Shifts in the Ediacaran to Lower Ordovician sedimentary zircon provenances of Northwest Gondwana: the Pyrenean files by Maxime Padel, Sebastien Clausen, Marc Poujol, J. Javier Álvaro

“… 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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A new cache of Eoarchaean detrital zircons from the Singhbhum craton, eastern India and constraints on early Earth geodynamics by Bulusu Sreenivas, Sukanta Dey, Y.J. Bhaskar Rao, T. Vijaya Kumar, E.V.S.S.K. Babu, Ian S. Williams

“…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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The new age data and pre-Paleogene stratigraphy of the Kırşehir Massif, Central Anatolia by Metin Beyazpirinç, Ali Ekber Akçay, Mustafa Kemal Özkan, Meftun Kerem Sönmez, Mustafa Dönmez

“…The sedimentation age of 237 Ma were obtained from the clastic zircons in the quartzites of the Demirtepe formation by the U/Pb method, and the metamorphism age ranges from 94.5 Ma and 83.7±3.3 Ma from the metabasites from the Whole Rock by the 40Ar/39Ar method. …”
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Testing alkali‐reactivity of selected concrete aggregates by Zdzisława Owsiak

“…However, the test duration up to 180 days is too short, particularly for defining the slow‐reactive aggregates reactivity, such as, for example, granites or quartzites. A major diagnostic symptom which confirms the occurrence of the alkali‐aggregate reaction is the presence of the reaction products (alkali silicate gel) in the concrete. …”
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Hadgarh Greenstone Belt: An extension of Tomka Daitari Greenstone Belt, Singhbhum Craton, India by Mousumi Bhattacharjee, Navratan Yadav, Saptarshi Mallick, Asutosh K. Tripathy, Suravi Banerjee

“…In both the belts, volcano sedimentary sequence of IOG is overlain by less deformed younger Mahagiri Quartzites and they are separated by an angular unconformity, marked by an impersistent conglomerate horizon. …”
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Shifts in the Ediacaran to Lower Ordovician sedimentary zircon provenances of Northwest Gondwana: the Pyrenean files by Maxime Padel, Sébastien Clausen, Marc Poujol, J. Javier Álvaro

“…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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Growing topography due to contrasting rock types in a tectonically dead landscape by D. Peifer, D. Peifer, C. Persano, M. D. Hurst, P. Bishop, D. Fabel

“…Here we explore how lateral variations in rock type, ranging from resistant quartzites to less resistant schists and phyllites, and up to the least resistant gneisses and granitic rocks, have affected rates and patterns of denudation and topographic forms in a humid subtropical, high-relief post-orogenic landscape in Brazil where active tectonics ended hundreds of millions of years ago. …”
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Tectonic setting, origin, and obduction of the Oman ophiolite by Searle, M, Cox, J

“…In the northern part of the Oman Mountains in the Bani Hamid area, United Arab Emirates, ~870 m of granulite facies rocks (enstatite + spinel ± diopside quartzites, garnet + diopside + wollastonite calc-silicate marbles, clinopyroxene-bearing amphibolites) were formed at temperatures similar to those of the garnet + diopside amphibolites of the Oman sole, 800-850 °C, but at slightly higher pressures, as much as 9 kbar. …”

A new ophiolitic mélange containing boninitic blocks in Alxa region: Implications for Permian subduction events in southern CAOB by Rongguo Zheng, Jinyi Li, Wenjiao Xiao, Lijia Wang

“…The tectonic blocks in the Tepai ophiolitic mélange are mainly composed of serpentinized peridotites, serpentinites, mylonitized gabbros, gabbros, basalts, and quartzites, with a matrix comprising highly deformed clastic rocks. …”
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Dibrova deposit – the typical complex REE-U-Th mineralization of Azov metallogenic province of the Ukrainian shield by V. V. Sukach, V. O. Shpylchak, O. V. Hrinchenko, S. M. Bondarenko, L. V. Isakov, V. O. Somka

“…The flexural fold was formed at the intersection of multidirectional faults, which is also favorable for ore mineralization. 4) Mineralization is confined to metasomatically altered aplite-pegmatites, less often to microcline quartzites of Dibrova suite. 5) K2O/Na2O ratio of ore-bearing granitoids reaches 3.5 and thorium-uranium ratio varies from 1.0 to 4.0. 6) Ores are composed by quartz (70–90 %) as predominant mineral and microcline. …”
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Stratigraphy of the Pitangui Synclinorium, northwest of the Quadrilátero Ferrífero mineral province - Brazil: magmatism and sedimentation from Archean to Neoproterozoic by Marcelo de Souza Marinho, Joana Reis Magalhães, Julio Cesar Lombello, Joanna Araújo, Luiz Paulo Pedrosa Di Salvio, Rosane Nascimento Silva, Denise Canabrava Brito, Wilson Luis Feboli, Camila Franco Basto

“…The Antimes Formation comprises quartzites and metaconglomerates related to fluvial and fan delta depositional environments. …”
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Analysis and evaluation of prospects for high-quality quartz resources in the North Caucasus by Bosikov I. I., Klyuev R. V., Revazov V. Ch., Martyushev N. V.

