintering temperatures were investigated. As a result, traditional red colored bricks could be produced with fly ash without using a separate raw material to meet the color requirements. It was found that desired colors …

Sedimentological Properties And Depositional Environments Of The Holocene Sequence In Yenikapı, İstanbul, Meltem Sezerer Bulut, M.Namık Yalçin, Oya Algan

Bulletin of the Mineral Research and Exploration

During the salvage excavations in the area of the former Theodosian harbor in Yenikapı-İstanbul several ship wrecks from the Byzantine period, archaeological objects from different periods and a Holocene aged sedimentary sequence have been uncovered. In this study the lithological, lithostratigraphical and facies properties of the Holocene sequence are investigated in detail and its depositional environment is determined. For this purpose along four profiles (S1, S2, S3, S4) 14 different sections of a total thickness of 17.75 m are studied and 100 samples are collected. The grain size distribution of the samples is defined by sieve and sedigraph analysis and …

The Gas Hydrate Potential Of The Eastern Mediterranean Basin, Şükrü Merey, Sotirios Nik. Longinos

Bulletin of the Mineral Research and Exploration

Gas hydrate exploration studies have increased substantially since last decade. Gas hydrate reservoirs are commonly found in the marine environment and permafrost. Studies related to natural gas hydrates in the Mediterranean Basin are rare compared to those released on the continental margins of the United States of America, Japan, India, China and Korea. This study provides an evaluation of the gas hydrate potential of the Mediterranean Basin using available literatüre data such as scientific drilling data (Ocean Drilling Program Leg 160 and Leg 161), sediment data, geothermal data, geochemical data, gas seepage data, mud volcano data etc., It is shown …

Geological Structures Mapping Using Aeromagnetic Prospecting And Remote Sensing Data In The Karstic Massif Of Beni Mellal Atlas, Morocco, Ikram Boutirame, Ahmed Boukdir, Ahmed Akhssas, Ahmed Manar

Bulletin of the Mineral Research and Exploration

The current study exposes the results of aeromagnetic data interpretation and a combined analysis of 1-A sentinel radar image that cover the study area of Beni Mellal Atlas in order to describe the structural geometry and to understand its tectonic evolution. The map of the reduced to pole of residual magnetic field highlights various magnetic anomalies with high amplitudes that correspond to Jurassic-Cretaceous basaltic formations outcropping synclinal basins of Beni Mellal Atlas. The interpretation of magnetic data using tilt derivative (TDR), horizontal gradient technique coupled to upward continuation and Euler Deconvolution allows us to distinguish the fractures network that is …

Geochemistry And Tectonic Signifi Cance Of The Ophiolitic Rocks Of The Yarpuz-Kaypak (Amanoslar, Osmaniye) Area, Tamer Rizaoğlu, Utku Bağci, Osman Parlak

Bulletin of the Mineral Research and Exploration

Yarpuz-Kaypak (Osmaniye) region, located in Amanos Mountains, contains harzburgitic tectonites and mafic cumulates. The tectonites are represented by serpantinized harzburgites, whereas the cumulates are characterized by gabbronorite and gabbro compositions. The crystallization order within the cumulates is clinopyroxene, orthopyroxene plagioclase and amphibole. The major element compositions of the tectonites and cumulate rocks are consistent with formation in an arc-related tectonic setting. Trace element concentrations of these rocks exhibit large ion litophile element enrichments. Both geochemical and petrographic evidence suggest that the tectonite and cumulate rocks from the Yarpuz-Kaypak (Osmaniye) region represent the remnants of an oceanic lithosphere that formed in …

Descriptions, Systematics And Revisions Of The Subgenera Alveolina (Glomalveolina) Hottinger, 1960 And Alveolina (Alveolina) D’Orbigny, 1826 (Foraminiferida), Şükrü Acar

Bulletin of the Mineral Research and Exploration

In this study, the genus Alveolina D’ Orbigny, 1826 and its Alveolina (Alveolina) D’ Orbigny, 1826 and Alveolina (Glomalveolina) Hottinger, 1960 subgenera were re-examined and identified. Systematics of the subgenera Alveolina (Alveolina)=Alv. (Alv.) and Alveolina (Glomalveolina)=Alv.(Glomalv.) have also been reviewed and revised. Alv. (Glomalv.) is considered as a subgenus, not a genus (?). Because, all the generic features of microspheric generations (fB) of these two subgenera are identical. Thus, Alveolina D’ Orbigny, 1826 and Glomalveolina Hottinger, 1960 cannot be used as if they were two different genera (?). Otherwise Glomalveolina would be the synonym of Alveolina in “Systematic Paleontology” chapter. …

