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541
Geology and crystallization conditions of the Särkiniemi intrusion and related nickel-copper ore, central Finland – implications for depth of emplacement of 1.88 Ga nickel-bearing...
Published 2020-12-01“…Several Ni-Cu deposits occur within the Kotalahti area, central Finland, in proximity to an Archaean gneiss dome surrounded by a Palaeoproterozoic craton-margin supracrustal sequence comprising quartzites, limestones, calc-silicate rocks, black schists and banded diopside amphibolites. …”
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542
A new bluish-leaved Syagrus (Arecaceae) from an overlooked OCBIL in the Espinhaço Range (Brazil)
Published 2023-04-01“…Both species occur non-sympatrically in the Serra do Cabral, in contrasting microhabitats: S. carvalhoi in the southern quartzitic campos rupestres and S. cabraliensis in the northern ferruginous campos rupestres. …”
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543
Provenance Analysis of the Ojén Nappe and Its Implication for the Geodynamic History (Alpujárride Complex, Betic Cordilleras, Spain)
Published 2023-04-01“…In order to carry out an LA-ICP-MS U-Pb age determination and provenance analysis, detrital zircon grains from two quartzites interlayered within marbles and metapelites were extracted. …”
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544
Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
Published 2023-01-01“…The possibility of minor contributions from the lower Cambrian rocks of the Ossa-Morena Zone into the Iberian Pyrite Belt quartzites is unlikely, as the latter lack the 1.9Ga peak that characterises the Ossa-Morena Zone sediments. …”
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545
Groundwater flow system analysis in the regolith of Dodowa on the Accra Plains, Ghana
Published 2020-04-01“…On the one hand, groundwater was found at shallow depths in the saprolite of the Togo Structural Unit (TSU), which, in unweathered state, is composed of phyllites, schists, and quartzites. This system was shallow and predominantly unconfined, as revealed by tidal analysis. …”
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546
Numerical Analysis of a Short-Term Tracer Experiment in Fractured Sandstone
Published 2007-01-01“…A short-term, pulse injection tracer experiment conducted in fractured quartzitic sandstone at Kukuan, Taiwan was analyzed. …”
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547
ASSESSMENT OF POSSIBILITY OF USING MILKY-WHITE QUARTZ OF NOVOTROITSKОЕ DEPOSIT FOR OBTAINING HIGH-PURITY QUARTZ, SOUTH URALS
Published 2021-08-01“…The milky-white quartz of the deposit is coarse-grained, intensely deformed, broken by a system of cracks, with sharp contacts with the host alternating mica shales and quartzites. In the central part, large-giant-grained quartz is blocky and sheet. …”
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548
Lakes hydrochemistry in the zone of influence of iron-mining industry waste waters
Published 2019-03-01“…The biotites that make up the gneisses to which the ore bodies of ferruginous quartzites are confined are the main sources of cations K+ and Mg2+, and amphiboles – Ca2+ and Na+. …”
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549
Deficiências de magnésio em solos e culturas do Norte de Portugal Magnesium deficiencies in soils and crops in Northern Portugal
Published 2007-07-01“…The following lithology is found in the schists and in the Schist and Greywacke complex: feldspar quartz-phyllites, phyllites, micaschists, graphytic slates, siltstones, ampelites, lydites, psamites, greywackes, phyllito-quartzites and quartzites. The soil units where low foliar Mg concentrations or visible Mg deficiencies in crops more often observed are: Dystric and Umbric Leptosols, Umbric Regosols, Dystric and Umbric Cambisols, Dystric and Umbric Fluvisols, Umbric and Aric Anthrosols and Cumulic Anthrosols. …”
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550
Geospatial Characterisation of Gravitational and Erosion Risks to Establish Conservation Practices in Vineyards in the Arribes del Duero Natural Park (Spain)
Published 2023-08-01“…The results of the gravitational susceptibility are grouped into five classes: very high, high, medium, low and very low, so that the first corresponds to areas of high slope, without vegetation, south facing, with a lithology of quartzites, metapelites and gneisses (canyons, sloping valleys) and, on the contrary, the sectors of lower susceptibility coincide with flat areas, more density of vegetation, north facing, with conglomerates, cobbles, sands and clays, corresponding to erosion surfaces or valley bottoms. …”
