Physical Sciences and Mathematics Commons^™

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 …

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 …

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 …

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 …

Geological, Mineralogical And Geochemical Properties Of The Dağbaşı Skarn Ores (Araklı-Trabzon, Ne Turkey), Yılmaz Demi̇r

Bulletin of the Mineral Research and Exploration

The Dağbaşı skarns have developed as an exoskarn type along the nearest border of Upper Cretaceous Dağbaşı Granitoid and block- and lens-shaped limestones of Berdiga Formation. The early garnets are predominantly grossular type (And0–0.81Grs59.69–78.65Prs21.35–38.11), while pyroxenes have a composition between diopside and hedenbergite (Hed24.44–31.81Diy67.3–76.99Joh0.52–0.88). The late garnets are characterized by high andradite (And74.67–100Grs0–22.8Prs0–4.51), and late pyroxenes by increasing johannsenite content (Hed22.17–62.63Diy0–36.2Joh31.86–76.69). High andradite content of late garnets is similar to Cu–Fe-type skarns, whereas the higher johannsenite and Mn/Fe ratios of pyroxenes are similar to Zn-type skarns. Higher andraditic garnets indicate an oxidized-type skarn and association with the shallow emplacement of …

Tectonostratigraphic Characteristics Of The Area Between Çayeli (Rize) And İspir (Erzurum), İsmet Alan, Veli Balci, Halil Keski̇n, İbrahim Altun, Nevzat Böke, Hünkar Demi̇rbağ, Sedat Arman, Hasan Eli̇bol, Mustafa Soyaki̇l, Alican Kop, Nurullah Hani̇lçi̇

Bulletin of the Mineral Research and Exploration

The study area is located in the Eastern Pontides between Rize, Çayeli, Arhavi, İspir and İkizdere. In this area, Maçka Tectonic Slice (MTS) and Taşköprü Tectonic Slice (TTS) are exposed. MTS is composed from old to young; Late Jurassic-Early Cretaceous limestone (Berdiga fm.); Turonian- Santonian conglomerate, sandstone, micritic limestone, siltstone, marl, basaltic, basaltic-andesitic lava, pyroclastites (Çatak fm.); Santonian rhyolitic, dacitic lava, pyroclastites, sandstone, clayey limestone (Kızılkaya fm.); late Santonian-Campanian basaltic, andesitic lava, pyroclastites, sandstone, clayey limestone (Caglayan fm.); Campanian-Mastrihtian rhyolitic, dacitic lava, pyroclastites, sandstone, clayey limestone (Çayırbağ fm.);late Maastrichtian-Danian sandstone, claystone, tuff, marl, clayey limestone (Cankurtaran fm.). Sedimentary, volcanosedimentary units …

Structural Properties And Tectonic Signi Ficance Of A Shear Zone Discovered Within The Tauride Orogen Near Alanya, Sw Turkey, Volkan Özaksoy

Bulletin of the Mineral Research and Exploration

A major shear zone, referred to as the Yeşilöz Shear Zone, was discovered in the lower Mahmutlar Nappe of the Alanya Nappe Complex in Alanya region. The nappe shows early transposed folds with axial metamorphic foliation and upright open folds formed during emplacement. The NW-trending shear zone is around 2 km wide and mappable over a length segment of 10 km. The shear zone consists of the metamorphic rocks of the host nappe, but with the phyllite mylonitized by vertical shear foliation and the quartzite and marble dispersed as lenticular bodies. These brittle rock bodies show broken upright folds similar …

Geochemical Characteristics Of Sabalan Volcanic Rocks In Northwestern Iran, Reza Fahim Guilany, Ali Darvishzadeh, Seyed Jamal Sheikhzakariaee, Mansour Vosoughi Abedini

