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Journal articles on the topic 'Granite structure'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Sun, Nai Quan. "Characteristics of Yichun Late Triassic - Early Jurassic Monzogranite." Applied Mechanics and Materials 135-136 (October 2011): 353–58. http://dx.doi.org/10.4028/www.scientific.net/amm.135-136.353.

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As building material, Granite has been extensively used. It is important to clear the geochemical characteristics of granites. The paper introduce the Late Triassic-Early Jurassic monzogranite, it mainly located in the south of Yichun area, which were intruded by medium grain monzogranite and syenogranite in Late Triassic-Early Jurassic. According to previous information, this granite distributed in Tangwanghe is widely in the south of study region. Rock type is coarse-medium grain porphyritic biotite monzogranite amphibole-bearing, the edge of the granite (Yishan Forest western) with a flow s

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Valentyn, Korobiichuk, Shlapak Volodymyr, Kryvoruchko Andrii, Sobolevskyi Ruslan, and Zuievska Natalia. "ANALYSIS OF CHANGE IN THE DECORATIVE PROPERTIES OF GRANITES UNDER THERMAL EXPOSURE." Eastern-European Journal of Enterprise Technologies 2, no. 12 (98) (2019): 35–43. https://doi.org/10.15587/1729-4061.2019.164694.

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We investigated samples extracted in Ukraine from nine granite deposits experimentally. We performed tests of granite samples at high temperatures of 200, 400, 600, and 900 °C. All presented granites showed a change in the color of surface at a temperature of 200 °C and higher. The behavior of granites under heating depends on their mineral composition, structure and texture. Surfaces of all samples became lighter and some granite samples lost saturation of their color. The largest increase in L component (image of stone samples brightens) of the CIELab color system occurred on Cardina

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3

Asante, Samuel Yaw, Nanine Fouché, and Augustine Lawer. "The collapsible nature of reworked residual granites in the Stellenbosch Municipality, South Africa." Journal of the Ghana Institution of Engineering (JGhIE) 24, no. 1 (2024): 1–6. http://dx.doi.org/10.56049/jghie.v24i1.36.

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In South Africa, residual granite is associated with the collapse phenomenon, a geotechnical hazard that was first identified in the 1950s. Residual granite is a product of chemical weathering (in-situ decomposition) or physical weathering of the parent rock (granite) whilst reworked residual granites is defined as residual granite reworked in-situ by termites. Residual granite usually consists of bulky-sized quartz particles, with silts, and bridged by colloidal matter. Extreme leaching of the colloidal matter creates a structure like a honeycomb. It, however, leaves voids within the structur

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4

Syomka, V. O., L. M. Stepanyuk, O. M. Ponomarenko, et al. "MINERALOGICAL AND PETROLOGICAL CHARACTERISTICS OF GRANITES OF THE SHPOLA-TASHLYK ORE DISTRICT (THE UKRAINIAN SHIELD)." Mineralogical Journal 45, no. 4 (2023): 29–47. http://dx.doi.org/10.15407/mineraljournal.45.04.029.

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Mineralogical and petrographical research of different types of granites of the Kirovohrad complex, such as of Lypniazhka, Berezivske, Yaroshivka, Dorofiivka, Hlodosy, in the Shpola-Tashlyk ore district of the Ukrainian Shield, has been conducted. It allows to identify them as rare-metal genetic type. The evidence comes from: High silica (SiO2 = 71.70—74.24%), agpaitic index (0.53—0.71) and low iron oxidation (0.16—0.59) in granites. Furthermore, they are enriched with fluorine and boron based on occurrence of accessory fluorite and tourmaline. Characteristic chemical feature of the granites i

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5

Petrov, O. V., S. N. Kashubin, D. P. Gladkochub, et al. "THE ZABAIKALIAN PARAMETRIC BOREHOLE: A FIRST EVIDENCE ABOUT DEEP STRUCTURE OF THE BORSHCHOVOCHNY METAMORPHIC CORE COMPLEX." Доклады Российской академии наук. Науки о Земле 513, no. 2 (2023): 165–73. http://dx.doi.org/10.31857/s2686739723601321.

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The Zabaikalian parametric borehole drilled out a metamorphic core complex on the reference geological and geophysical profile within the Central Asian fold belt, south of the Mongol-Okhotsk suture zone. In the section of the borehole drilled to a depth of 2600 m, a set of geophysical, geological and laboratory-analytical studies identified three main structural elements of metamorphic core complexes: the upper plate, detachment, and the lower plate. The upper plate (weakly metamorphosed rocks) is represented by serpentinite melange, which is separated from the underlying rocks of the lower pl

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Pribavkin, S. V., and M. D. Vishnyakova. "New data on the zircon age of Adui pluton granites." LITHOSPHERE (Russia) 24, no. 4 (2024): 675–85. http://dx.doi.org/10.24930/2500-302x-2024-24-4-675-685.