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551
Adaptation to raw materials intra-variability: Examples from three Middle Palaeolithic surface stations of the Hérault Valley, France (Les Geissières, Saint-Saturnin and Camillo)
Published 2021-12-01“…Some of these have yielded stone tools made from unusual raw materials, such as, brecciated quartzites and jasper-like rocks, as well as quartz and rare flints. …”
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552
Contribution to the Mineral Chemistry of the Proterozoic Aravalli Mafic Meta-Volcanic Rocks from Rajasthan, NW India
Published 2020-07-01“…Field evidence such as volcanic flows and suspect pillow lava structures, dominant Fe-tholeiite lava flows intercalated with quartzites and argillaceous sediments, indicate rift tectonic environment. …”
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553
On the radiogenic heat production of metamorphic, igneous, and sedimentary rocks
Published 2018-11-01“…Among sedimentary rocks, aluminous shales are the highest heat producing (2.9 μW m−3) whereas more common iron shales are lower heat producing (1.7 μW m−3). Pure quartzites and carbonates are the lowest heat producing sedimentary rocks. …”
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554
Numerical Analysis of a Short-Term Tracer Experiment in Fractured Sandstone
Published 2007-01-01“…A short-term, pulse injection tracer experiment conducted in fractured quartzitic sandstone at Kukuan, Taiwan was analyzed. …”
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555
Paleogeographic reconstruction of an ancient source-to-sink system in a lacustrine basin from the Paleogene Shahejie formation in the Miaoxibei area (Bohai Bay basin, east China)
Published 2023-10-01“…This study shows that a complete near-transport source-to-sink system developed in the Miaoxibei area, with the source area composed of Mesozoic granites, Neoproterozoic quartzites, and conglomerates. The primary and secondary watersheds were trending in N–S and E–W directions, respectively. …”
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556
STRUCTURAL, GEOPHYSICAL AND GEOCHEMICAL CRITERIA FOR EPITHERMAL HIGH-SULFIDATION GOLD MINERALIZATION ON THE EXAMPLE OF SVETLOE ORE FIELD (KHABAROVSKIY KRAY)
Published 2022-08-01“…The following main conclusions: the Svetloe ore field has characteristics typical of epithermal deposits of acid-sulfate gold mineralization: it is located in a volcanic belt, confined to central-type volcanic apparatuses controlled by faults; gold mineralization is accompanied by advanced argillic and quartz altered rocks: secondary quartzites of zonal structure, were drawn. The characteristics of structural control and metasomatic zoning are well defined in interpretation of data from remote sensing, airborne magnetic surveys, and gamma ray spectrometry. …”
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557
MINERAL POTENTIAL OF ARCTIC KARELIA
Published 2018-02-01“…The mineral resources of the territory mainly consist of metallic (Mo, Cu, U, Au, Ag, PGM, rare metals and REE) and nonmetallic useful minerals (diamond, apatite, granite, graphite, diatomites, ilmenite, calcareous rocks, quartz, quartzites, feldspar (ceramic pegmatite and uncommon types), kyanite, muscovite, olivinite (olivine), dunite and gemstones. …”
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558
Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma
Published 2022-12-01“…The possibility of minor contributions from the lower Cambrian rocks of the Ossa-Morena Zone into the Iberian Pyrite Belt quartzites is unlikely, as the latter lack the 1.9Ga peak that characterises the Ossa-Morena Zone sediments. …”
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559
Shifts in the Ediacaran to Lower Ordovician sedimentary zircon provenances of Northwest Gondwana: the Pyrenean files
Published 2023-01-01“… Detrital zircon grains from Cambrian–Lower Ordovician sandstones and quartzites sampled in the Pyrenees were dated by LA-ICPMS in order to assess their provenance sources. …”
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560
A new cache of Eoarchaean detrital zircons from the Singhbhum craton, eastern India and constraints on early Earth geodynamics
Published 2019-07-01“…Here, we present U–Pb ages and Hf isotopic compositions of detrital zircon grains from ∼2.9 Ga old quartzites and magmatic zircon from a 3.505 Ga old dacite from the Iron Ore Group of the Singhbhum craton, eastern India. …”
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