Bulletin of the Mineral Research and Exploration

Sabalan is a voluminous stratovolcano situated in the northwestern part of Alborz-Azerbaijan zone, 25km from Meshkinshahr. It is separated by tectonic faults from Sarab plain and Meshkinshahr. The composition of Sabalan volcanic rocks ranges from andesite, trachyandesite to dacite. The rocks have hypocrystalline porphyritic texture with a glassy matrix and microlite . Plagioclase, amphibole, pyroxene, biotite, and oxides are the main phenocryst phase of the rocks. Some plagioclases show disequilibrium textures (sieve texture and oscillatory zoning). The sieve texture and oscillatory zoning in the plagioclases may be indicative of magma mixing processes in the genesis of the Sabalan volcanic rocks. …

The Role Of Enhanced Oil Recovery In The Upstream Petroleum Sector, A Case Study From Turkey, Emre Özgür

Bulletin of the Mineral Research and Exploration

The upstream petroleum sector issues still keep its popularity worldwide. Enhanced Oil Recovery (EOR) is an essential unconventional method of improving production in the petroleum sector. The EOR is gaining more importance in the sector. 2% of the global crude oil production is performed by EOR operations currently. The crude oil production of Turkey which is now in a decreasing trend is performed from old and mature oil fields. Sharp declines are expected for the oil production in the near future if new discoveries do not take place or enhanced oil production techniques are not performed. The average recovery rate …

An Approach To Obtain The Structural Information From The Electrical Resistivity Well Logging Curves, Doğan Can Karataş, Emi̇n Uğur Ulugergerli̇, Uğur Zaman

Bulletin of the Mineral Research and Exploration

In well logging measurements, the effect of the fluid in the well on the resistivity log curves and the investigation depth/distance for 16 and 64 inches logs were investigated in two-dimensional numerical modeling with the assumption that underground structures are symmetrical. Structural information was obtained via recovering the real resistivity values by using the inversion rather than empirical approaches. Generally, in the case of using the conductive fluid (1 ohm.m<) depending on the ratio of unit thickness (k) with respect to the length of log (l) (i.e. k/l), the insulating formations produce an “M” shaped signs for k/l<1 and appears as the conductive unit that cause fictitious structures in the data. The depth/distance of the research on the other hand causes deviations in the resistivity of structure due to tool length and distance. By the help of the inversion study one of the possible models is obtained. Contribution of this method to such studies is the reveal of compatibility of the resistivity model and data that usually neglected in other approaches.

https://doi.org/10.19111/bulletinofmre.451546

A New Species Of Nummulites Lamarck (Nummulitidae, Foraminiferida) From Central Turkey, Ali Deveciler

Bulletin of the Mineral Research and Exploration

A new nummulitid species Nummulites sireli n. sp. is described from the middle Lutetian of the Çayraz section, North of Haymana, South of Ankara, Turkey. The new species is referred in to the N. distans group, of which six other species from the Haymana and Çiçekdağ regions of Central Anatolia are identifi ed.

https://doi.org/10.19111/bulletinofmre.413708

Selandian Benthic Foraminiferal Assemblages Of The Southwestern Burdur (South Of Lake Yarışlı, Western Turkey) And Some Taxonomic Revisions, Şükrü Acar

Bulletin of the Mineral Research and Exploration

In this study, new genera and species are described. These three new genera are Neosistanites (type species Sistanites iranica), Parahaymanella (type species Parahaymanella hakyemezae) and Pseudohottingerina (type species Pseudohottingerina burdurensis). Neosistanites new species and new genus (N. sozerii, N. okuyucui, N. guvenci, N. dageri, N. catali, N. armagani, N. inali) and Neosistanites iranicus are defined. Parahaymanella is the new genus and its new species (P. hakyemezae, P. bozkurti and P. alanae). New species of new genus Pseudohottingerina (Ps. burdurensis and Ps. yarisliensis). Laffitteina anatoliensis, Laffitteina thraciaensis, Sirtina paleocenica, Ankaraella minima new species and Laffitteina erki, Laffitteina mengaudi, Ankaraella trochoidea species …

