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Showing 101-150 of 234 records
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

GEOLOGY OF THE YANIKLAR-CIFTLIK-KARAGEDIK (FETHIYE-MUGLA,TURKEY) AREA AND MINERALOGICAL, PETROGRAPHICAL AND GEOCHEMICAL CHARACTERISTICS OF CHROMITE OCCURRENCES

(SGEM Scientific GeoConference, 2009, M. M. Karadag, M. S. Karagoz, A. Ozturk)

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The study area is located at the southwest end of Taurid Orogenic belt, around YanД±klar\cCiftlik- Karagedik (Fethiye-MuДџla) and covers approximately an area of 77 km2. In the study area magmatic and sedimentary rocks formed in Mesozoic-Senozoic period crop out. Eventhough the Upper Triassic-Low Jurassic Kayak\"oy formation represented by dolomite, cherty dolomite and dolomitic limestone occurs at the basement of the study area. This unit lies tectonically on the Upper Jurassic-Lower Cretaceous BabadaДџ formation...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

MASSIF ROCK AND EFECT GLIVAGE ON STABILITY TUNNEL OF KRIVELJ’S RIVER IN BOR

(SGEM Scientific GeoConference, 2009, S. Krstic, M. Ljubojev, V. Ljubojev, M. Bugarin)

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Details presents in the paper realize at collaboration the Ministry of Science and Technological Development on project No 17004 R. Serbia. Presented carakterisics clivage in aspect on massif rock research in drillholes B-1k, B-2k, B-3k, B-4k and B-5k. Evaliation of rock stability, in which will be place tunnel axis, took from prospecting Krivelj`s River. Iinvestigations are: structural characteristicsa of rock massif, degree of disintegration, alteration degreee, fracture degreee and physico-mechanical characteri...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

MIРЎRO AND NANOMINERALOGICAL STUDIES OF GOLD-BEARING ORES OF KAZAKHSTAN

(SGEM Scientific GeoConference, 2009, Рђ. Baibatsha)

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Nowadays, the problem of fine micro-and nano-scale В«invisibleВ» gold, remains urgent, with the substantial loss of metal during enrichment of sulphide ores. Mineralogical studies show that the vast majority of native gold in sulphides is in the form of fine, dust and thin particles, with a subordinate amount is very small and petty. According to the confirmed reserves of gold, Kazakhstan is among the top ten countries of the world. The considered balance stock of deposits is 196 (126 autochthonous, 47 complex, 23...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

QUARTZ SAND DEPOSITS AND THEIR SUITABILITY FOR USAGE IN DIFFERENT INDUSTRIAL BRANCHES: THE EVALUATION OF BARTIN – CAKRAZ DEPOSITS IN NORTHWESTERN TURKEY

(SGEM Scientific GeoConference, 2009, T. A. Kepekli, M. Kumral, M. Budakoglu, F. Yavuz, E. Yilmaz)

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\cCakraz district of Bartın province in northwestern Turkey contains wide deposits of quartz sand. Regional geology consist of Lias aged carbonated claystones of Himmetpaşa formation, Barremian aged limestone, dolomitic limestones of Zonguldak formation and Aptian aged sandstone – carbonated sandstones of Kilimli formation. \cCakraz district quartz sand deposits are hosted in Himmetpaşa formation and usually occur as wide lenses in the host rocks. In this study major and minor element chemical analysis, petro...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

SOLVOTHERMAL PREPARATION AND CHARACTERIZATION OF TIO2 PILLARED SAPONITE

(SGEM Scientific GeoConference, 2009, A. Nikolopoulou, D. Papoulis, P. TSOLIS- Katagas, D. Panagiotaras, G. H. Kacandes)

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The clay fraction of saponite-rich samples from western Macedonia, Greece was used for the preparation of TiO2 –pillared saponite. Nanocomposites of titania saponite were prepared by solvothermal reaction using water and ethanol as the solvent, hexamethylene tetramine as the precipitant and titanium trichloride as the precursor. Phase composition, particle morphology, element content and physical properties were characterized using X-Ray Diffraction (XRD), Scanning Electron microscopy with Microanalysis (SEM-EDS...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

SOME COAL RELATED CLAY OCCURRENCES: GEOCHEMICAL, MINERALOGICAL PROPERTIES AND USAGE OF CLAY POTENTIALS IN BIGA PENINSULA, TURKEY

(SGEM Scientific GeoConference, 2009, M. Maral, F. Suner, D. Maral, . A. Kepekli)

