Results 21 to 30 of about 1,706 (214)
The Salittu Formation in southwestern Finland, part II: Picritic-basaltic volcanism in mature arc environment [PDF]
Bulletin of the Geological Society of Finland, 2017 Svecofennian orogen that contain ultramafic rocks. New samples were collected from the picritic and basaltic rocks as well as spatially associated gabbroic rocks, and their major and trace element compositions are presented and discussed here.
M. Nironen
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, 2015 Central Pontides in Northern Turkey is a key area, comprising variably metamorphosed and deformed low-grade metavolcanic rocks. In this study we report the geochemical characteristics of the Kösedağ metavolcanics (KMV), and infer their tectonomagmatic ...
Sayıt, Kaan +2 more
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Journal of the Geological Survey of Brazil, 2023 The Pitangui Synclinorium is located in the northwestern portion of the Quadrilátero Ferrífero mineral province, São Francisco Craton, in southeast Brazil.
Marcelo de Souza Marinho +8 more
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Radiometric ages and other isotopic data bearing on the evolution of Archaean crust and ores in the Kuhmo-Suomussalmi area, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1999 The Archaean greenstone-gneiss terrain in the Kuhmo-Suomussalmi district in eastern Finland has been isotopically studied in connection with regional bedrock mapping and local mineral exploration projects.
M. Vaasjoki, K. Taipale, I. Tuokko
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Early Neoarchean metavolcanic rocks from Jiaobei terrane, North China Craton
, 2023 Zircon U-Pb isotopic dating data of early Neoarchean metavolcanic rocks from Jiaobei terrane, North China Craton
Wei Wang (14561372)
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MineralsThe sulfide mineralization at Xylagani is hosted in metamorphosed mafic massive and pillow lava. It has an Early–Middle Jurassic age and belongs to the Makri unit, which represents the upper crustal section of the Evros ophiolite in the Circum ...
Vasilios Melfos +8 more
core +2 more sources
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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GENETIC AND EXPLORATION IMPLICATIONS OF THE ZINC RATIO [100 Zn/(Zn + Pb)] IN THE RODRUIN PROSPECTING AREA OF THE GOLDEN TRIANGLE -EGYPT [PDF]
Delta Journal of Science, 2022 Rodruin Prospecting Area (26o21/59//N, 33o20/32//) in the Golden Triangle -Egypt, was exploited by the Ancient Egyptian Miners. They exploited gold from gossans and gossanous gold-bearing quartz veins.
Hassan Harraz +3 more
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Stratigraphy of the central parts of the Palaeoproterozoic Tampere Schist Belt, southern Finland: review and revision [PDF]
Bulletin of the Geological Society of Finland, 1998 The arc-type Palaeoproterozoic volcanic-sedimentary Tampere Schist Belt (TSB), close to the centre of the Svecofennian Orogen, comprises an E-W-striking major synform in its central parts.
Y. Kähkönen
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Brazilian Journal of Geology, 2020 Field, petrological and LA-ICP-MS U-Pb geochronological data of metavolcanic rocks were used to interpret the petrological processes and to propose the tectonic setting for the Mundo Novo greenstone belt (MNGB) in the eastern São Francisco Craton.
Ricardo Ramos Spreafico +3 more
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