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Research subject. Zircon of granites in the western contact part of the Adui massif (Middle Urals). Aim. To obtain new U-Pb dating and to clarify the geochronological model of the Adui granite massif. Methods. U-Pb dating of zircon was established using a SHRIMP-II high-resolution secondary ion microprobe (VSEGEI Research Center, St. Petersburg). The major and trace elements were determined using SRM-18, SRM-25, and VRA-30 X-ray fluorescence spectrometers and an ELAN-9000 mass spectrometer with inductively coupled plasma. Results. In terms of chemical composition, the vein granites in the west

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7

Šefara, Ján, Miroslav Bielik, Jozef Vozár, et al. "3D density modelling of Gemeric granites of the Western Carpathians." Geologica Carpathica 68, no. 3 (2017): 177–92. http://dx.doi.org/10.1515/geoca-2017-0014.

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Abstract The position of the Gemeric Superunit within the Western Carpathians is unique due to the occurrence of the Lower Palaeozoic basement rocks together with the autochthonous Upper Palaeozoic cover. The Gemeric granites play one of the most important roles in the framework of the tectonic evolution of this mountain range. They can be observed in several small intrusions outcropping in the western and south-eastern parts of the Gemeric Superunit. Moreover, these granites are particularly interesting in terms of their mineralogy, petrology and ages. The comprehensive geological and geophys

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8

Stepanyuk, L. M., T. B. Yaskevich, and I. M. Kotvitska. "ZIRCON ANATOMY FROM THE ROCKS ASSOCIATION OF THE OSTRIVSKY QUARRY (ROS-TIKYCH MEGABLOCK OF THE UKRAINIAN SHIELD)." Mineralogical Journal 45, no. 1 (2023): 41–49. http://dx.doi.org/10.15407/mineraljournal.45.01.041.

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Granitoids play a key role in the geological structure of the Ros-Tikych megablock. Supercrustal rocks of the Ros-Tikych series have been preserved in the granitoids only in the form of isolated fragments such as elongated remains, small skialites and even smaller "melted" xenoliths. In particular, in the Ostrivsky quarry, located on the right bank of the Ros River east of Bila Tserkva, granitoids are found (even-grained, porphyry-like granites) among which, as a rule, small bodies of granodiorites, plagiogranites and amphibolites occur. In order to determine the source of the parent magmas of

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9

Stepanyuk, Leonid, Vasyl Zagnitko, Hennadiy Pavlov, and Tatyana Dovbush. "Geochronology by monazite veins of granite of the old Crimea quarry (Azov Region, Ukrainian Shield)." Visnyk of V.N. Karazin Kharkiv National University, series Geology. Geography. Ecology, no. 60 (June 1, 2024): 80–88. http://dx.doi.org/10.26565/2410-7360-2024-60-06.

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The purpose. The aplitoid biotite granites with traces of rheomorphic transformations lying among gneisses and crystalline schists of the Central-Priazovska series of the Ukrainian shield, as well as the anatomy of accessory crystals of zircon and monazite from these granites, were researched. Method. The time of granite intrusion was determined by the uranium-lead isotope dating method based on multi-grain measurements of accessory monazite. The anatomy of zircon crystals was studied in artificial slices by optical microscopy methods. The results. The age of monazites was determined by multig

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Leonov, Mikhail. "Oil in granites - reality or myth?" Priroda, no. 3(1315) (2025): 17. https://doi.org/10.7868/50032874x25030016.

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At ﬁrst glance, oil and granite seem to be antipodes by origin. How they can be integrated together? However, there is a meaning in such treatment. And, although aspects related to the origin of oil or granites are the subject of special studies – the important issue is the study of some features of the behavior of oil and granites after their formation as mineral resources and their entry into the composition and structure of the earth’s crust, and mainly the question of the role of granites in the formation of oil deposits.

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11

Eberts, Andreas, Hamed Fazlikhani, Wolfgang Bauer, Harald Stollhofen, Helga de Wall, and Gerald Gabriel. "Late to post-Variscan basement segmentation and differential exhumation along the SW Bohemian Massif, central Europe." Solid Earth 12, no. 10 (2021): 2277–301. http://dx.doi.org/10.5194/se-12-2277-2021.

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Abstract. The exposed Variscan basement in central Europe is well-known for its complex structural and lithological architecture resulting from multiple deformation phases. We studied the southwestern margin of the Bohemian Massif, which is characterized by major and long-lived shear zones, such as the Pfahl and Danube shear zones, extending over > 100 km and initiated during Variscan tectonics. We integrated Bouguer gravity anomaly and lidar topographic data analyses and combined our results with available data and observations from low-temperature thermochronology, metamorphic grades, and

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12

SANT’OVAIA, H., P. NOGUEIRA, J. CARRILHO LOPES, et al. "Building up of a nested granite intrusion: magnetic fabric, gravity modelling and fluid inclusion planes studies in Santa Eulália Plutonic Complex (Ossa Morena Zone, Portugal)." Geological Magazine 152, no. 4 (2014): 648–67. http://dx.doi.org/10.1017/s0016756814000569.