Porphyry Copper Prospectivity Mapping Using Fuzzy And Fractal Modeling In Sonajeel Area, Nw Iran, Zahra Yazdi̇, Alireza Jafari̇ Rad, Mehraj Aghazadeh, Peyman Afzal

Bulletin of the Mineral Research and Exploration

Main purpose of this research is to present a local scale GIS-based mineral prospectivity model for prospecting Cu porphyry mineralization, and to validate the produced model by field observation, surface sampling and drilling data. Sonajeel area which is the subject of this study is a part of Arasbaran mineralization belt, NW of Iran. Constructing a mathematical exploratory algorithm based on a mineralization type is a complicated and interdisciplinary task. For this purpose, results from processing and interpreting different data sets including geology, geochemistry and remote sensing were considered. A comprehensive exploratory integration model was built up considering the exploration stage …

Hydro-Chemical And Isotopic Investigation Of The İspendere Mineral And Thermal Water Springs, Malatya, Turkey, Murat Çeliker, Ömer Faruk Dursun, Mahmut Fırat

Bulletin of the Mineral Research and Exploration

The objective of this study is to determine the source, chemical characteristics and isotopic components of the İspendere mineral and thermal waters, Malatya, Turkey. There are many mineral and thermal water springs in the area with flow rates ranging between 0.01 – 0.4 l/s. Geochemical and isotope chemistry studies were carried out at three different thermal springs in the region as well as three different cold water springs during May-October 2011. The temperature of mineral and thermal waters were measured as between 21.1°C – 23.6°C in May 2011 and as 20.8°C in October 2011. The region was determined as a …

The Use Of Electromagnetic And Vertical Electrical Sounding Methods In Groundwater Exploration, Hafiz Mohammed Nazi̇fi̇, Levent Gülen

Bulletin of the Mineral Research and Exploration

Electromagnetic (EM) profiling and Vertical Electrical Sounding (VES) studies were carried out for groundwater exploration in the Twifo – Hemang Lower Denkyira Districts of Ghana. These two geophysical methods were used for exploring the groundwater potentials beneath Achiase, Mbaa Mpe Hia Community and Moseaso Community. This paper seeks to encourage the use of inversion for interpreting electromagnetic data rather than the usual qualitative interpretation method using line graphs and also the use of apparent resistivity maps as 2D pseudo resistivity maps to support interpretations of the 1D inversion results (in cases where the available budget could not permit 2D and …

Geochemical And Petrologic Evolution Of Otlakbaşı Basaltic Volcanism To The East Of Lake Van, Vural Oyan

Bulletin of the Mineral Research and Exploration

Collision-related Otlakbaşı volcanism to the east of Lake Van occurred by eruptions from extensional fissures. In this study, it is investigated new Ar-Ar age data and major, trace and rare earth elements characteristics of the Otlakbaşı basaltic volcanism. The Ar-Ar age data indicate that this basaltic volcanism erupted in Early Pliocene time in contrast to its previously known as Quaternary age. The volcanic products are basaltic composition and close to alkaline-subalkaline division line. Results of fractional crystallization accompanied by assimilation (AFC) modeling imply that fractional crystallization can be negligible compared to crustal contamination in the evolution processes of the magma …

Petrography And Petrology Of The Yürekli (Balıkesir) Volcanics: An Example Of Post-Collisional Felsic Volcanism In The Biga Peninsula (Nw Turkey), Ece Simay Saatci, Zafer Aslan

Bulletin of the Mineral Research and Exploration

In this study, the aim was to determine the petrography, geochemistry and source of the Yürekli volcanics (Biga Peninsula, NW Turkey). Tertiary volcanism is widespread in Western Anatolia (NW Turkey), which is an important area where tectonic and magmatic events are observed together. Yürekli volcanic rocks comprise dacitic lavas and pyroclastics. Dacitic lavas show porphyric and hyaloporphyric texture, and consist of plagioclase, quartz, amphibole, biotite, sanidine and Fe-Ti oxide minerals with apatite and zircon accessory minerals. Petrologically, they have high-potassic and calc-alkaline characteristics. Yürekli volcanics show enrichment in large ion lithophile elements (LILE) and are depleted in high field strength …

