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281
Effect of chemically synthesis compared to biosynthesized ZnO nanoparticles using aqueous extract of C. halicacabum and their antibacterial activity
Published 2019-01-01“…The surface morphologies analysis has been hexagonal quartzite structure confirmed from SEM. Finally antibacterial activities against Gram-positive and negative bacteria. …”
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282
Control of rock joint parameters on deformation of tunnel opening
Published 2016-08-01“…Garnetiferous schist and slate characterized using high persistence show the development of large plastic zones but small block size, depending upon joint spacing; whereas low persistence, low spacing and low shear strength in marble and quartzite create rock block fall condition.…”
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283
PETROGRAPHY AND PROVENANCE OF SANDSTONE AND STUDIES OF SHALE OF KULDANA FORMATION, KALAMULA AND KHURSHEEABAD AREA, KAHUTA, AZAD KASHMIR
Published 2017-01-01“…The sedimentary grains include limestone, dolomite, quartzite, sandstone and siltstone. The volcanic rock fragments are of fine grained basalts. …”
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284
New orogenic type gold occurrences in the Uyanga ore knot (Central Mongolia)
Published 2019-01-01“…The rocks of the Erdenetsogt formation have an irregular gold content: 0.96 g/t Au is determined in quartz vein (BG-7/16), Au content is highest up to 3.5 g/t in the quartzite-jasper (Ult-7/16 and Ult-9/16) cut by quartz veins in the Ult occurrence. …”
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285
About potential area of Patrinia sibirica (L.) Juss. in the Southern Urals
Published 2020-11-01“…The modeling has revealed suitable habitats in a wood-steppe zone of the Trans-Ural which are confined to the outcrops of granite and quartzite rocks among petrophytic and shrub steppes. …”
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286
Detrital zircon geochronology of Neoproterozoic to Middle Cambrian miogeoclinal and platformal strata: Northwest Sonora, Mexico
Published 2000-05-01“…and Middle Cambrian Bolsa Quartzite show age groups from 525 Ma to 1.63 Ga, with a dominant population of 1.1 to 1.2 Ga grains. …”
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287
Korelasi Unsur Antara U dengan Co, Ni, Ag, Mo pada Batuan Granit dan Kuarsit di Jumbang I, Kalimantan Barat
Published 2012-05-01“…As the other areas in Kalan, Jumbang I also have geochemical anomalies of uranium element in Vein of quartzite rocks at several locations, with high grade and radioactivities value between 500 c/s - 15000 c/s. …”
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288
Metallogenic characteristics of some localities of gold mineralization along shear zones of Elgaab, Dum el Tor and Sodri - Um Bader, (Sudan)
Published 2021-08-01“…The sector is dominated by metasediments, metavolcanic - sedimentary series represented by chlorite - schist, quartzite, calc - silicate, and marble. Low - grade metamorphic arc - related volcano - sedimentary sequence occurs as thin narrow bands and subjected to tectono - thermal events of Pan - African orogeny during the Late - Proterozoic era (900 - 550 Ma). …”
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289
The Silurian Frontier of Emersion Stage in the Territory of South Cis-Timan (Perm Region)
Published 2020-10-01“…From the point of view of lithology, ventfacts are quartzite sandstones with relics of hydromicas cement, the structure of which is dominated by a cementless contact connection of quartz grains and fragments of various rocks. …”
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290
Methodological substantiation of the choice for optimal modes of equipment operation during the stage-wise concentrate removal in iron ores beneficiation
Published 2022-11-01“…For the studied ferruginous quartzite ore processed at the Stoilensky GOK, the obtained dependences can be described by a second-order polynomial with a high accuracy of approximation. …”
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291
Russian meteorite of the Bronze Age (rock record)
Published 2014-12-01“…This paper presents the results of the study of petroglyphs found in the quartzite grotto near the Skelnovsky small village in the Northern Black Sea in the South of Russia. …”
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292
