Results 31 to 40 of about 315,004 (173)
Geological Histories from 4372 Ma to 26 Ma Recorded in Siliciclastic Metasedimentary Rocks from the Central Yilgarn Craton [PDF]
, 2012 This study presents an investigation of detrital, metamorphic, and hydrothermal minerals from siliciclastic metasedimentary rocks of the Illaara and Maynard Hills greenstone belts, central Yilgarn Craton. This research assesses how 4.3 to 3.0 Ga detrital
Eric Royal Thern (23478298)
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, 1979 Stratigraphy and uranium potential of Early Proterozoic metasedimentary rocks in the Medicine Bow Mountains ...
K.E. Karlstrom (8754141) +1 more
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International Journal of Geophysics, 2023 The version three of Earth Magnetic Anomaly Grid (EMAG2-v3) used in this work is aimed at establishing the spatial relationships between tectonic structures and gold and associated mineralization in the Pangar-Djérem area, central and southern Cameroon ...
Constantin Mathieu Som Mbang +6 more
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Geology of giant quartz veins and their host rocks from the Eastern Pyrenees (Southwest Europe)
Journal of Maps, 2023 Giant Quartz Veins (GQVs) are ubiquitous in different tectonic settings and, besides being often related to hydrothermal ore deposits, also represent large-scale fingerprints of the structural and geochemical history of the rocks in which they are hosted.
Eloi González-Esvertit +5 more
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The orosirian-statherian sequence and transpressive geometry in Santa Maria de Itabira, Minas Gerais [PDF]
Geologia USP. Série Científica, 2014 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 ...
Ricardo Pagung de Carvalho +4 more
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Journal of the Geological Survey of Brazil, 2018 The Castelo de Sonhos gold deposit (~1.5 Moz Au) is located in the southeastern Tapajós Gold Province and is hosted in variably deformed metaconglomerates and metasandstones of the Castelo dos Sonhos Formation, which was deposited between 2011 and 2050 ...
Joana Queiroz, Evandro Klein
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The Mesoproterozoic sub-Heddersvatnet unconformity, Telemark, South Norway [PDF]
Bulletin of the Geological Society of Finland, 2005 The 1.51 Ga Rjukan group,Telemark, S Norway, is divided into felsic volcanic rocks of the Tuddal formation and mafic rocks of the Vemork formation. It is overlain by the sedimentary rocks of the Vindeggen group (1.50-1.17 Ga), starting with the arkosic ...
K. Laajoki
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Geosciences, 2020 Trondhjemitic leucosomes, hosted in late Variscan metasedimentary migmatites from the upper amphibolite-facies basement of the north-eastern Peloritani Mountains (southern Italy), have petrographic and geochemical features consistent with their origin as
Patrizia Fiannacca, Rosolino Cirrincione
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A reactive assimilation model for regional-scale cordierite-bearing granitoids: geochemical evidence from the Late Variscan granites of the Central Iberian Zone, Spain [PDF]
, 2008 Regional scale biotite and cordierite-bearing granites (s.l.) in the Variscan of the Central Iberian Zone (CIZ) are spatially closely associated with cordierite-rich nebulites and cordierite-bearing two-mica granites, and with cordierite-rich high grade ...
Ellam, R.M. +7 more
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Petrography and geochemistry of the Pedra Dourada Granulite, southeastern Minas Gerais, Brazil
REM: International Engineering JournalThe Pedra Dourada Granulite (PDG) occurs at the southeastern portion of the Araçuaí Belt, north of the town of Ponte Nova. It comprises bodies up to 45 km2 inserted into amphibolite-facies gneisses of the Mantiqueira Complex. Motivated by the discrepancy
Kassia de Souza Medeiros Marinho +2 more
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