Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Geochemistry (9)
- Organic Geochemistry (3)
- Crustal contamination (2)
- Eocene (2)
- Iran (2)
-
- Organic Matter (2)
- Organic Petrography (2)
- Partial melting (2)
- Petrogenetic modeling (2)
- Turkey (2)
- - (1)
- A-type granite (1)
- Acacia (1)
- Adakite (1)
- Alibaltalu (1)
- Alkaline (1)
- Anhydrite (1)
- Ankara (1)
- Anomaly distribution (1)
- Anoxic (1)
- Araklı-Trabzon (1)
- Aşkale (1)
- Bingöl Karlıova (1)
- Biogeochemistry (1)
- Biomarkers (1)
- Bituminous (1)
- Bituminous Marl (1)
- Bituminous Rock (1)
- Bituminous Shale (1)
- Boiling (1)
Articles 1 - 30 of 70
Full-Text Articles in Earth Sciences
Accurate Whole-Rock Geochemistry Analysis By Combined Icp-Oes And La-Icp-Ms Instruments, Gönenç Göçmengi̇l, Fatma Şi̇şman Tükel, Fulya Uzun, Marcel Guillong, İsak Yilmaz, Namık Aysal, Nurullah Hani̇lçi̇
Accurate Whole-Rock Geochemistry Analysis By Combined Icp-Oes And La-Icp-Ms Instruments, Gönenç Göçmengi̇l, Fatma Şi̇şman Tükel, Fulya Uzun, Marcel Guillong, İsak Yilmaz, Namık Aysal, Nurullah Hani̇lçi̇
Bulletin of the Mineral Research and Exploration
ICP-OES and LA-ICP-MS instruments routinely used to assess the geochemical properties of the various natural and synthetic materials. In this contribution, the analytical routines and method development procedures of the ICP-OES and LA-ICP-MS facilities installed at the İstanbul University-Cerrahpaşa Geological Engineering Department, Geochronology and Geochemistry Laboratory have been evaluated using well-known international rock standards. Sample preparation techniques, method development, experimental setup and measurement conditions for the both ICP-OES and LA-ICP-MS instruments were discussed and specific analyze results of NIST SRM 614, BCR-2, AGV-2, BCR-2G and AGV-2G were evaluated. Flux-free USGS glass standards were produced by in-house techniques and flux-bearing glasses …
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
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.
Usability Value Of The Yenicekale Formation Exposure Around The Pazarcık (Kahramanmaraş) As A Cement Raw Material, Güldemin Darbaş, Fatma Bayrak, Ali Gürel
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 …
Geochemistry Of Miocene Evaporites From The Aşkale (Erzurum, Eastern Turkey) Area: Constraints For Paleo-Environment, Emel Abdi̇oğlu Yazar, Mehmet Arslan, Cahit Helvaci, İbrahim Gündoğan, İrfan Temi̇zel, Didem Aydin Çakir
Geochemistry Of Miocene Evaporites From The Aşkale (Erzurum, Eastern Turkey) Area: Constraints For Paleo-Environment, Emel Abdi̇oğlu Yazar, Mehmet Arslan, Cahit Helvaci, İbrahim Gündoğan, İrfan Temi̇zel, Didem Aydin Çakir
Bulletin of the Mineral Research and Exploration
The Aşkale sub-basin hosts Early Miocene evaporites intercalated with clastic sediments and carbonates. Gypsum- and anhydrite-rich evaporite samples are characterized by high CaO and SO4 contents, and low Na2O, K2O, MgO, and B contents. The Sr contents are 228 - 13,100 ppm in evaporite samples, 169 - 992 ppm in claystone, 181 - 60,090 ppm in marl, and 15,150 ppm in limestone. All the samples are also characterized by enrichment in light rare earth elements (REE) with LaN / LuN = 0.667 - 4.243 and have variable CeN / Ce* (0.823 - 1.353) ratios. Measured EuN / Eu* values of …
Organic Geochemical Characteristics, Depositional Environment And Hydrocarbon Potential Of Bituminous Marls In Bozcahüyük (Seyitömer/Kütahya) Basin, Fatih Büyük, Ali Sari
Organic Geochemical Characteristics, Depositional Environment And Hydrocarbon Potential Of Bituminous Marls In Bozcahüyük (Seyitömer/Kütahya) Basin, Fatih Büyük, Ali Sari
Bulletin of the Mineral Research and Exploration
In this study, the geochemical properties, sedimentation conditions and hydrocarbon potential of the bituminous marls, having quite rich organic carbon content (average 9.27% TOC), composed of gray-green colored, dominant marl lithology with marl-claystone intercalation in the Bozcahüyük (Seyitömer/Kütahya) Basin has been evaluated. In this context, Rock-Eval pyrolysis, Gas Chromatography (GC), Gas Chromatography-Mass Spectrometry (GC-MS) and Modified Fischer Assay (MFA) analyses of the samples taken from the study area were performed and their organic facies have been evaluated. The marls have an excellent source rock characteristics, and include kerogen predominantly as Type I and rarely as Type II. The precipitation of …