DEFORMASI TEKTONIK TERHADAP PEMBENTUKAN PERANGKAP PADA ZONA TINGGIAN BATUAN DASAR DI LAPANGAN SUTOS CEKUNGAN SUMATERA SELATAN
Published 2012“…Basement rock at the study area consists of schist, filit, quartzite, granite, and limestone. In the study area identified lasted for four tectonic stages, namely the phase of post-Cretaceous tectonic compression, extension Paleogene tectonic phase, Neogene tectonic compression phase, and post-compression Neogene tectonics phase. …”
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293
16S rRNA Gene Amplicon Sequencing Data of the Iron Quadrangle Ferruginous Caves (Brazil) Shows the Importance of Conserving This Singular and Threatened Geosystem
Published 2021-10-01“…Floor and ceiling samples of seven ferruginous caves and one quartzite cave were collected, and their microbial relative abundance and diversity were established by 16S rRNA gene amplicon sequencing data. …”
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294
Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
Published 2021-10-01“…Volcanic rocks belonging to Bonai volcanic suite (BVS) occur outside and all-around the NKB that consists of three distinct but conformable stratigraphic units viz; Lower Shale Formation, Middle Banded Hematite Quartzite (BHQ) and/or Banded Hematite Jasper (BHJ) and Upper Shale Formation. …”
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295
The orosirian-statherian sequence and transpressive geometry in Santa Maria de Itabira, Minas Gerais
Published 2014-06-01“…The metasedimentary rocks cropping out in the surroundings of the township of Santa Maria de Itabira (MG), comprise Orosirian quartzites herein informally named Pedra Branca Quartzite and the Statherian banded iron formation bearing sequences at the eastern border of the southern Espinhaço Range. …”
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296
Hydrogeochemical characterization of a shallow groundwater system in the weathered basement aquifer of Ilesha area, southwestern Nigeria
Published 2014-09-01“…The low concentrations of major cations in the urban areas can be attributed to low mineral dissolution of quartzite and muscovite quartz-schist bedrocks compared to the weathered granitic, amphibolite and biotite schist in the peri-urban areas. …”
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297
IMPROVED MAGNETIC DATA ANALYSES AND ENHANCEMENT TECHNIQUES FOR LITHOLOGICAL AND STRUCTURAL MAPPING AROUND AKURE, SOUTHWESTERN NIGERIA
Published 2018-01-01“…Based on magnetisation contrast, four amplitude zones were revealed on the Analytic Signal (AS) image, which include very high zone as migmatite complexes; intermediate zone as migmatite/gneiss and charnockite complexes; fairly low zone as granite-gneiss and granite complexes, and low zone as quartzite ridge/ complex. The large causative bodies delineated from the pseudo-gravity revealed density of about 0.133 g/cc in susceptibility. …”
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298
Influence of aggregate source and size on the shear behavior of high strength reinforced concrete deep beams
Published 2023-12-01“…Nine deep beams were prepared with three coarse aggregate types (i.e., limestone, steel slag, and quartzite) having different toughness properties and two nominal maximum aggregate (10 mm and 20 mm) sizes, which were examined under four-point bending. …”
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299
Palaeoweathering Conditions, Provenance, and Tectonic Setting of the Early Silurian Longmaxi Formation in the Upper Yangtze Region (Southern China): Evidence from Geochemistry
Published 2023-04-01“…The parent rock of the Longmaxi-1 black shales in the Upper Yangtze region is a mixture provenance, mainly composed of intermediate-acid volcanic lithologies (granite and granodiorite), followed by mature quartzite and basalt. Black shale deposition is related to the tectonic setting of active continental margin and island arc-continent collision. …”
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300
Bond Behavior of Steel Rebar Embedded in Cementitious Composites Containing Polyvinyl Alcohol (PVA) Fibers and Carbon Nanotubes (CNTs)
Published 2023-02-01“…In the cementitious composites, the binder consisted of ordinary Portland cement, blast furnace slag, and fly ash, with a weight ratio of 39.5, 21.0 and 39.5%, respectively, while the nonbinder consisted of quartzite sand, lightweight aggregate, superplasticizer, and shrinkage-reducing admixture. …”
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