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AbstractThe Santa Eulália Plutonic Complex (SEPC), located in the Ossa Morena Zone (south Portugal), is composed of a medium- to coarse-grained pink granite (G0-type) and a central grey medium-grained biotite granite (G1-type). Available Rb–Sr data indicates an age of 290 Ma. An emplacement model for the SEPC is proposed, taking into account magnetic fabric, 2D gravity modelling and fluid inclusion planes studies. The G0 and G1 types demonstrate different magnetic behaviour: G0 is considered a magnetite-type granite and G1 is an ilmenite-type granite. The formation of G0 required oxidized cond

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13

Shardakova, G. Yu, E. N. Volchek, V. S. Chervyakovskiy, M. V. Chervyakovskaya, V. V. Kholodnov, and А. Б. Кузнецов. "Vodorazdelny Granite Massif (Subpolar Urals) and Correlation Problems of the Pre-Ordovician Granitoids and Volcanic Rocks from the Northern Part of the Lyapinsky Anticlinorium." Стратиграфия 31, no. 3 (2023): 3–31. http://dx.doi.org/10.31857/s0869592x23030079.

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Petrogeochemical features of the Vodorazdelny massif granites (Subpolar Urals, Lyapinsky anticlinorium) indicate these rocks are close to I-granites and were formed in suprasubduction environment. The ratios of the key elements (Rb, Ba, Th, Sr, Y, Nb) suggest that the basites of the melting slab and the fluid separated during their dehydration could participate in the granite generation. The U–Pb age of the main population of magmatogenic zircons is 593 ± 4 Ma and corresponds to the Vendian (Ediacarian). It coincides with the age of the granites from the nearby Vangyr massif (598 ± 5 Ма), as w

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14

Dovbush, Т. I., L. M. Stepaniuk, О. V. Ziultsle, and Т. B. Yaskevych. "Uranium-Lead by Monacite Geochronology of Granites Distributed in the Middle Current of ihe River Ros (Ros-Tikich Megablock Ukrainian Shield)." Geochemistry and ore formation, no. 42 (2021): 89–93. http://dx.doi.org/10.15407/gof.2021.42.089.

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Granitoids play a leading role in the geological structure of the Ros-Tikich megablock. The rocks of the Ros-Tikich series, which form the supercrystalline base here, have survived among the granitoids only in the form of some remnants of different sizes. In the coastal outcrops of the middle course of the river Ros (east of Bila Tserkva) and in the quarries located near the river, the most common are two-feldspar granitoids, isolated as part of two complexes – Uman and Stavyshche. Plagiogranitoids and supercrustal rocks have survived among them in the form of separate fragments. Of the access

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15

Kostenko, M. M., and P. A. Kondratenko. "STRUCTURAL AND MORPHOLOGICAL FEATURES OF VERBA MOLYBDENUM ORE MINERALIZATION." Мінеральні ресурси України, no. 1 (March 30, 2018): 15–19. http://dx.doi.org/10.31996/mru.2018.1.15-19.

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The article shows the Verba ore mineralization of molybdenum (Volyn Block of the Ukrainian Shield) is associated with small granite intrusions. They are located in the south-eastern exocontact zone of the Ustynivka granite massif of the Paleoproterozoic Chisinau complex. The Verba mineralization is a linear-coarse mineralized zone of the complex structure. This is confirmed by the development in its rocks of frequent, non-orientated veins of quartz, fluorite-quartz and carbonate-quartz compositions and numerous cracks. They have molybdenite and concomitant mineralization, as well as the wide

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16

Stepanyuk, L. M., O. V. Kovtun, O. B. Vysotsky, T. I. Dovbush, and V. V. Gulko. "NOVOUKRAINSKYI MASSIF: SOURCE OF ORIGINAL MAGMAS AND TIME OF FORMATION." Mineralogical Journal 45, no. 3 (2023): 60–69. http://dx.doi.org/10.15407/mineraljournal.45.03.060.

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The Ingul Megablock of the Ukrainian Shield is an area of mostly Paleoproterozoic continental crust located between the Dniester-Buh and Middle Dnieper Archean cratons. Its central part is occupied by the Korsun-Novomyrhorod anorthosite-rapakivigranite massif, which is 1757—1740 Ma, and the Novoukrainskyi massif, which is 2037—2034 Ma. A wide range of granitoids (biotite, garnet-biotite, hypersthene-garnet-biotite porphyry, trachytoid granites, granosyenites, and quartz syenites) participates in the geological structure of the Novoukrainskyi massif; medium and basic rocks of the monzonite seri

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17

Yamaguchi, Tetsuji, Hiroshi Isobe, and Shinichi Nakayama. "Analysis of Microporous Structure in Granite." Journal of Nuclear Fuel Cycle and Environment 3, no. 2 (1997): 99–107. http://dx.doi.org/10.3327/jnuce.3.99.

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18

Turutanov, E. Kh, B. Buyantogtokh, and B. Tengis. "Geological Structure Bogdoulinsky Granite Massif (Mongolia)." Bulletin of Irkutsk State University. Series Earth Sciences 27 (2019): 122–37. http://dx.doi.org/10.26516/2073-3402.2019.27.122.