“…An analysis of the chemical properties of various rocks (quartzites, quartz sands, vein quartz) in the Republic of North Ossetia–Alania reveals that their parametric characteristics align with the requirements for silicon production. …”
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The Site of Shapi: A New Eneolithic Monument in the Ryn-Peski Desert (Northern Caspian) by Talgat B. Mamirov, Yerlan Ye. Klyshev, Samrat R. Kuandyk, Mambet S. Shagirbayev

“…The stone artefacts obtained are few enough, mainly of quartzitic sandstone, and number 67, e.g., 6 items are tools — arrowheads, an arrowhead fragment, a notched piece, a flake with a distinguished point, and a flake with retouch. …”
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The volcanogenic perspective on the world-class Chapada Cu-Au deposit in Central Brazil revisited by Sérgio Luiz Martini

“…The picture obtained allows for the working hypothesis that a volcanogenic relationship exists between epidote-rich amphibolite source rocks in the west, and quartzitic cap rocks in the east, of Chapada to produce disseminated ore, with accompanying K-Al-Si-propylitic alterations and a magnesian zone made up by early-recognized gedrite-staurolite rocks. …”
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Raw materials and functional designs of Fishtail projectile points from southern Brazil by Mirian Carbonera, Daniel Loponte

“…Not a single FP of the entire collection analyzed here was made from silicified limestones, which is one of the most common raw materials among the Uruguayan FPs, nor were they made from quartzites as were most of the FPs of the Pampean plains. …”
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O ZONAL E O AZONAL NA INTERPRETAÇÃO E CLASSIFICAÇÃO DOS GEOSSISTEMAS DO MUNICÍPIO DE LIMA DUARTE, ZONA DA MATA MINEIRA by Roberto Marques Neto

“…Keywords: Geosystem. Lima Duarte. Quartzitic combs. Rocks fields. EL ZONAL Y EL AZONAL EN LA INTERPRETACIÓN Y EN LA CLASIFICACIÓN DE LOS GEOSISTEMAS DEL MUNICIPIO DE LIMA DUARTE, ZONA DE LA MATA MINERA Resumen: El dominio tropical atlántico del sudeste brasileño presenta compartimentos geomorfológicos montañosos que se consubstancian sobre todo en zonas de cizallamiento reactivadas de fuerte expresión en el relieve, lo que engendra elementos azonales en la estructuración de los geosistemas regionales. …”
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SEM observation of grain boundary structures in quartz-iron oxide rocks deformed at intermediate metamorphic conditions by Leonardo Lagoeiro, Cristiane C. Gonçalves

“…QHB have physical/chemical properties very different from QQB, once the hematite plates have strong effect on wetting behavior of fluid, likewise micas in quartzites. They are pore-free flat surfaces, normal to compression direction, suggesting that they were once wetted with a continuous fluid film acting as faster diffusion pathway. …”
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Radarsat-1 image processing for regional-scale geological mapping with mining vocation under dense vegetation and equatorial climate environment, Southwestern Cameroon by Salomon Cesar Nguemhe Fils, Carrol Hedwige Bekele Mongo, David Guimolaire Nkouathio, Mumbfu Ernestine Mimba, Joachim Etouna, Philippe Njandjock Nouck, Brunot Nyeck

“…From the results obtained, color-composite produced image map containing lithological units easily identified formations such as continental and coastal deposits, sedimentary stack, micaschists, garnet micaschists, micaceous quartzites, charnockitic orthogneisses, and coincided with those already existing on published geological map from Maurizot et al. (1986) and non-published geological map after IRGM geological field campaign. …”
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The southern Araçuaí belt and the Dom Silvério Group: geologic architecture and tectonic significance by Guilherme G. Peres, Fernando F. Alkimim, Hanna Jordt-Evangelista

“…The Dom Silvério Group occurs in a NNE-SSW striking belt and consists of a thick package of metapelitic rocks with intercalations of quartzites, amphibolites, meta-ultramafics, banded iron formations, gondites and marbles. …”
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Solos sob vegetação de restinga na Ilha do Cardoso (SP): I - Caracterização e classificação Soils under restinga vegetation on the Cardoso Island (SP): I - Characterization and cla... by Felipe Haenel Gomes, Pablo Vidal-Torrado, Felipe Macías, Bruno Gherardi, Xosé Luiz Otero Perez

“…<br>Restinga is a typical vegetation on quartzitic, sandy, nutrient-poor parent materials along the Brazilian coast. …”
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