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This study focuses on the geochemical and mineralogical compounds of clay occurrences that had been interbedded low rank coals in Biga Peninsula, Turkey. The usages of these clay formations were also studied. Clay occurrences were formed and alternated along with Tertiary lignite seams in the peninsula where is one of the basic metallic and industrial mineral potential regions in Turkey. Chemical and mineralogical analyses were performed on thirteen clay samples from different lignite beds. The XRD analyses show t...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

SPONTANEOUS COMBUSTION OF LIGNITE IN BARDH MIRASH MINES IN KOSOVO

(SGEM Scientific GeoConference, 2009, H. Hajra, N. Peci, S. Mulaj)

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Kosovo is rich in coal resources / reserves. There are about 14 billion tones coal resources in Kosova. The coal in Kosova is used mainly in power (electricity) generation and less amount for heating. Kosovo coal is lignite type. Exploitation of coal is being donning in two open pits Bardh and Mirash. There is also a project for building of the new power plant (capacity 2000 MW). For this, supply of coal should be made by the new mine - Sibovci. The underground mining was abandoned in 1922. Now it is the surface m...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

STATISTICAL ANALYSIS OF STREAM SEDIMENT SAMPLING IN VOLCANIC COMPLEX MITROVICE – SAMADREXHE FOR SELECTED ELEMENTS

(SGEM Scientific GeoConference, 2009, N. Peci, S. Mulaj, S. Avdullahi, B. Baruti)

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Kosovo has a varied geology that ranges in age from the Neo-Proterozoic to the Holocene. The geology is characterized by substantial structural features on a regional scale, including, normal faulting and thrusting. The area belongs to the External Vadar Zone (EVZ). The Volcanic complex Mitrovic\"e – Samadrexh\"e is dominated by Jurassic and Neogene volcanic rocks from several eruption centres, interlayered by metamorphic and sedimentary units. The survey area was determined in the adjacent area of the known Pb ...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

THE CAPTURE OF THE MOON BY THE EARTH AROUND 40,000 YEARS BEFORE PRESENT FROM THE GEOLOGICAL PERSPECTIVE

(SGEM Scientific GeoConference, 2009, M. Ticleanu, N. Ticleanu, R. Nicolescu, A. Ion, GH. Borcan)

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A revaluation of the important of the climatic variations on the Earth in the last 120,000 years (Quaternary palaeoclimatological data) led us to render evident a special geodynamic moment around 40,000-39,000 years (ka) before present (BP). We have correlated this moment with a severe change of the precessional year duration caused by a modification of the rotational axis position under the influence of a cosmic body. We consider this cosmic event to be the capture of the Moon (by the Earth), former first planet ...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

THE FLUVIAL RELIEF IN THE NORTH-EAST PART OF KOSOVA

(SGEM Scientific GeoConference, 2009, S. Bulliqi, F. Isufi, G. Gashi, I. Ramadani)

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The investigation of the fluvial relief of the north-east side of Kosovo shows a particular scientific and practice interest, so our purpose is to give a circumstantial and full view of morphology and morphogenesis of this part during the evolution phases of its development. In the complex relief of this part, a very important part is the fluvial one, too, so, if we see it by its enlargement, it is ranged immediately after the structural relief, which is regarded to the fact that the fluvial morphogenesis phenomen...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

THE PLEISTOCENE RODENTS FROM CENTRAL ANATOLIA

(SGEM Scientific GeoConference, 2009, F. S. Alpaslan)

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The research area is the Esenyurt village in the 15 km south of Sivas City and lies in the section of i37c1 of the scale of 1/25.000. The small mammals group extracted from Esenyurt locality has been taken from the clay stone layers. Rodentia fossils aged Pleistocene have been examined taxonomically and the combination of this fauna group has been interpreted biochronologically, paleobiologically and paleoechologically.

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

USAGE POTENTIAL AND GENERAL PROPERTIES OF BENTONITE OCCURRENCES IN TURKEY

(SGEM Scientific GeoConference, 2009, D. Maral, M. Maral, A. Kepekli)

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A summary of abundance, quality and usage areas of the known bentonite occurrences in Turkey has been explained for this study. Bentonite that is one of the most important and abundant clays of Turkey has lower cost in comparison to other raw materials. Turkey has significant resources of bentonite that have been reported approximately 370 million tons base reserve. Also Turkey is one of the leading producers with 950 000 tons per year. Lower cost of bentonite in comparison to other raw materials for various usage...

