Structural features and emplacement of the late Svecofennian Perniö granite sheet in southern Finland [PDF]
Bulletin of the Geological Society of Finland, 1996 The 1840-1830 Ma old Perniö granite occupies the southern margin of the Sauvo-Perniö granite area located in the western part of the late Svecofennian granite-migmatite zone in southern Finland.
O. Selonen, C. Ehlers, A. Lindroos
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Геохімія техногенезу, 2020 The article discusses the results of comprehensive studies of the integral and differential geodynamics of the Early Proterozoic Novoukrain-skyi granite gneiss dome, which does not have its own petrological, parametric and specialized analogue on the ...
Semenyuk N. +4 more
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The Veikkola granite area in southern Finland: Emplacement of a 1.83-1.82 Ga plutonic sequence in an extensional regime [PDF]
Bulletin of the Geological Society of Finland, 2008 Four granite intrusions and coeval small enderbite intrusions, belonging to the lateorogenic (1850–1820 Ma) magmatism of the Svecofennian orogeny, are described in the Veikkola area of southern Finland.
M. Nironen, M. Kurhila
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Early Proterozoic stratigraphy of the Salahmi-Pyhäntä area, central Finland, with an emphasis on applying the principles of lithodemic stratigraphy to a complexly deformed and metamorphosed bedrock [PDF]
Bulletin of the Geological Society of Finland, 1988 The medium-highly metamorphozed and intensely deformed early Proterozoic supracrustal rocks of the study area, located at the boundary zone between the Karelian and Svecofennian zones in central Finland, are classified following the recommendations of ...
K. Laajoki, J. Luukas
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Structural observations and U-Pb mineral ages from igneous rocks at the Archaean-Palaeoproterozoic boundary in the Salahmi Schist Belt, central Finland: constraints on tectonic evolution [PDF]
Bulletin of the Geological Society of Finland, 1999 The study area in Vieremä, central Finland, contains part of Archaean-Palaeoproterozoic boundary. In the east, the area comprises Archaean gneiss and the Salahmi Schist Belt. The rocks of the schist belt are turbiditic metagreywackes, with well-preserved
K. Pietikäinen, M. Vaasjoki
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Revista Brasileira de Ciência do Solo, 2009 A região semiárida do Nordeste estende-se por aproximadamente 750 mil km², e em suas áreas Pré-Cambrianas predominam solos rasos e pouco desenvolvidos. Grande parte desses solos é classificada, de acordo com o Sistema Brasileiro de Classificação de Solos,
Lindomário Barros de Oliveira +3 more
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Geofluids, 2021 The spatial distribution of greenschist-facies retrograde reaction products in metabasic gneisses from Iona, western Scotland, has been investigated. The retrograde products may be broadly accounted for by a single reaction, but their different spatial ...
Tim J. Dempster +5 more
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Journal of the Geological Survey of Brazil, 2021 In the Santander Massif of the Eastern Cordillera of Colombia, intense Pliocene to Holocene sulfide-rich gold mineralization occurs in a six kilometers long section of the La Baja fault zone, where it crosses partially migmatized gneisses and intrusions ...
Wilson Scarpelli
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Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example form the Isle of Rum, NW Scotland [PDF]
, 2009 Sr and Nd isotope ratios, together with lithophile trace elements, have been measured in a representative set of igneous rocks and Lewisian gneisses from the Isle of Rum in order to unravel the petrogenesis of the felsic rocks that erupted in the early ...
Ellam, R.M. +5 more
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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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