The Relationship Of Landslides With Lithological Units And Fault Lines Occurring On The East Anatolian Fault Zone, Between Palu (Elazığ) And Bingöl, Turkey, Vedat Avci̇, Murat Sunkar

Bulletin of the Mineral Research and Exploration

In this study, the relationship of landslides with lithological units and fault lines on the East Anatolian Fault Zone (EAFZ) between Palu (Elazığ) and Bingöl, was evaluated. In the study area, which is located within the EAFZ, Göynük to the northeast, Palu Segment to the southwest, Genç Segment to the south of Bingöl plain and Gökdere Uplift in the intersection area form the main tectonic structures. In addition, the Karakoçan Fault Zone (KFZ) cutting the EAFZ in NW-SE direction between Palu and Bingöl corresponds to another important structure (system). The area, which is located in a region where a number …

Investigation Of Thermal And Mechanical Behavıors Of Construction Materials Obtained From Some Natural Stone Waste, Gökhan Erol, Devrim Pekdemi̇r

Bulletin of the Mineral Research and Exploration

In this study, thermal and mechanical behaviours of composite building materials obtained from different kinds of natural stone wastes were investigated. First of all, XRD, chemical and grain size distribution analyses were carried out to identify the natural stone wastes to be used. 60% granite (magmatic), 35% recrystallized limestone (metamorphic) and 5% pure aluminium oxide (Al₂O₃) materials were used in the prepared mixture. The prepared mixture was shaped in a steel mould 75x20x50 mm in size by adding 7% shaping water and fired at 1140 ° C, 1150 ° C and 1160 ° C. Following that …

Physicochemical Properties And Availability Of Tahar-Güzelöz (Nevşehir) Diatomite, Ayşegül Yildiz, Ali Gürel, Dilan Okutan

Bulletin of the Mineral Research and Exploration

In this study, the use areas of diatomites located within the late Miocene-Pliocene volcano sedimentary units, which formed due to the volcanism and outcropped around the Tahar and Güzelöz localities, Nevşehir, were investigated in terms of raw materials. To do this, three stratigraphic sections were measured in the study area, one of which was measured in the Tahar area (TK), and two others were measured in the Güzelöz area (GÜ1 and GÜ2). Various physicomechanical, chemical, mineralogical and analytical methods were applied on the collected samples. The analysis results of diatomites in the investigated area were determined as follows; the amount …

Geochemical Characteristics Of Gabbroic Rocks In Zyarat In North East Of Iran, Ghassem Azi̇zzadeh, Mostafa Raghi̇mi̇, Seyed Jamal Shei̇khzakari̇aee, Aziz Rahi̇mi̇ Chakdel

Bulletin of the Mineral Research and Exploration

The mafic rocks outcrops exposed in the South of Gorgan, northeastern of Iran. These gabbroic rocks are intruded into the Middle–Upper Paleozoic sedimentary rocks and Gorgan schist units representing a part of the north Gondwana province. Petrography studies of these rocks show medium to coarse grained sizes and the texture varies from ophitic to intergranular under polarized microscope. The mineralogical composition of mafic dykes is dominated by large crystals of clinopyroxene + orthopyroxene + plagioclase and hornblende. These rocks can be classified as gabbroic rock. Geochemical studies show that these rocks have low to medium K₂O contents. The …

Mineral Chemistry, Whole-Rock Geochemistry And Petrology Of Eocene I-Type Shoshonitic Plutons In The Gölköy Area (Ordu, Ne Turkey), İrfan Temi̇zel, Emel Abdi̇oğlu Yazar, Mehmet Arslan, Abdullah Kaygusuz, Zafer Aslan