Geology2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

WEATHERING AND ALTERATION IN TUZLA GEOTHERMAL FIELD: CORRELATION OF PETROGRAPHICAL WEATHERING PATTERNS WITH GEOCHEMICAL DATA, CANAKKALE – NORTHWESTERN TURKEY

(SGEM Scientific GeoConference, 2009, T. A. Kepekli, E. Bozkurtoglu, F. Suner)

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\cCanakkale district, Tuzla region in Turkey houses one of the major geothermal fields of Turkey. Tuzla geothermal field, with its 173 oC temperature is also an important site of weathering and alteration occurrence. Weathering and alteration develops in many different irregular forms and stages in the field. The regional geology consist of volcanics, such as rhyolites, latites, andesites and pyroclastics. Volcanics in the field had been weathered and altered in various stages. Gradual weathering from the outer wa...

Geology2009
8th International Scientific Conference - SGEM2008
Publication

3D MODELING OF DYKES IN SUNGUN PORPHYRY DEPOSIT THROUGH APPLYING INDICATOR KRIGING

(SGEM Scientific GeoConference, 2008, O. Asghari, A. Hezarkhani, V. Rafiee)

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Two major series of crosscutting dikes (Dk1a and Dk1b) are common in Sungun porphyry deposit. Those are varying compositionally from quartz monzo-diorite to granodiorite. About thirty percent of the sungun stock is filled by Dk1a and Dk1b dikes. Presence of dikes will cause lots of errors in copper content estimation, so determination of dikes is very important. Ten percent of dikes volume could be identified through drawing strings and correlation between boreholes. For estimating and determining the other part o...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

A STUDY ON SHEAR FLOCCULATION OF MAGNESITE SUSPENSIONS

(SGEM Scientific GeoConference, 2008, S. Duzyol, A. Ozkan)

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Shear flocculation characteristics of magnesite with sodium oleate as anionic surfactant have been investigated in this study. The effects of various parameters such as pH, stirring speed and concentration of sodium oleate on the shear flocculation of magnesite were determined. It was found that the shear flocculation of magnesite was not affected much by the pH changes of the suspension. However, the flocculation of magnesite showed strong dependences on stirring speed and surfactant concentration. By evaluation ...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

AN APPLICATION OF FUZZY SETS TO THE ROCK MASS RATING (RMR) SYSTEM USED IN ROCK ENGINEERING; A CASE STUDY IN IRAN

(SGEM Scientific GeoConference, 2008, M. Ataei, A. D. Besheli, F. Sereshki, M. Jamshidi)

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The First step in analysis of slope stability in open pit mines is punctual definition of rock mass characteristics. Several rock mass classification systems have been presented so far in the area of geomechanics. One of the most widely used rock mass classification systems are the geomechanics classification (RMR) by Bieniawiski. The RMR classification is based on the definition of classic membership functions. So characterization of rock masses and determination of their strength may involve some uncertainties d...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

AN EXAMPLE FOR THE VOLCANIC SECTION OF THE INTRAOCEANIC SUBDUCTION ZONE TYPE OPHIOLITE (KOMURHAN OPHIOLITE) FROM THE SOUTHEAST ANATOLIA (ELAZIG-TURKEY)

(SGEM Scientific GeoConference, 2008, T. Rizaoglu, O. Parlak, F. Isler)

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In this study, the volcanic rocks located in the South of Baskil (Elazig) town were investigated in terms of their geochemical, petrographical and geological charecteristics, for pointing out the relations of this unit with the late Cretaceous Komurhan ophiolite and Andean type arc magmatics (Baskil granitoid). The volcanic rocks crop out along an approximately east-west trending belt in the region. It is represented by alternations of volcanic and sedimentary rock units. The measured thickness of the volcanics in...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

APPLYING DISCRIMINANT ANALYSIS AND SGS TO SEPARATING ALTERATION ZONES WITHIN THE SUNGUN PORPHYRY COPPER DEPOSIT

(SGEM Scientific GeoConference, 2008, O. Asghari, A. Hezarkhani, V. Rafiee)

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In the detailed exploration and reserve estimation, with separating the alteration (as the controller of the grade) in ore reserve and estimating the reserve in each alteration, the estimation variance will decrease and the accuracy of the estimation will increase. This paper tries to quantify and separate the alterations using discriminant analysis, a multivariate statistical method, and distribute them through sequential gaussian simulation in the Sungun copper deposit. A simple linear discriminant function tran...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