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19

Bulakh, Andrei, Georgii Popov, Svetlana Yanson, and Mikhail Ivanov. "New data on the granite pedestal of the monument to Peter the Great “The Bronze Horseman” in Saint Petersburg." Journal of Mining Institute 248 (May 25, 2021): 180–89. http://dx.doi.org/10.31897/pmi.2021.2.2.

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In order to expand and popularize knowledge about the stone decoration of Saint Petersburg, we present new data on the mineralogy and petrography of the famous Thunder-Stone, the parts of which were the basis for the monument to Peter the Great – the legendary “Bronze Horseman”. In the course of studying geological documentation of the monument's granite base, we examined the mineral composition and internal structure of granite, as well as the fragments of a pegmatite vein and veinlets found in it. 25 single-mineral samples were collected from the available micro-scaled shear fractures within

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Putra, Ridho Widyantama, Frillia Nasution, Nurlita Putri, and Rahmat Alfath. "Control Structure of Garba Formation Through Petrography Analysis in Tanjung Beringin, South OKU Regency, South Sumatra." Journal of Geoscience, Engineering, Environment, and Technology 1, no. 1 (2016): 35. http://dx.doi.org/10.24273/jgeet.2016.11.4.

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The study area is the village of Tanjung Beringin carefully situations, South OKU Regency, which is included within the Subpalembang Basin with the dominant lithology is granite. Granite in this area has a diversity of grain size and mineral composition, in the southern part of the study area the size of the mineral feldspar is greater than the granite in the northern part, where the granite in this section contains plagioclase and quartz dominant, and it was bigger than the other minerals, Granite on the area carefully situations are the result of the appointment that occurs due to the compre

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21

Pigulevskiy, P. I. "Geotraverse «Granite—Odesa—Kryvyi Rih—Pereschepine." Geofizicheskiy Zhurnal 44, no. 6 (2023): 88–100. http://dx.doi.org/10.24028/gj.v44i6.273641.

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The article examines the results of research carried out by the methods of reflected waves and common depth point (MRW-CDP) on the «Granit» geotraverse, which crosses the whole of Ukraine from the southwest to the northeast and passes through the territories of Odesa, Mykolaiv, Dnipropetrovsk, and Kharkiv regions, west of Belgorod region of Russia. In structural and tectonic terms, the geotraverse crosses large geological structures: the marginal part of the Scythian Plate (SP), the Ukrainian Shield (USH), the Dnieper-Donetsk Basin (DDB) and the southern slope of the Voronezh Crystalline Massi

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22

Contreras Inga, Carlos Efrain, Gabriel Walton, and Elizabeth Holley. "Statistical Assessment of the Effects of Grain-Structure Representation and Micro-Properties on the Behavior of Bonded Block Models for Brittle Rock Damage Prediction." Sustainability 13, no. 14 (2021): 7889. http://dx.doi.org/10.3390/su13147889.

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The ability to predict the mechanical behavior of brittle rocks using bonded block models (BBM) depends on the accuracy of the geometrical representation of the grain-structure and the applied micro-properties. This paper evaluates the capabilities of BBMs for predictive purposes using an approach that employs published micro-properties in combination with a Voronoi BBM that properly approximates the real rock grain-structure. The Wausau granite, with Unconfined Compressive Strength (UCS) of 226 MPa and average grain diameter of 2 mm, is used to evaluate the effectiveness of the predictive app

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Artemenko, G. V., L. V. Shumlyanskyy, I. A. Shvaika, and V. K. Butyrin. "AGE OF THE HANNIVKA GRANITE (MIDDLE-DNIEPER MEGABLOCK OF THE UKRAINIAN SHIELD)." Mineralogical Journal 44, no. 4 (2022): 73–83. http://dx.doi.org/10.15407/mineraljournal.44.04.073.

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The Middle-Dnieper megablock, which is a fragment of the craton, differs from other cratons found on Earth. This is because of the large variety of granitoids (Tokiv, Mokro-Moskowka, and Demuryne complexes) in the former that were formed after the Mesoarchean TTG. Thus, the Middle-Dnieper megablock is important for studying the genesis and geodynamic formation conditions of Late Archaean granitoids. The granitoids in the Middle-Dnieper megablock are not well understood. They include the Hannivka granites of the East Hannivka monocline of the Kryvyi Rih-Kremenchuk structure, whose age and strat

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Chen, Xinran, Minglei Ma, Shumei Zhou, Mingjun Hu, Kejie Zhai, and Sen Wei. "Effect of Initial Conditions on the Pore Structure and Bimodal Soil–Water Characteristic Curve of Compacted Granite Residual Soil." Processes 12, no. 2 (2024): 409. http://dx.doi.org/10.3390/pr12020409.