Bulletin of the Mineral Research and Exploration

The Eocene intermediate to felsic plutons are widespread in varying sizes and compositions throughout the Eastern Pontides Orogenic Belt in NE Turkey. Of these, two monzonitic bodies (namely the Eriko Tepe and Göl Tepe Plutons) in the Gölköy (Ordu) area, extend nearly in the orientation of NW-SE and E-W and were emplaced into the Upper Cretaceous and/or Eocene volcanic and sedimentary rocks. Petrographically, the studied monzonitic plutons are compositionally fine to medium grained monzonite, monzodiorite and subordinate quartz-monzonite. They consist of plagioclase (An_35-67), K-feldspar (Or_61-96), quartz, clinopyroxene (Wo_28-49En_35-51Fs_10-25), biotite (Mg#: …

Evaluation Of Thrace Region Fine Coal Tailings, Murat Olgaç Kangal, Mustafa Özer, Fırat Burat, Soner Akin

Bulletin of the Mineral Research and Exploration

The 79.9% of lignites in Turkey possesses a calorific value lower than 2500 kcal/kg. In order to reduce the energy dependence of the country, it would be right to evaluate these lignite reserves of 11.8 billion tons by effective coal preparation methods and use them with clean coal combustion systems together with developing technology. A typical coal preparation plant produces material within a ratio of 20% of the feed coal below 0.5 mm. Generally, due to the high cost, the gain of the fugitive coal in the product under this size is not preferred but this size group can be …

Petrography, Mineral Chemıstry And Crystallizatıon Conditions Of Cenozoic Plutonic Rocks Located To The North Of Bayburt (Eastern Pontıdes, Turkey), Abdullah Kaygusuz, Cem Yucel, Mehmet Arslan, Ferkan Sipahi, Irfan Temizel, Gokhan Cakmak, Z. Samet Guluglu

Bulletin of the Mineral Research and Exploration

The Eastern Pontides comprises of many intrusive bodies varying in composition, size and age from Paleozoic to Cenozoic. Those of especially Cenozoic aged ones are commonly observed in the southern part while are rarely exposed in the northern part of the Eastern Pontides. In this study, the petrographical and mineral chemistry properties of Çiçekli, Somarova, Sorkunlu, Şaşurluk, Aydıntepe, Kemerlikdağı and Pelitli plutons located to the north of Bayburt area are determined, and the crystallization conditions of the studied bodies were estimated by means of thermobarometer calculations. The studied plutons extend mostly NE-SW directions and are approximately ellipse in shapes. The …

An Ore Adit Planning With The Help Of Three Dimensional Ore Body Modeling: A Case Study From Çulfa Çukuru Pb-Zn-Cu-Ag Deposit, Sinan Akiska, Elif Akiska

Bulletin of the Mineral Research and Exploration

Çulfa Çukuru Pb-Zn-Cu-Ag mineralization has occurred along the metamorphic and metamorphic-dacitic volcanic rock contacts of the Sakarya zone on the Biga Peninsula. The base metal mineralization (Pb-Zn-Cu-Ag±Au) developed along the contact and fracture planes of these rocks can be observed as veins, lenses and disseminated ore geometries in the calc-silicate rock assemblages. Base metal mineralizations are mainly controlled lithologically and are generally associated with recrystallized limestones. In this study, the surface and the subsurface were modeled using the topographical data and the geochemical data (%Pb and %Zn) collected from 42 boreholes of Çulfa Çukuru which is located 20 km South-Southeast …

Optimization Of Some Parameters On Desulfurization Process Of Muğla Yatağan Bağyaka Lignite By Ultrasonic Waves, İlkay Ünal Sansar

Bulletin of the Mineral Research and Exploration

In this study, the desulfurization process developed using ultrasonic waves for Muğla Yatağan Bağyaka lignite had the optimum conditions for parameters affecting the ash and sulfur removal potentials determined with the Surface Response Method and a model created. The process parameters to obtain optimum desulfurization and ash removal were chosen as the ultrasonic treatment time, solid content, concentration of chemical reactive (H₂O₂) and reactive volume, and the optimum values were determined. Using this data with the aid of the Design Export 7.0 program, the regression model was found as a second degree polynomial equation. The coefficients …