DETERMINATION OF THE UNIAXIAL COMPRESSIVE STRENGTH OF COAL WITH INDIRECT TESTS

(SGEM Scientific GeoConference, 2008, N. Bilim, I. Ozkan)

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The uniaxial compressive strength (UCS) is one of the important input parameters used in rock engineering designs of underground spaces, or rock blasting, drilling, slope stability, excavation rate and many other civil and mining operations. Although, the method is relatively simple, it is time consuming and expensive; also, it requires well prepared rock cores. Therefore, indirect tests are often used to predict the UCS, such as Schmidt hammer, point load index and sound velocity. Besides, these indirect tests ca...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

DETERMINATIONS OF LIABLE FACTORES OF DUSTY IN SIDE AREA AND OUT SIDE AREA IN KEK - (ENERGY CORPORATION OF KOSOVA)

(SGEM Scientific GeoConference, 2008, H. Nuredini, I. Zeqiri, M. Hetemi, K. Zeqiri)

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Main objective in this study is research of dangerous dust in working area at the KEK, which inflict many professionals’ illnesses. This study will treat and determinate “Dangerous Coefficient” in duty of the working time, which will create fast monitoring condictions in the working area. In this case will be easy to take preventive actions with regards to procetions workers health.

Geology2008
8th International Scientific Conference - SGEM2008
Publication

DEVELOPMENT NEW SEDIMENT TRANSPORT EQUATION FOR FLUME

(SGEM Scientific GeoConference, 2008, N. Hadadin)

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Sediment transport rates are a function of flow hydraulics, bed composition, and upstream sediment supply. Open-channel flow problems are relatively more difficult to solve than those of closed-conduit because the shape and size of a natural channel vary in a wide range from rivulets to large rivers. While the artificial (manmade) channel has a regular geometric shape, the cross-sectional shape of natural channels may be very irregular. In a movable boundary channel the cross section undergoes deformation due to s...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

GEOLOGIC AND MINERALOGIC PROPERTIES OF BOR-ULUKISLA NEOGENE BASIN (NIGDE)

(SGEM Scientific GeoConference, 2008, T. Altay, M. C. Karakaya, A. Murat)

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Bor-UlukД±sla Basin is located in Central Anatolia, southeastern part of Tuz Golu Basin. Tertiary aged sedimentary, volcano-sedimentary and volcanic rock units outcrop at the investigation area. Neogene aged Bor-UlukД±sla Basin is a tectonically controlled graben basin and contains syngenetically deposited sediments. Outcropping Neogene sediments, composed of clastic, clayey, dolomitic, tuffitic, evaporitic and silicified rocks, overlie Paleocene-Eocene marine clastic rocks and Paleozoic metamorphic rocks. The Neo...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

GEOLOGICAL INVESTIGATION OF THE CARIKSARAYLAR - KOZLUCAY AREA (ISPARTA-TURKIYE)

(SGEM Scientific GeoConference, 2008, Y. Bozkir, A. Ayhan, F. Arik)

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The study area is located in southeastern part of Sultandaglari, 50 km to the northeast of Isparta. The geological units exposed in the area are: The Lower-Middle Cambrian Caltepe Formation, which comprises grey and pink coloured recrystallized limestone, nodular limestone, dolomitic limestone and dolomite, is the oldest unit. The Upper Cambrian - Lower Ordovician Seydisehir Formation conformably overlies the Caltepe formation and comprises green to brown coloured metasandstone, quartzite, phyllite, calcshists, sc...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

GEOLOGICAL SETTING AND PETROGRAPHICAL CHARACTERISTICS OF THE BOZKIR OPHIOLITIC MELANGE, BOZKIR (KONYA- TURKEY)

(SGEM Scientific GeoConference, 2008, A. Ozturk, M. M. Karadag, A. Ayhan, F. Arik)

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In the study area the lowermost unit is the autochthonous GeyikdagД± unit (Upper Cambrian-Lower Ordovician Seydisehir Formation, Upper Jurassic Hacialabaz formation, Upper Cretaceous Cokelen diabase and Upper Cretaceous Saytepe formation). The BolkardagД± unit (Devonian-Lower-Middle Carboniferous Hocalar formation, Upper Permian, Taskent formation and Jurassic-Upper Cretaceous SinatdagД± formation) rests allochthonously on the GeyikdagД± Unit. The Bozkir unit (Bozkir melange with ophiolite and (Mahmuttepe limeston...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