Investigation Of The Paleodepositional Environment Of The Middle Miocene Aged Organic Matter Rich Rocks (Tavas/Denizli/Sw Turkey) By Using Biomarker Parameters And Stable Isotope Compositions (¹³C And ¹⁵N), Demet Banu Koralay
Bulletin of the Mineral Research and Exploration
The study area is located 45 km south of Denizli. The purpose of this study is to identify the organic geochemical properties and paleo depositional environment of organic matter rich rocks from Tavas (Denizli/SW Turkey). For this purpose, total organic carbon (TOC, wt.%) and pyrolysis, n-alkane, isoprenoid, sterane, terpane and aromatic hydrocarbon parameters have been investigated of the studied samples. In addition, scanning electron microscopy (SEM) and stable isotope (δ¹³C and δ¹⁵N) investigations were also carried out. Organic matter rich rocks which have type III kerogen have got 25.80 and 44.00 wt.% TOC content. Hydrogen index (HI, 73 and 120 …
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, …
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 …
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, …
Geochemistry And Tectonic Signifi Cance Of The Ophiolitic Rocks Of The Yarpuz-Kaypak (Amanoslar, Osmaniye) Area, Tamer Rizaoğlu, Utku Bağci, Osman Parlak
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 …
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
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 …
Geochemical Characteristics Of Sabalan Volcanic Rocks In Northwestern Iran, Reza Fahim Guilany, Ali Darvishzadeh, Seyed Jamal Sheikhzakariaee, Mansour Vosoughi Abedini
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. …
Geochemical And Petrologic Evolution Of Otlakbaşı Basaltic Volcanism To The East Of Lake Van, Vural Oyan
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 …
Geochemical Characteristics Of Gabbroic Rocks In Zyarat In North East Of Iran, Ghassem Azi̇zzadeh, Mostafa Raghi̇mi̇, Seyed Jamal Shei̇khzakari̇aee, Aziz Rahi̇mi̇ Chakdel
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
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 (An35-67), K-feldspar (Or61-96), quartz, clinopyroxene (Wo28-49En35-51Fs10-25), biotite (Mg#: …
Separation Of Geochemical Anomalies Using Inverse Distant Weighting (Idw) And Concentration-Area (C-A) Fractal Modeling Based On Stream Sediments Data In Janja Region, Se Iran, Marzieh Hosseininasab, Ali Akbar Daya
Separation Of Geochemical Anomalies Using Inverse Distant Weighting (Idw) And Concentration-Area (C-A) Fractal Modeling Based On Stream Sediments Data In Janja Region, Se Iran, Marzieh Hosseininasab, Ali Akbar Daya
Bulletin of the Mineral Research and Exploration
In this study, the Inverse Distant Weighting (IDW) and the Concentration –area (C-A) fractal methods were used for identifi cations of geochemical anomalies in Janja region, SE Iran. Eight elements (Au, Cu, Mn, Zn, Fe, As, Mo, and Pb) from 300 stream sediment samples were used. The studied area was gridded by 250 m×250 m cells. Estimation of unsampled locations were carried out by inverse distant squared weighting (IDWS) method. Geochemical maps were generated. Log- log plots of cumulative frequency of elemental concentrations versus related areas were constructed. Threshold values were obtained by fi nding break points in the log-log …
Use Of Moran’S I And Robust Statistics To Separate Geochemical Anomalies In Jiurui Area (Southeast China), Thanh Nguyen Ti̇en
Use Of Moran’S I And Robust Statistics To Separate Geochemical Anomalies In Jiurui Area (Southeast China), Thanh Nguyen Ti̇en
Bulletin of the Mineral Research and Exploration