Rare Earth Element (Ree) Resources Of Turkey: An Overview Of Their Characteristics And Origin, Hüseyin Öztürk, Nurullah Hani̇lçi̇, Sinan Altuncu, Cem Kasapçi

Bulletin of the Mineral Research and Exploration

The Rare Earth Elements (REE) deposits and mineralization of Turkey can be divided into four types based on their geological setting and origin. First are deposits associated with carbonatite- alkaline magmatic rocks, rich in Light Rare Earth Elements (LREE). The best known examples are the Kızılcaören (Eskişehir) and Kuluncak (Malatya) deposits with TREE grades of 2.9% and 0.7% respectively, and typical enrichment of La-Ce. Lower grade REE mineralization at Keban (0.05% TREE) and Divriği (0.13% TREE) is associated with abundant fluorite and all four occurrences show similar ranges for homogenization temperatures and salinities for fluid inclusions in fluorite and REE …

Statistical Assessment Of Radiation Exposure Risks Of Farmers In Odo Oba, Southwestern Nigeria, Theophilus Aanuoluwa Adagunodo, Lukman Ayobami Sunmonu, Moruffdeen Adedapo Adabanija, Maxwell Omeje, Oluwole Akinwumi Odetunmibi, Victor Ijeh

Bulletin of the Mineral Research and Exploration

The toxicity risks of being over exposed to ionizing radiation in the environments are of great concern to environmental and health scientists. The distribution of radioactivity concentrations of thorium, uranium and potassium were studied in randomly selected soil samples from ten (10) farm locations in Odo Oba, southwestern Nigeria in order to determine the radiological risks of farmers’ exposure to radionuclides. The mean estimation of thorium and potassium are greater than the global average by factors of 1,5 and 2,7, while that of uranium fall below the global average. The estimation of radioactivity ratios showed a depletion of uranium and …

Evaluation Of The Alternatives For Gold Ore Grinding Circuits By Using Of Laboratory Studies Results And Simulation Method; Case Study: İranian Gold Co., Hojjat Hosseinzadeh Gharehgheshl, Ayşe Tuğba Cebeci̇, Levent Ergün

Bulletin of the Mineral Research and Exploration

In this study, simulation aided design of grinding circuit for a gold mine in Iran is presented. The main parameters for the design of the grinding circuit are the ore specifications and the considered operating conditions. Ore specifications were characterized by grinding tests, which included the Drop – weigh test (A, b), the abrasion test (ta) and the Bond Work Index test (Wi). For this study, the operating conditions for the processing plant are the ability to process clayey minerals and the plant throughput and the d80 of the hydrocyclone overflow (leaching tank feed), which are 125 tons per hour …

A Brief Note On The Effects Of Floating Standard Deviation (Non- Derivative) And Horizontal Gradient (Derivative) Filters, Ceyhan Ertan Toker

Bulletin of the Mineral Research and Exploration

When processing gravity data, the filters are used in space and frequency environments. The filters allow more selectable parameter estimations than raw data about the structure being examined. Filtering in a broad sense means monitoring the data under the constraints we want. While the filters allow some information to become more noticeable, they allow some information to be lost or become less noticeable from data. In this case, the losses in the data make the interpretation difficult and can cause errors. Derivative and phase filters provide quantitative information about the variation of data in different directions. The display of the …

Typomorphic Features Of The Quartz Of Various Mineral Paragenesis From The Gold Mineralization In Karakshatau Mountains (West Uzbekistan), Svetlana Koloskova, Jahongir Movlanov

Bulletin of the Mineral Research and Exploration

As a result of complex studies - geological-structural, morphostructural analytical, mineralogical mapping of quartz formations, detailed geochemical work and analysis of geochemical fields – forecasting prospecting features of gold ore taxon’s: ore zone; ore field; deposit and ore body. They are characterized by groups of criteria: morphostructural, stratigraphic-lithological, structural-tectonic, magmatic, geophysical, metasomatic, mineralogical, geochemical factors and attributes, and a geological-genetic model of the gold-bearing ore-forming system in the collapse zone. Favorable geological and structural conditions for the localization of gold mineralization in the mountains of Karakchatau are associated with the areas of long-term tectonic-magmatic activation in metalliferous sediments of Є-О …