GEOLOGY AND MINERALOGY OF THE DOР ANHISAR CLAY BEDS (CENTRAL ANATOLIA, TURKEY)

(SGEM Scientific GeoConference, 2008, R. Aksoy, I. Ince, A. Bozdag, M. Y. Huseyinca)

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The geology and the mineralogy of the clay beds (Doganhisar clays) located southeast of Doganhisar (central Anatolia, Turkey) were studied. Rock units found in and adjacent to the Doganhisar clay beds include metamorphic rocks of pre-Triassic age of the Sultandaglari Massif, the Miocene Ayaslar Formation and the Pliocene Doganhisar Formation as well as alluvium The Lower (?)-Middle Cambrian-Lower Ordovician Caltepe Formation forming the base of the metamorphic rocks is composed of recrystallized limestone and dolo...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

GEOLOGY, MINERALOGY AND GEOCHEMICAL CHARACTERISTICS OF THE GOZECUKURU (KUTAHYA) As-Sb DEPOSITS, NW TURKEY

(SGEM Scientific GeoConference, 2008, F. Arik)

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The Goze\ccukuru As-Sb mineralization was occured in an area of 2,1 km2, which is located near the small town of Sahin Village, 22 km west of Kutahya. Low-grade metamorphic rocks (metasandstones, metaconglomerate, chalcshist, graphitic mikaschists, and micaschist and quartz schist) of Upper Paleozoic (Carboniferous- Permian) aged Sahin Formation form the basement. The rhyolitic and rhyodacitic tuffs of Middle-Upper Miocene aged TavsanlД± volcanites uncomformably covers to the Sahin Formation. The Upper Pliocene ag...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

GEOTECHNICAL PROPERTIES OF DOР ANHISAR CLAYS,CENTRAL ANATOLIA, TURKEY

(SGEM Scientific GeoConference, 2008, I. Ince, R. Aksoy, M. Y. Huseyinca)

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This study discusses the results of geotechnical investigation carried out on DoДџanhisar clays in Central Anatolia, Turkey, originated from the weathering of metamorphic basement rocks. The clays of this location constitute an interesting area for researchers due to their geology, thickness, and very high overconsolidation values. In the area, clay deposits are unusually thick, varying from 10 m to 60 m in thickness. For this study, geotechnical investigations were carried out with laboratory tests on disturbed a...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

INTERACTION MATRIX APPLICATION AT ERMENEK (KARAMAN) LIGNITE MINE

(SGEM Scientific GeoConference, 2008, M. K. Gokay, H. Erdogan, K. Dogan)

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This study includes the application of interaction matrix system given by Hudson in 1992 to underground coal mining conditions. Implication of interaction matrix was realized here at private company owned underground coal mine. After clear description of the interaction matrix and its properties, selected mine workers and engineers worked at the studied underground mine were asked to evaluate predefined 21 evaluation parameters. During the evaluation of the matrix, the parameters were evaluated to obtain critical ...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

LOWERING THE ESTIMATION VARIANCE BY LITHOLOGY AND ALTERATION SEPARATION

(SGEM Scientific GeoConference, 2008, O. Asghari, A. Hezarkhani, V. Rafie)

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In the detailed exploration and reserve estimation, with separating the alteration (as the controller of the grade) in ore reserve and estimating the reserve in each alteration, the estimation variance will decrease and the accuracy of the estimation will increase. In the other hand without any additional drilling, it is also possible to decrease the estimation variance by lowering the sill of variograms. In this method, we have categorized the data into different lithologies and different alterations such as skar...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

MAJOR, REE, TRT, LILE AND HFS ELEMENT BEHAVIOR IN THE ALTERATION OF THE KONYA VOLCANITES

(SGEM Scientific GeoConference, 2008, N. Karakaya, M. C. Karakaya)

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Mainly high-K, calc-alkaline, Late Miocene to Pliocene volcanic rocks cropped out of Konya area in Central Anatolia, Turkey. The volcanic rocks are predominantly andesitic to dacitic in composition and rarely basalt, basaltic andesite, basaltic trachyandesite and pyroclastics. Mineralogic compositions, major, trace and REE element composition of the investigated rock samples was analyzed. Kaolinite, illite, Ca-montmorillonite, alunite, jarosite, minamiite and silica polymorphs were formed by widespread and intense...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

MINING OF BROWN COAL AND DUMP RECLAMATION IN NORTH - WESTERN BOHEMIA

(SGEM Scientific GeoConference, 2008, M. Rehor, T. Lang, V. Ondracek)