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Granite residual soil typically forms complex pore structures and exhibits high water sensitivity due to physical and chemical weathering processes. Changes in initial compaction conditions significantly affect the mechanical and hydraulic properties of in situ granite residual soil subgrades, with these variations fundamentally related to changes in pore structure and soil–water characteristics. This study investigates the pore structure and bimodal soil–water characteristic curve (SWCC) of a compacted granite residual soil through laboratory tests and mercury intrusion porosimetry tests. Nin

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25

Corfu, Fernando, and Denver Stone. "Age structure and orogenic significance of the Berens River composite batholiths, western Superior Province." Canadian Journal of Earth Sciences 35, no. 10 (1998): 1089–109. http://dx.doi.org/10.1139/e98-056.

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The Berens River area of northwestern Ontario is underlain mainly by Archean felsic plutonic rocks, which enclose minor supracrustal and gneissic enclaves and merge with the greenstone-belt-rich Uchi Subprovince to the south. U-Pb geochronology using zircon and monazite shows that the batholiths evolved mainly between 2750 and 2690 Ma by sequential and essentially continuous intrusive activity into an older substratum composed of 3000-2800 Ma volcanic and tonalitic crust. There is a broad, but not strict, compositional transition from early biotite tonalite and hornblende tonalite, progressing

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Sukhorukova, Anna F., Dmitry A. Novikov, Alexander A. Cherkasov, and Anton S. Derkachev. "HYDROGEOLOGICAL FEATURES OF THE DEVELOPMENT OF THE BOROK QUARRY (NOVOSIBIRSK)." Interexpo GEO-Siberia 2, no. 1 (2021): 246–53. http://dx.doi.org/10.33764/2618-981x-2021-2-1-246-253.

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The hydrogeological features of the development of the Borok granite quarry, the oldest in Siberia, are considered in the article. It was found that the hydrogeological conditions of the quarry are quite difficult. Two aquifers: alluvial deposits of the Quaternary age and Paleozoic granites were identified according to the geological structure of the quarry, assessing the main hydrogeochemical indicators of the drainage waters of the quarry. The volume of water inflows for the last 70 years has been analyzed. The role of fissure-vein waters of Paleozoic granites, Quaternary aquifer and atmosph

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Yatsenko, N. D., A. S. Evforitskiy, and O. I. Sazonova. "Ceramic granite production wastes use for enhancement asphalt concrete construction and technical properties." IOP Conference Series: Earth and Environmental Science 1061, no. 1 (2022): 012046. http://dx.doi.org/10.1088/1755-1315/1061/1/012046.

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Abstract Bitumen concrete construction and technical properties improvement when used as refuse finely-fragmented layer inorganic material formed in production of ceramic granite, ceramic construction material, is conditioned by its phase composition and structure. The set of physicochemical studies has established that the high physical and technical properties of ceramic granite are associated with its microstructure, which presents glassceramic composite consisting of amorphous glass phase permeated with mullite crystals and silica-containing phases of quartz and cristobalite, that provides

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Azer, Mokhles K., Adel A. Surour, Hilmy E. Moussa, et al. "Homrit Akarem Post-Collisional Intrusion, Southeastern Desert, Egypt: Petrogenesis of Greisen Formed in a Cupola Structure and Enrichment in Strategic Minerals." Geosciences 15, no. 6 (2025): 200. https://doi.org/10.3390/geosciences15060200.

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The greisens discussed in the present study are associated with the Homrit Akarem post-collisional granites, which are exposed near the western edge of the Egyptian Nubian Shield in the Southeastern Desert of Egypt. The Homrit Akarem granites intruded into Neoproterozoic country rocks, with sharp intrusive contacts. The marginal parts of the Homrit Akarem intrusion underwent extensive post-magmatic metasomatism, resulting in the formation of albitized granite and greisens. The Homrit Akarem greisens occur as veins and stockworks, which can be classified into four types: muscovite-rich, cassite

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Zhang, Fan, Shengyuan Liu, Subiao Zhang, Yiming Zhang, Shaohui Quan, and Man Li. "Experimental Investigation of Shear Behavior and Pore Structure Evolution in Heat-Treated Granite Subjected to Liquid Nitrogen and Water Cooling." Applied Sciences 15, no. 8 (2025): 4581. https://doi.org/10.3390/app15084581.

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It is imperative to understand the shear mechanical properties and pore evolution of granite under thermal shock to assess the fracturing of hot dry rock reservoirs. In this study, variable-angle shear tests were performed on coarse- and fine-grained granite samples following liquid nitrogen (LN2) cooling under different high-temperature conditions. The effect of thermal treatment temperature, particle type, and cooling method on the shear strength, cohesion, and angle of internal friction of granite was then analyzed. To this end, low field nuclear magnetic resonance (NMR) and scanning electr

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Wang, Zian, Chao Zheng, Le Zhang, Kangwei Xiong, and Zhanlin Li. "Research Progress on Stability Analysis Methods of Granite Residual Soil Slope." E3S Web of Conferences 375 (2023): 01056. http://dx.doi.org/10.1051/e3sconf/202337501056.