Separation of geochemical anomalies from background plays an important role in the study of exploration geochemistry. The limitations of commonly used methods are not taken into account spatial correlation, variability and the unsatisfactory of the statistical assumption of the normality of geochemical data. For solving these limitations, an indirect method for the separation of geochemical anomalies is proposed based on anomaly separation of local Moran’s Ii values using robust statistics in this study. The experiment was carried out using 1481 samples collected from Jiurui copper prospect (southeast China). The steps for the anomaly separation are (i) spatial association and variability …
Whole Rock Geochemistry And Tectonic Setting Of Jurassic Aged Lisar Granite, Talesh Mountains, North Iran, Mohssen Moazzen, Roghieh Bozorg Seghi̇nsara, Hossein Shei̇khi̇ Kari̇zaki̇, Mohsen Pourkermani̇, Afshin Ashja Ardalan
Whole Rock Geochemistry And Tectonic Setting Of Jurassic Aged Lisar Granite, Talesh Mountains, North Iran, Mohssen Moazzen, Roghieh Bozorg Seghi̇nsara, Hossein Shei̇khi̇ Kari̇zaki̇, Mohsen Pourkermani̇, Afshin Ashja Ardalan
Bulletin of the Mineral Research and Exploration
The Late Jurassic aged Lisar granite in North Iran is in tectonic contact of the form of thrust and strike slip faults with Upper Cretaceous sandy limestone and is covered by Paleogene polygenetic conglomerate in the Talesh Mountain at the western continuation of the Alborz range. The rock samples of the granite are pink coloured and coarse-gained with K-feldspar, quartz, plagioclase, biotite and amphibole. The Lisar granite is more likely emplaced in an extensional environment indicated with numerous space filling silica-rich aplitic veins in the rocks. The granite samples are moderately altered and feldspars are changed to sericite and clay …
Spatial Cluster And Outlier Identification Of Geochemical Association Of Elements: A Case Study In Juirui Copper Mining Area, Thanh Nguyen Ti̇en, Tuyen Vu Danh, Hung Tri̇nh Le Hung, Hang Nguyen Thi̇ Le Hang
Spatial Cluster And Outlier Identification Of Geochemical Association Of Elements: A Case Study In Juirui Copper Mining Area, Thanh Nguyen Ti̇en, Tuyen Vu Danh, Hung Tri̇nh Le Hung, Hang Nguyen Thi̇ Le Hang
Bulletin of the Mineral Research and Exploration
Spatial clusters and spatial outliers play an important role in the study of the spatial distribution patterns of geochemical data. They characterize the fundamental properties of mineralization processes, the spatial distribution of mineral deposits, and ore element concentrations in mineral districts. In this study, a new method for the study of spatial distribution patterns of multivariate data is proposed based on a combination of robust Mahalanobis distance and local Moran’s Ii. In order to construct the spatial matrix, the Moran’s I spatial correlogram was first used to determine the range. The robust Mahalanobis distances were then computed for an association …
Depositional Environment And Organic Geochemical Characteristics Of Lower Eocene Bituminous Rocks, In The Kürnüç/Göynük-Bolu Area, Ali Sari, Pelin Akkaya, Ekin Ozakar
Depositional Environment And Organic Geochemical Characteristics Of Lower Eocene Bituminous Rocks, In The Kürnüç/Göynük-Bolu Area, Ali Sari, Pelin Akkaya, Ekin Ozakar
Bulletin of the Mineral Research and Exploration
In this study, dark gray and dark brown colored, organic-carbon rich bituminous rocks (bituminous marl and bituminous shale) exposing around the Kürnüç area (Göynük, Bolu) are investigated by means of organic geochemical characteristics. In this respect, rock lithologies, depositional environments, rock source potential, kerogen and organic maturity types and hydrocarbon generation potentials of bituminous rocks were determined. For this reason, pyrolysis (Rock Eval–VI) analysis, gas chromatography (GC) and gas chromatography-mass spectrometer (GC-MS) analyses were carried out. In addition, spore color index (SCI) was determined with organic petrographic method and stable carbon analysis (δ13C) of the samples were also conducted. Lithology …
Delineation Of The Cr Mineralization Based On The Stream Sediment Data Utilizing Fractal Modeling And Factor Analysis In The Khoy 1:100,000 Sheet, Nw Iran, Somayeh Momeni̇, Seyed Vahid Shahrokhi̇, Peyman Afzal, Behnam Sadeghi̇, Taher Farhadi̇nejad, Mohammad Reza Ni̇kzad