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Nowadays the importance of brown coal as a raw material is caused by growing needs of power in the Czech Republic. It namely concerns the only major domestic fossil raw material without which our country would become fully depended on the import of energy resources. Over 70\% brown coal reserves have been exploited in the North- Bohemian Basin today. Opencast mining of brown coal naturally led to vast landscape damages. Therefore reclamation work has acquired great significance. Brown coal is mined in four general...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

NEOTECTONIC FEATURES OF THE CAVUSCUGOL GRABEN (CENTRAL ANATOLIA, TURKEY)

(SGEM Scientific GeoConference, 2008, M. Y. Huseyinca, R. Aksoy, I. Ince)

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The aim of this study is to elucidate the neotectonic characteristics of the \cCavuЕџcug\"ol graben. The Cavuscugol graben is 3-8 km wide 28 km long. It is a N-S trending actively evolving extensional structure containing infills of fluvial sediments of Pliocene- Quaternary age. The Cavuscugol graben is bounded on both sides by oblique-slip normal faults. These faults trend N-S and named as IlgД±n Fault on the west and Tekeler Fault on the east. The footwall side of the faults are composed of the pre-Late Cretaceo...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

PALEOSTRESS STUDIES BEFORE DIMENSIONAL STONE EXPLORATION

(SGEM Scientific GeoConference, 2008, S. Omidian, B. Oskooi, S. A. Koupai)

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Specific attention has been paid to methods of amelioration for exploration and increasing the efficiency due to importance of dimensional stones industry and its expanding position in non-petroleum export in Iran. Connected scientific management in this industry is essential for the growth of quality efficiency. In this study, one of the several points of view that should be entered in connected scientific management of quarry mines exploration is analyze. It is obvious that deep and lateral expansion of ruptures...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

PETROGRAPHIC AND GEOCHEMICAL CHARACTERISTICS OF DOLOMITES OF KIZILOREN FORMATION (KONYA, TURKEY)

(SGEM Scientific GeoConference, 2008, S. Dinc, H. Orhan)

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The Upper Triassic-Lower Jurassic KД±zД±loren formation outcroping around the KД±zД±loren mountain, 40 km to the west of Konya begin with dolomite at the base and, grades upward into calcitic dolomite, dolomitic limestone and limeston,. Dolomites are two types; mimetic and non-mimetic. In mimetic dolomit, pellet fossils, ooid and intraclast were poartially or totaly preserved. In non-mimetic dolomite, the depositional texture were totaly destroyed. It is composed of euhedral, hemihedral, dirty-brownish coloured, n...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

PHYSIOGRAPHIC REGIONS OF THE SEA FLOOR AND THEIR MINERAL POTENTIAL REGARD TO METAL CONCENTRATION PROCESS IN AQUEUS ENVIRONMENT

(SGEM Scientific GeoConference, 2008, M. Soleimani, R. Ahmadi, B. Jodeiri, N. Lotfi)

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Defining the mineral potential of the sea floor could be handled by different methods, but the prerequisites for each methods is to clear the conditions of precipitation environment such as physico – chemical conditions and also it depends on the type of precipitant. The appearance of any mineral in the sea floor strongly depends on the aqueous environment and the physical prosperities of the mineral. In this article, first of all, I considered the physiographic regions of the sea floor in entire the world, an a...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

QUARTZ (GLASS) SAND - THE BASIC RAW MATERIAL FOR GLASS-MAKING

(SGEM Scientific GeoConference, 2008, A. Grinc, J. Mikulenka, I. Petrovs)

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The most of the mineral raw materials mined out in the Slovak Republic need specific modifications, which are enabling for the next exploitations of raw materials in the other industries. This article provides description of the quartz sand, that are able to use as foundry or glass sand after proper modification. Of course, the sand is needed modify by the proper method, which could allow their use in melting, glass and in the other industry. In this article is provided short report of the most often exploited mod...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

SEDIMENTOLOGY OF BEYKOYU FORMATION (MIOCENE) AROUND BEYKOYU – KUSKUNCUK – GOKCEYAZI (EREGLI – KONYA - TURKEY)

(SGEM Scientific GeoConference, 2008, A. M. Ozkan)

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The basement of the investigated area consists of Upper Permian – Upper cretaceous aged the Bolkardagi Group and several formations situated in the Bolkardagi Unit, tectonostratigraphic units of the Taurus, viz., Paleocene – Lower Eocene aged the G\"uneydağı formation, and Upper Paleocene – Eocene aged the Halkapınar formation. The limestone of the Guneydagı formation is observed as a basement rock in the area, and is overlied with angular unconformity by Miocene aged the Beykoyu formation, which is made...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