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Based on the instability and failure of granite residual soil slope, this paper will introduce the stability of granite residual soil slope from theoretical research, indoor and outdoor simulation tests, and numerical analysis. Based on the review of previous work and the latest research results, the stability analysis of granite residual soil slope is discussed, and the main influencing factors of granite residual soil slope instability are summarized. The main factors are: its own disintegration property; The degree of microcracks in its internal structure.

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Trichandi, Rahmantara, Klaus Bauer, Trond Ryberg, et al. "3D shear wave velocity imaging of the subsurface structure of granite rocks in the arid climate of Pan de Azúcar, Chile, revealed by Bayesian inversion of HVSR curves." Earth Surface Dynamics 12, no. 3 (2024): 747–63. http://dx.doi.org/10.5194/esurf-12-747-2024.

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Abstract. Seismic methods are emerging as efficient tools for imaging the subsurface to investigate the weathering zone. The structure of the weathering zone can be identified by differing shear wave velocities as various weathering processes will alter the properties of rocks. Currently, 3D subsurface modelling of the weathering zone is gaining increasing importance as results allow the identification of the weathering imprint in the subsurface not only from top to bottom but also in three dimensions. We investigated the 3D weathering structure of monzogranite bedrock near the Pan de Azúcar N

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Daminov, Mirzogid Islomovich, Mirzo Zokirovich Sharipov, Rustam Khalilovich Shamsiev, and Dilshod Ergashovich Khaitov. "DOMAIN STRUCTURE AND SOME PROPERTIES OF RARE-EARTH GRANITE FERRITES." Scientific Reports of Bukhara State University 4, no. 3 (2020): 3–9. http://dx.doi.org/10.52297/2181-1466/2020/4/3/12.

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The crystals of rare-earth garnet ferrites have a complex domain structure, the form of which substantially depends on the crystallographic orientation of the under study sample. Due to the cubic symmetry of rare-earth garnet ferrites, 70, 110, and 180-degree domains can exist in them, and depending on the crystallographic orientation of the sample, the spontaneous magnetization vector in the realized domain configuration can lie in the plane of the sample (“Cotton” domains) perpendicular to the plane of the sample ("Faraday" domains), and make up a certain angle with its plane. According to k

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Siregar, Ahmat Munawir, Ira Kusuma Dewi, and Ngatijo Ngatijo. "Identifikasi Batuan Granit Daerah Prospek Panas Bumi Nyelanding menggunakan Metode Magnetik." Science, and Physics Education Journal (SPEJ) 4, no. 2 (2021): 62–69. http://dx.doi.org/10.31539/spej.v4i2.2388.

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This study aimed to identify granite rocks around the Nyelanding geothermal area, especially in the geothermal manifestations. This research used the magnetic method to analyze the subsurface structure of the geothermal area. Correction of magnetic data was performed in Microsoft excel 2010 software and two-dimensional modeling was performed using Oasis Montaj 8.4. The results showed that there are three layers of rock under Nyelanding hot springs, namely granite with a susceptibility of 0.009 - 0.05 SI to a depth of 500 meters and a layer of sandstone - clay, as well as layers of clay, gravel

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Krishnamurthy, P., and Chanchal Sarbajna. "Late Archaean Granitoid With a Ring Structure Around Chandra, Mandya District, Karnataka." Journal Geological Society of India 54, no. 4 (1999): 411–14. http://dx.doi.org/10.17491/jgsi/1999/540409.

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Abstract A ring-like structure is defined by a late Archaean granite around Chandra. It is a fertile granite with a parental status akin to the rare metal pegmatite-hosted deposits of Li-Be-Nb and Ta around Allapatna-Marlagalla. This observation has important implications for new exploration targets for rare metal pegmatites in southern Karnataka and also geological evolution of the terrain as a whole.

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Chadwick, Brian, V. N. Vasudev, and Nazeer Ahmed. "The Sandur Schist Belt and its Adjacent Plutonic Rocks Implications for Late Archaean Crustal Evolution in Karnataka." Journal Geological Society of India 47, no. 1 (1996): 37–57. http://dx.doi.org/10.17491/jgsi/1996/470116.

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Abstract Six formations are defined in a new lithostratigraphy of the volcanic and sedimentary rocks of the schist belt. The formations (Yeshwantnagar, Deogiri, Raman Mala, Donimalai, Taluru, Vibhuti Gudda) young consistently northeast, except for a part of the Taluru Formation in the northeast of the belt. We propose the new term Sandur Group to include these formations. Their combined thickness of c.35 km is in part an effect of thrust thickening. The Sandur Group was deposited in mainly shallow marine environments in a setting comparable with that of unstable mixed-mode basins. An incomplet

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Venugopal, Prabhu Raja, M. Kalayarasan, PR Thyla, et al. "Structural investigation of steel-reinforced epoxy granite machine tool column by finite element analysis." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 11 (2019): 2267–79. http://dx.doi.org/10.1177/1464420719840592.