Active Tectonic And Paleoseismologic Characteristics Of The Yenice-Gönen Fault, Nw Turkey, In Light Of The 18 March 1953 Yenice-Gönen Earthquake (Ms=7.2), Akın Kürçer, Selim Özalp, Ersin Özdemi̇r, Çağıl Uygun Güldoğan, Tamer Y. Duman

Bulletin of the Mineral Research and Exploration

The Yenice-Gönen Fault (YGF) is located in the central part of the Biga Peninsula between Gönen and Yenice and is a right-lateral strike-slip active fault with general trending N65°E. On 18 March 1953 there was an earthquake on the YGF that died 263 people (Ms=7.2) and a 70 km surface rupture developed during this earthquake. In this study measurements of slip distribution were performed on the surface rupture of the Yenice-Gönen Earthquake (YGE) and the annual slip rate on the YGF was calculated. Right-lateral displacements of between 1.70±0.1 and 3.20±0.2 metres were measured on the surface rupture of the YGE. …

Relationship Between Petroleum And Iodine In Southeastern Anatolia Basin, Adil Özdemi̇r

Bulletin of the Mineral Research and Exploration

This study was made for investigating the relationship between iodine and hydrocarbon accumulations and to determine iodine contents of formation waters in the Southeastern Anatolia basin oilfields where have been produced almost all of the Turkey oils (more than 95%). Formation water samples have taken from 234 production wells in 49 oilfields which have different geological structures where oil and gas production has performed by the Turkish Petroleum Company (TPAO). Also, the drilling mud samples from EBY-17 oilwell in Elbeyli (Adıyaman) field has collected, and their iodine analyses were carried out. Although the fields in the Southeastern Anatolia basin are …

Multivariate Analysis Of Log-Ratio Transformed Data And Its Priority In Mining Science: Porphyry And Polymetallic Vein Deposits Case Studies, Farshad Darabi-Golestan, Ardeshir Hezarkhani

Bulletin of the Mineral Research and Exploration

Each mineralization style is characterized by typical signature associations between elements due to elemental interactions, therefore the coherence and closure effects problem must be overcome in geochemical processing. The coherence indicates the ratios between two components (rows or columns) remains the same whether they are considered in a subcomposition or in the full composition. The log-ratio transformation (LRT) has recognized as a standard procedure to support subcompositional coherence. The log-transformed data is applicable for geochemical data to unveil such associations, prior to applying the multivariate analysis like correspondence analysis (CA) and principal component analysis (PCA). At the present study, subcompositional …

Paleoseismological Catalog Of Pre-2012 Trench Studies On The Active Faults In Turkey, Şule Gürboğa, Oktay Gökçe

Bulletin of the Mineral Research and Exploration

Instrumental and historical earthquake catalogues have to be examined and evaluated to understand the long-term seismic behaviour of active faults. Although the instrumental records have been determined from the national and international observatories, the historical seismic catalogues are very limited in Turkey. For the reason, we aimed to compile paleoseismological trench studies carried out before 2012 in the areas of onshore and offshore sections of Turkey. In terms of a Turkey Paleoseismological Project (TURKPAP) posted by General Directorate of Mineral Research and Exploration (MTA) in the 2012 year, a number of paleoseismological investigations have been initiated and documented for archiving …

The Control Of Sea-Level Changes On Sedimentation In The Mut Basin: Late Serravallian-Early Tortonian Incised Valley-Fill, Ayhan Ilgar, Tolga Esi̇rtgen, Aynur Hakyemez, Gönül Culha, Serap Demi̇rkaya, Banu Türkmen Bozkurt

Bulletin of the Mineral Research and Exploration

Early–middle Miocene reefal limestones are overlain disconformably by late Serravallian– early Tortonian incised valley-fi ll deposits of Dağpazarı formation in the Mut Basin. Dağpazarı formation is composed of mudstone, siltstone, sandstone and conglomerates. Facies associations of the formation are: fl uvial, lagoon, shoal-water delta, shoreface, beach and barrier island deposits. Loxoconcha tumida Brady and Loxoconcha sp. in the gray mudstones indicate the freshwater infl uence and decrease in salinity. Hemicyprideis sp. documents brackish water conditions. The shoreface sandstones alternating with the lagoonal mudstones, and oyster-rich beach deposits in different levels of the sequence indicate episodes of marine connections. The age …