SORBENTS OF NORTH-WESTERN BOHEMIA, THEIR UTILIZATION FOR RECLAMATION WORKS AND POSSIBILITIES OF SMECTITE STRUCTURE MODIFICATION

(SGEM Scientific GeoConference, 2008, T. Lang, M. Rehor, L. Zizka, V. Cablik)

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Clay sorbents from the North Bohemian Brown Coal Basin represent important but still somewhat neglected accessory raw material. Submitted paper is concerned with relation between mineral structure, sorptive efficiency and reclamation exploitation of these rocks. Characters and localities of main clay sorbents from the North Bohemian Brown Coal Basin are shortly evaluated in an introduction. In next part, methodology of mineralogy survey for these accessory raw materials is stated, it is based on diffract analyse w...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

STRATIGRAPHIC FEATURES AND GEOTECTONIC EVOLUTION OF THE SOUTH EDGE (NARMAN-OLTU-OLUR) OF EASTERN PONTIDS (NORTHEAST TURKEY)

(SGEM Scientific GeoConference, 2008, C. Bozkus, I. E. Kerey, G. Tuncer)

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The southern edge of Eastern Pontids is covered by rock units belonging to two distinct continental crusts that reunited through a Late Upper Cretaceous-Eocene suture zone. In the north of the Suture zone (Olur), Paleozoic aged acid magmatits (Permo- Carboniferous) constitute the continental crust basement. On this basement, there is uninterrupted marine sediment which has disconformably developed between Upper- Lias Late Cretaceous. These sediments have deposited under the conditions of Lias- Lower Malm basic vol...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

STRUCTURAL CRITERIA IN BUILDING ON HAZARDOUS AREAS ALONG THE BULGARIAN BLACK SEA COAST

(SGEM Scientific GeoConference, 2008, N. Zhechev)

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The construction boom along the Black Sea coast in Bulgaria made the contractors to seek sites near to precipices and landslide areas. Under these extreme geotechnical conditions, the construction has three basic aspects: 1/ Stability of slopes should be durably guaranteed; 2/ The connection between the leisure zone and the sea should be optimally designed, and 3/ The safety of people at the beach should be secured. A complex structural approach is necessary in order for the problems to be solved. It should includ...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

STUDY OF POROSITY AND PERMEABILITY OF AIR FILTER MATERIAL IN RESPIRATORY PROTECTION FILTERS

(SGEM Scientific GeoConference, 2008, C. G. Olmedo, E. Q. AragСѓn, J. G. Torrent, L. M. Pejic, C. F. RamСѓn)

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The objective is the study of filtering tissue permeability and the characterization by means of permeability tests, of the process of coal particles retention in breath protection filters. The porosity of a filter, defined as the ratio between the void volume inside its fibres and the total volume, is a static parameter that provides point source information about the initial conditions of the filtering tissue. When excessive deposition of particles on the fibres happens, there is an increase of resistance to the...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

SUPERGENE JAROSITE FORMATION WITHIN SMECTITE AND ILLITE HYDROTHERMAL ZONES FROM LIMNOS ISLAND, NORTHEAST AEGEAN SEA, GREECE

(SGEM Scientific GeoConference, 2008, D. Papoulis)

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Smectite and illite occurrences extended over an area of about 5 km2 in the Southern parts of Limnos, island, Northeast Aegean sea, Greece, were found and studied. The smectite as well as the illite occurrences are alteration products of volcanic rocks principally trachyandesites, dacites and dacitoids. The study of the thirty samples collected from five fault zones was carried out using XRPD, SEM, SEM-EDS, techniques and ICP bulk rock chemical analyses for major, trace and rare earth elements. The extended altera...

Geology2008
8th International Scientific Conference - SGEM2008
Publication

USING OF CONICAL GAUGES PROBE FOR MEASUREMENT OF STRESS CHANGES INDUCED BY PROGRESS OF LONG WALL

(SGEM Scientific GeoConference, 2008, L. Stas, K. Soucek, J. Knejzlik)

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A new device for stress tensor measurement is developing on base relief overcoring method applied on conical shaped borehole bottom. Developing of equipment has progressed to two parallel types: for measurement of total rock stress tensor by overcoring procedure and for monitoring of induced changes of rock stress tensor impressed with uderground human activity (progress of long wall face,\ldots). This second type of device has been used to long term monitoring of the stress – strain changes. A functionality of ...