Delineation Of The Cr Mineralization Based On The Stream Sediment Data Utilizing Fractal Modeling And Factor Analysis In The Khoy 1:100,000 Sheet, Nw Iran, Somayeh Momeni̇, Seyed Vahid Shahrokhi̇, Peyman Afzal, Behnam Sadeghi̇, Taher Farhadi̇nejad, Mohammad Reza Ni̇kzad
Bulletin of the Mineral Research and Exploration
Fractal methods are regarded as a highly efficient method for more accurate separation of boundaries between mineralized zone in shallow and deep studies. In this research, concentration-number (C-N) and concentration-area (C-A) fractal methods were used in order to identify promising areas of the elements like Cr, Co and Ni in the Khoy 1:100,000 geological mapping sheet, NW Iran. The factor analysis was performed on the elements, and factors, which were related to the elements, were isolated and studied by both fractal methods. The current geological locations of the extreme anomalies were investigated and the results showed a very close relationship …
Element Enrichments In Bituminous Rocks, Hatildağ Field, Göynük/Bolu, Ali Sari, Murad Çi̇lsal, Şükrü Koç
Element Enrichments In Bituminous Rocks, Hatildağ Field, Göynük/Bolu, Ali Sari, Murad Çi̇lsal, Şükrü Koç
Bulletin of the Mineral Research and Exploration
In this study, element enrichments in bituminous rocks (bituminous shale, bituminous claystone and bituminous marl) of the Kabalar Formation in the Hatıldağ field in Göynük town of the city of Bolu are investigated and their economic potential is discussed with regard to being a mineral deposit. Element analysis was conducted with ICP-ES (ICP emission spectrometry) and ICP-MS (ICP mass spectrometry) techniques. Organic carbon content in rocks was analyzed with Rock-Eval VI device. In pyrolysis analysis conducted on a total of 28 bituminous rocks that are collected from the Kayalık Dere measured stratigraphic section, Corg minimum and maximum are 0.40 %wt …
Halloysite Intercalation Of Northwest Anatolia, Bülent Başara, Saruhan Saklar
Halloysite Intercalation Of Northwest Anatolia, Bülent Başara, Saruhan Saklar
Bulletin of the Mineral Research and Exploration
In this study, the representative samples were taken from the halloysite deposits located in Çanakkale-Balıkesir regions in the northwestern Anatolia. At first, the dehydration temperatures of the samples were determined after the sample preparation and characterization studies. It was found that halloysite samples start to loose their interlayer waters at 50°C and goes up to 70°C. The intercalation studies were carried out on the dehydrated samples by using ethylene glycol, potassium acetate, dimethyl sulfoxide and formamide. Although the negative results by ethylene glycol and potassium acetate, the satisfactory results were obtained by dimethyl sulfoxide and formamide. It is undertood that …
Trace/Heavy Metal Accumulation In Soil And In The Shoots Of Acacia Tree, Gümüfihane-Turkey, Alaaddin Vural
Trace/Heavy Metal Accumulation In Soil And In The Shoots Of Acacia Tree, Gümüfihane-Turkey, Alaaddin Vural
Bulletin of the Mineral Research and Exploration
In this study, heavy metal/trace element accumulation was investigated in soils along the
road passing through Gümüshane city center and shoots of 1-2 years of acacia trees
(Robiniapseudoacacia L.) grown in these soils. Heavy metal contents in soils and plants
were analyzed by Enrichment Factor (EF), Geo-accumulation index (Igeo) parameters,
and by Bio Accumulation Factor (BAF), respectively. According to geo-accumulation
index (Igeo) data, it is seen that the soil was unpolluted in terms of Cr, Co, Cu, Rb, Sr;
unpolluted to moderately polluted in terms of V, Ni and Zn; moderate to excessively
polluted in terms of As, and moderate …
Geochemical Characteristics Of Laterites: The Ailibaltalu Deposit, Iran, Ali Abedini, Ali Asghar Calagari, Khadijeh Mikaeili
Geochemical Characteristics Of Laterites: The Ailibaltalu Deposit, Iran, Ali Abedini, Ali Asghar Calagari, Khadijeh Mikaeili
Bulletin of the Mineral Research and Exploration