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Higher damping with higher static stiffness is essential for improving the static and dynamic characteristics of machine tool structures. The structural vibration in conventional machine tools, which are generally made up of cast iron and cast steel, may lead to poor surface finish and the dimensional inaccuracy in the machined products. It leads to the investigation of alternative machine tool structural materials such as concrete, polymer concrete, and epoxy granite. Although epoxy granite has a better damping capacity, its structural stiffness (Young's modulus) is one-third as compared to c

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Ye, Yong, Yuan Li, and Xi Peng Xu. "Numerical Simulation of Granite Sawing by Discrete Element Method." Applied Mechanics and Materials 16-19 (October 2009): 1283–88. http://dx.doi.org/10.4028/www.scientific.net/amm.16-19.1283.

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Granite is a kind of typical discrete material, which experiences from continuous deformation stage, discontinuous deformation stage to fracture stage under sawing forces. Using discrete element method (DEM) to study the process of sawing granite will help us to understand the removal mechanism of granite from the microscopic point of view. In this paper, numerical uniaxial compression and three-point bending tests were conducted to determine the microscopic parameters of the granite specimen firstly, and then simulation was performed for sawing of the specimen. The sawing process, deformation

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Lu, Shu Qiang, and Mo Xu. "The Stability Analysis of Over-Dip Stratoid Structure Rock Slope." Advanced Materials Research 446-449 (January 2012): 1963–66. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1963.

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The rock mass structure of granite is massive, so the stability of granite slope is good. Massive rock become stratoid structure when the rock mass contain discontinuities such as joints and faults. The deformation and destruction of the slope rock mass is controlled by the behaviour and orientation of the discontinuities. Especially, the over-dip discontinuities controlled the slope stability. In this paper, based on the abundant field investigation on the slope in left bank diversion tunnel inlets of Nuozadu power station in Lancang River, the types of rock mass structures and the combinatio

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Ju, M., Y. Hao, Z. Guo, and H. Xing. "Influence of mineral mesoscopic structure on rock dynamic fragmentation under compression." Géotechnique Letters 12, no. 3 (2022): 1–18. http://dx.doi.org/10.1680/jgele.22.00027.

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Three types of rock were chosen to investigate the effect of mineral mesoscopic structure on rock fragmentation under dynamic compression. The fragments collected from the tested sandstones and granites were studied using an image-processing method, and the relationship between the fractal dimension of rock fragments and the mechanical properties in dynamic compression was established. Four failure patterns (apparently intact, local splitting, fragmentation, and pulverization) were classified according to the stress-strain behavior and fragment distribution of the rock. Moreover, rock fragment

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Snachev, Vladimir I., Aleksandr V. Snachev, and Vsevolod Yu Prokofiev. "Physicochemical conditions of the formation of the Larino granite-gneiss dome (South Ural)." Georesursy 24, no. 1 (2022): 74–83. http://dx.doi.org/10.18599/grs.2022.1.7.

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The Larino granite-gneiss dome is located on the border of the Aramil-Sukhtelya and Magnitogorsk megazones and is a two-headed anticlinal structure, the nuclear parts of which are composed of granitoids of the Pervomai and Larino massifs, and their framing – apovolcanic amphibolites, garnet-mica-tins, garnet-amphislans siliceous-carbonaceous schists of the Bulatovo Series (S1–D1bl). A series of concentric high-gradient zones of metamorphism are observed from granitoids to shales. Mineral parageneses of the amphibolite facies at a distance of several kilometers are replaced by associations of e

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Rao, G. M. Nagaraja, and C. RL Murthy. "Dual role of microcracks: toughening and degradation." Canadian Geotechnical Journal 38, no. 2 (2001): 427–40. http://dx.doi.org/10.1139/t00-105.

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One of the methods of improving the mechanical properties of ceramics is to introduce a defective structure that acts as a restraint for the propagation of cracks. In the present study a detailed investigation was carried out by introducing a defective structure in rock to determine if there is any improvement in properties similar to ceramics. Granite was chosen for the investigation, and the microcracks were introduced by a heating and cooling cycle. Uniaxial compression tests have shown that granite thermally treated to 200°C shows the highest strength, and the strength of granite treated t

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Irvani, P. Soemintadiredja, and I. A. Sadisun. "Controlling factors decreased of granite rock masses quality on Bangka island." IOP Conference Series: Earth and Environmental Science 1419, no. 1 (2024): 012029. https://doi.org/10.1088/1755-1315/1419/1/012029.

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Abstract The Granite rock covered almost one-fifth of the land on Bangka Island. The construction of settlements and various infrastructures on granite formations has increased. This research intended to analyze the parameters controlling the granite quality (S-type and I-type), which are widespread on Bangka Island. The Rock Mass Rating (RMR) and Geological Strength Index (GSI) methods measure the rock quality and their controlling factors. As a result, granite has RMR and GSI variation quality from fair to very good. Granite at the coastline tends to be of lower quality than those further fr

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Annikova, I. Yu, A. G. Vladimirov, S. Z. Smirnov, et al. "Geology and mineralogy of the Novo-Akhmirovskoe deposit of lithium topaz-zinnwaldite granites (East Kazakhstan)." LITHOSPHERE, no. 2 (June 12, 2019): 304–26. http://dx.doi.org/10.24930/1681-9004-2019-19-2-304-326.