Geology2008
7th International Scientific Conference - SGEM2007
Publication

A QUANTIFIED METHOD FOR SEPARATING THE ALTERATION ZONES IN PORPHYRY COPPER SYSTEMS (BASED ON THE FLUID INCLUSION DATA)

(SGEM Scientific GeoConference, 2007, O. Asghari, A. Hezarkhani)

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The Sungun porphyry copper deposit (PCD) is located in East Azarbaijan, in the NW of Iran. The Sungun porphyries occur as stocks and dikes ranging in composition from quartz monzodiorite through quartz monzonite. Four types of hypogene alteration are developed at Sungun, potassic, phyllic, propylitic and argillic. Based upon their phase content, four types of fluid inclusions are common at Sungun (1) vapor, mono-phase (2) vapor-rich, two-phase, (3) liquid-rich twophase, and (4) multi-phase. Halite is the principal...

Geology2007
7th International Scientific Conference - SGEM2007
Publication

APPLICATION OF GIS BASED MODELLING FOR STONE AGGREGATE POTENTIAL IN DALMATIA, CROATIA

(SGEM Scientific GeoConference, 2007, Z. Dedic, O. Hasan, S. Miko, B. Luksic, E. Kovacevic)

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The Dalmatian region is a karst region built of Mesozoic limestone and dolomites. In the four Dalmatian counties aggregates and natural stone is quarried at 155 sites and there are 73 abandoned sites. A GIS based model on map-correlation and map-integration processes was used in order to define relationships between spatial layers and combine predictor factors in supporting a hypothesis. The response variable is the set of point locations of current aggregate and natural stone quarries (termed training sites), and...

Geology2007
7th International Scientific Conference - SGEM2007
Publication

ASSESMENT OF DOLOMITE WALL FAILURES IN THE 6TH GOLBINI JAJARM BAUXITE MINE BY USING SMR CLASSIFICATION SYSTEM

(SGEM Scientific GeoConference, 2007, M. Ataei, K. Goshtasbi, R. Kalatehjary)

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The stability problems in 73 meters height of dolomite wall cause to starting an empirical estimation for early step of slope optimization. In this paper, three rock classification systems (RQD, RMR and SMR) are utilized for assessment of dolomite wall failures in the 6th Golbini Jajarm bauxite mine. The SMR (slope mass rating) geo-mechanics classification system, is adaptation of RMR (rock mass rating) for slopes. In first step, joint study and site investigation carried out for RQD (rock quality designation) and...

Geology2007
7th International Scientific Conference - SGEM2007
Publication

CHARACTERIZATION OF ALKALINE BASALTIC TUFFS AND THEIR APPLICATION IN THE SYNTHESIS OF CERAMIC AND GLASS CERAMIC MATERIALS

(SGEM Scientific GeoConference, 2007, S. Ergul, D.MAGALDI, G. Taglieri, M. Pelino, A. Karamanov)

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Alkaline basaltic tuffs, BT, from southern Turkey were characterized and used to obtain cheap sintered glass-ceramic and ceramic materials. The chemical and mineralogical compositions were analyzed by fluourescene spectrometry and X-ray diffraction analyses, respectively. The phase formations were studied by DTA, while the sintering behavior – by differentional dilatometer. The structure of the sintered samples was evaluated by pycnometric techniques and observed by SEM. Due to its high porosity and low crystall...

Geology2007
7th International Scientific Conference - SGEM2007
Publication

DETERMINATION OF DISSOLUTION CONDITIONS OF GALENA CONCENTRATE IN NITRIC ACID SOLUTION WITH HYDROGEN PEROXIDE

(SGEM Scientific GeoConference, 2007, A. Aras, G. Ucar, M. Boyrazli, S. Aydogan)

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The leaching conditions of galena (PbS) concentrate in nitric acid (HNO3) medium containing hydrogen peroxide (H2O2) were investigated in this study. Effects of stirring speed in the range of 0 to 600 rpm, nitric acid concentration in the range of 0.1 to 2.0 M, hydrogen peroxide concentration in the range of 0.25 to 2.0 M, leaching temperature in the range of 23 to 60В°C, particle size range of -212 +106, -106 +75, -75 +45 $\mu$m on lead dissolution were investigated. According to obtained results, it was determin...

Geology2007
Showing 101-150 of 234 records