Mineralogy, Petrography And Origin Of Hydrothermal Alteration In Eocene Magmatites In Central Anatolia (Sivas-Turkey), Zeynel Başibüyük, Hüseyin Yalçin

Bulletin of the Mineral Research and Exploration

Three different types of hydrothermal alterations have occurred in the Eocene magmatics of the northern part of Sivas-Turkey which include propylitic phyllic / sericitic and argillic. Hydrothermal alteration affected both Karataş volcanites and Kösedağ syenite. The clay formations are concentrated in two major zones; extending in NE-SW direction and intersecting both plutonic and volcanic rocks with circular opening cracks within the volcanics parallel to the plutonic-volcanic contact. Hypogene and supergene hydrothermal alteration products occurring on surface and/or near surface conditions represent the primary and secondary minerals that develop directly and mostly from feldspars with the mechanisms of neoformation and/or degradation. …

Factors Controlling The Paleo-Sedimentary Conditions Of Çeltek Oil Shale, Sorgun-Yozgat/Turkey, Berna Yavuz Pehlivanli

Bulletin of the Mineral Research and Exploration

The study field covering an area of about 1000 km2 is located in Sorgun town of the city of Yozgat. In the region Paleozoic, Campanian-Maastrichtian, Eocene, Miocene and Quaternary units are exposed. Among these units, the lower Eocene Çeltek formation hosts coal beds and oil shale. The Eocene epoch is important for organic matter deposition regarding oil and gas productivity and anoxic depositional conditions. In order to examine the paleo-sedimentary conditions of oil shales in the study area and their relation to Total Organic Carbon (TOC) contents and major-trace element contents, a total of 29 samples were collected from two …

Investigation Of Feldspar Raw Material Potential Of Alkali Feldspar Granites And Alkali Feldspar Syenites Within Central Anatolia, Kıymet Deni̇z, Yusuf Kağan Kadioğlu

Bulletin of the Mineral Research and Exploration

Alkali feldspar granites are intrusive rocks and mainly composed of alkali feldspar, quartz and plagioclase. They represent one of the major sources that provide raw materials for glass and ceramics industry because of their high feldspar and quartz contents. In addition to alkali feldspar granites, also alkali feldspar syenites have potential to become raw material source due to their high feldspar and feldspathoid contents. These rocks are exposed in large areas within Central Anatolia. For this reason, alkali feldspar granites within Ağaçören Intrusive Suite (AIS) (Kalebalta, Yıldırımlı, Çerkezuşağı, Çatalçeşme, İbrahimbeyli, Deliler, Ekecik, Sipahiler, Camili, Yaylak, Namlıkışla), Hacılı Suite (Sarıhacılı), Cefalık, …

The Prediction Of The Expandability Of Clays Using A Ternary Diagram, Ahmet Özgüven

Bulletin of the Mineral Research and Exploration

The aim of this study is to put forward a prediction scheme for the expandability of clays by use of inexpensive and rapid chemical analysis. Seventy clay ores from fourteen locations throughout central and west Turkey were characterized mineralogically, chemically, and for expansion testing. Using the ternary plotting scheme of SiO₂-Al₂O₃-fl uxing samples exceeding 50% expansion plotted within and slightly beyond the region proposed by Riley (1951). This study newly extends the region in ternary space for samples suitable for expansion and use in light weight aggregate. Non-expanding samples are associated with mineral assemblages …

Evaluation Of Soil Geochemistry Data Of Canca Area (Gümüşhane, Turkey) By Means Of Inverse Distance Weighting (Idw) And Kriging Methods-Preliminary Findings, Alaaddin Vural

Bulletin of the Mineral Research and Exploration

The purpose of this study is to assess soil geochemical data of the Canca alteration area (Gümüşhane- Turkey) using statistical methods and investigate potential gold mineralizations of the area. With this purpose, 288 soil samples were collected and analyzed for gold and associated pathfinder elements. The concentrations ranged (Au and Hg: in μg/kg, others in mg/kg) between 0,68-19,20; 0,02-28,97; 2-314; 7-857; 2,1-394; 4-199,5; 0,59-49,29; 5-89; 0,04-37; 0,52-16,30; 1,25-91,9 for Au, Ag, Cu, Pb, Zn, As, Sb, Bi, Mo, Sn and Hg respectively. According to Sperman’s rho correlation coefficients, although not very strong, correlation was observed between Cu and Au; Zn …