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Research subject. The Novo-Akhmirovskoe lithium-bearing deposit in the East Kazakhstan region, which is represented by an intrusive layer of topaz-zinnwaldite granites, is located within of the Kalba-Narym-Koktogai lithium-tantalum raremetal-granite belt. Being part of the Altai collision system, this belt is considered unique in terms of its length (more than 1000 km). Ores in the Novo-Akhmirovskoe deposit are represented by massive to low porphyry leucocratic granites composed of quartz (30–40%), albite (25–40%), microcline (15–35%), lithium mica varying in composition from zinnwal dite to l

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Lu, Hui, Yue Pan, Kang He, et al. "Dynamic Mechanical Properties and Damage Evolution Characteristics of Beishan Deep Granite under Medium and High Strain Rates." Materials 16, no. 15 (2023): 5235. http://dx.doi.org/10.3390/ma16155235.

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To study the dynamic mechanical properties and damage evolution mechanism of Beishan deep granite under medium and high strain rates, dynamic mechanical tests for the deep granite specimens with different strain rates were conducted using the split Hopkinson pressure bar (SHPB) device. The improved Zhu–Wang–ang (ZWT) dynamic constitutive model was established, and the relationship between strain rate and strain energy was investigated. The test results show that the strain rate in the dynamic load test is closer to the strain rate in the rock blasting state when the uniaxial SHPB test is appli

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Lavanya, Damaraju Lakshmi, Poorna Hanumanth Rao, B. Aishwarya, and G. Priyanka. "A Study on Behaviour of Clayey and Silty Soils with Granite Dust." IOP Conference Series: Earth and Environmental Science 1280, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1755-1315/1280/1/012039.

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Abstract A massive amount of granite dust is produced as a byproduct of processing granite rock. Disposing of granite dust is a fatal to human health and is a environmental toxic for land disposal. An attempt was made to use such a material in construction, decrease the disposing problems. Soil, an important material bearing the load of the resisting structure can be available in various layers beneath the earth. Clayey soil and mixture of silt in soil layers exhibits inadequate load bearing ability and shows significant changes in volume with respect to changes in moisture levels. Stabilizati

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Leonov, M. G., E. S. Przhiyalgovskii, E. V. Lavrushina, and A. V. Nikitin. "GRANITE ISLAND MOUNTAINS: MORPHOLOGY, TECTONIC STRUCTURE AND GENESIS." Geomorphology RAS, no. 3 (January 1, 2017): 3–15. http://dx.doi.org/10.15356/0435-4281-2017-3-3-15.

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KUBO, K. "Ladder Dike : A Curious Structure in the Granite." Journal of Geography (Chigaku Zasshi) 98, no. 1 (1989): Plate3—Plate4. http://dx.doi.org/10.5026/jgeography.98.plate3.

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Song, Fan, Yan-Hui Dong, Zhi-Fang Xu, et al. "Granite microcracks: Structure and connectivity at different depths." Journal of Asian Earth Sciences 124 (July 2016): 156–68. http://dx.doi.org/10.1016/j.jseaes.2016.04.023.

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Nallusamy, S., K. Sujatha, K. Rajan, and K. R. Vijaya Kumar. "Analysis of Particle Damping Characteristics on Steel Vertical Machining Centre Column with Epoxy Reinforced Granite." International Journal of Engineering Research in Africa 50 (September 2020): 94–102. http://dx.doi.org/10.4028/www.scientific.net/jera.50.94.

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In high speed machining, performance is generally influenced by the dynamic behaviour of the machine tool structures. The machine tool structure is required to be rigid in order to remove the undesirable vibration and to improve the work piece quality. The most conventional material used in machine tool structure is cast iron which has both stiffness and dynamic characteristics to perform at varying speeds. The objective of this work is to improve damping capacity of vertical machining centre column. The damping capacity of column can be increased further by using passive damping method of bal

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Parshakov Valerii, Parshakov Valerii, and Tsependa Volodymyr Tsependa Volodymyr. "ORGANIZATIONAL AND METHODOLOGICAL PROVISIONS OF STRATEGIC AUDIT OF ECONOMIC ACTIVITY OF ENTERPRISES ENTERPRISING ACTIVITIES." Socio World-Social Research & Behavioral Sciences 03, no. 01 (2021): 128–38. http://dx.doi.org/10.36962/swd0301202128.

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In order to form methodical principles of internal strategic audit of activity the development of homogeneous well-known principles of economic audit through adaptation of specific principles is offered. The research was based on the functional-vector orientation of the objects of strategic audit, highlighting two levels of differentiation: 1 - level - types of economic activity of the granite mining enterprise (production and administrative activities); Level 2 - vectors within each of the above activities (strategic environment, development strategy, strategic gaps). This approach will allow

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