A Geochemical Overview of Mid-Archaean Metavolcanic Rocks from Southwest Greenland [PDF]
Geosciences, 2018 The present contribution reviews bulk-rock geochemical data for mid-Archaean (ca. 3075–2840 Ma) metavolcanic rocks from the North Atlantic Craton of southwest Greenland.
Kristoffer Szilas
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Nature, affinities and significance of metavolcanic rocks in the Outokumpu assemblage, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1984 The rock association of serpentinite‒chrome-silicate skarn‒dolomite-quartz rock‒black schist in the Outokumpu region, in which polymetallic sulphide ore deposits occur, has been compared to an ophiolite.
A.F. Park
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Gold exploration in the Gabal Abu Karahish area, Central Eastern Desert, Egypt: an integrated geological perspective [PDF]
Scientific ReportsThis study aims to explore the presence and distribution of gold deposits in the Gabal Abu Karahish area by identifying hydrothermal alteration zones associated with favorable geological settings.
Mahmoud Abd El-Rahman Hegab +6 more
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U-Pb (Zircon) Ages of Metavolcanic Rocks From the Itaiacoca Group: Tectonic Implications [PDF]
Geologia USP. Série Científica, 2003 The main aim of this work is to present and discuss the U-Pb ages obtained for zircon grains from metavolcanic rocks of theItaiacoca Group. The Itaiacoca Group is a metavolcano-sedimentary sequence, which occurs as a narrow belt between theCunhaporanga ...
Oswaldo Siga Jr. +8 more
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Palaeoproterozoic mafic and intermediate metavolcanic rocks in the Turku area, SW Finland [PDF]
Bulletin of the Geological Society of Finland, 2007 Twenty two samples were analysed from mafic and intermediate volcanic rocks from the Turku area along ~60 km long north-south geotraverse. Geographically and lithologically the samples were divided into the Pargas, Turku and Vahto groups.
M. Väisänen, G. Westerlund
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Multi-method characterization of rare blue quartz-bearing metavolcanic rocks of the Rio dos Remédios Group, Paramirim Aulacogen, NE Brazil [PDF]
Brazilian Journal of Geology, 2023 The Rio dos Remédios Group comprises a supracrustal sequence that occupies the base of the Espinhaço Supergroup, São Francisco Craton, Brazil. Its basal formation, Novo Horizonte, crops out in the Paramirim region mainly as metavolcanic rocks that ...
Danielle Cruz da Silva +4 more
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Gold mobilization during metamorphic devolatilization of Archean and Paleoproterozoic metavolcanic rocks [PDF]
Geology, 2020 Abstract Volcanic rocks in Archean and Paleoproterozoic greenstone belts are abundant and have been suggested as a potential Au source for orogenic Au deposits. The behavior of Au during metamorphism of these rocks is, however, poorly known.
Patten, C. G. C. +6 more
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Hydrocarbons in the Säviä volcanic schist zone, central Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 Light hydrocarbon gases have been analysed from 21 samples of hydrothermally unaltered and 11 samples of hydrothermally altered metavolcanic rocks from the Säviä volcanic schist zone in the southwestern part of the Proterozoic Vihanti— Pyhäsalmi ...
K. Rasilainen
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Geology and Lithogeochemistry of the Supracrustal Sequence and Interlayered Metabasites of NE Santos Dumont Region (MG) [PDF]
Anuário do Instituto de Geociências, 2017 The region near Santos Dumont town consists of a sequence of interlayered metabasic rocks and supracrustal gneisses. Two lithological units were individualized based on geological-structural mapping (1:50,000), petrography and lithogeochemistry: a ...
Renata Hiraga +5 more
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Strain analysis in the Orijärvi triangle, southwestern Finland; in perspective of tectonic models [PDF]
Bulletin of the Geological Society of Finland, 1999 Finite strain analyses were performed in metavolcanic rocks (agglomerates and pillowed metabasalts) from the Orijärvi area, southwestern Finland. In this area, tight folding (F1) of layered metasedimentary rocks and development of a penetrative axial ...
H. Stel, D. Van Rees, B. Schenke
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