Alibaltalu laterite deposit is located ~20 km northeast of Shahindezh, south of West-Azarbaidjan
province (NW of Iran). This deposit is developed as stratiform lenses along the boundary of
Elika dolomites (Triassic) and Shemshak sandstones (Jurassic). The distribution fashion of
minerals such as boehmite, diaspore, kaolinite, muscovite-illite, rutile, anatase, hematite and
goethite in this deposit was accompanied by the development of four types of ore facies: (1)
ferrite; (2) laterite; (3) bauxitic kaolinite; and (4) kaolinitic bauxite. Petrographically, the ores
show conglomeratic, rounded-granular, veinlet, colloform, pelitomorphic, pseudo-porphyritic,
nodular, and spongy textures. Comparison of distribution pattern of elements along a selective
profile …
Organic Geochemical And Petrographic Properties Of Hazro Dadaş (Di̇yarbakir) Coals, Orhan Kavak, Selami Toprak
Organic Geochemical And Petrographic Properties Of Hazro Dadaş (Di̇yarbakir) Coals, Orhan Kavak, Selami Toprak
Bulletin of the Mineral Research and Exploration
This study was carried out in Hazro-Dadaş (Diyarbakır) region which owns the only coal basin in the area. Chemical, petrographic analysis and organic geochemical evaluations of the Permian aged coals were taken into consideration. Coal quality investigation along with proximate (moisture, volatile matter, fixed carbon, ash) and elemental analyses (C, H, O, and S, N) were performed and revealed. The huminite reflectance of organically abundant matter and coal levels were found to be between 0.458 and 1.141 %. This parameter complies with fluorescence colors, calorific value (average original 3165 – 3432 Kcal/kg) and average Tmax (418 oC). Hasbro coals show …
Petrogenetic Characteristics Of Oyaca – Kedi̇kayasi – Boyalik Adakites In Sw Ankara (Central Anatolia, Turkey): Evidence For Slab Melt Metasomatism, Pınar Şen, Erdal Şen
Petrogenetic Characteristics Of Oyaca – Kedi̇kayasi – Boyalik Adakites In Sw Ankara (Central Anatolia, Turkey): Evidence For Slab Melt Metasomatism, Pınar Şen, Erdal Şen
Bulletin of the Mineral Research and Exploration
The Early Miocene Oyaca, Kedikayası and Boyalık dacites, situated approximately 50-60 km southwest of Ankara have affinities similar to adakitic rocks. They have porphyritic texture with a variable amount of plagioclase feldspar, hornblende and lesser biotite phenocrysts and a groundmass of plagioclase and quartz microcrysts. They have high Sr/Y (55-79 ppm) and (La/Yb)n (21-32 ppm) ratios, and low Y (10-19 ppm) and heavy rare earth element contents. According to their SiO2 (62.3-69.70 % wt.) and MgO (0.62-2.23 % wt) contents, they are referred to as high silica adakites, indicating the effects of slab-derived melts in their genesis. The adakites in …
Hydrogeochemical And Isotopic Investigation Of Nasrettin Hoca Springs, Eski̇şehi̇r, Turkey, Mehmet Çeli̇k, Uğur Erdem Dokuz, Pakize Elif Türköz, Özlem Güllü, Şebnem Arslan
Hydrogeochemical And Isotopic Investigation Of Nasrettin Hoca Springs, Eski̇şehi̇r, Turkey, Mehmet Çeli̇k, Uğur Erdem Dokuz, Pakize Elif Türköz, Özlem Güllü, Şebnem Arslan
Bulletin of the Mineral Research and Exploration
No abstract provided.
Organic Geochemical And Petrographi̇cal Characteristics Of Karliova Halifan (Bingol) Coals, Orhan Kavak, Selami Toprak
Organic Geochemical And Petrographi̇cal Characteristics Of Karliova Halifan (Bingol) Coals, Orhan Kavak, Selami Toprak
Bulletin of the Mineral Research and Exploration
In this study, petrographic and organic geochemical characteristics of the Tertiary Karlıova-Halifan coals (Bingöl) were investigated. Determination of coal quality was based on chemical (moisture, volatile matter, fixed carbon, ash) and elemental analyses (C, H, O, S, N). The values of the huminite reflectances in organic matter-rich coal levels change between 0.368 and 0.573 %, which correspond to low maturity levels. These parameters are in good aggrement with their fluorescence colors, calorific value (average original-2266, dry-3177 Kcal/kg, upper calorific value) and average Tmax (417oC) values. The organic material in studied coals show low grade transformation due to low lithostatic pressure. …