U-Pb zircon geochronology of selected Archaean migmatites in eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2007 U-Pb SIMS data on eight samples (four mesosome-leucosome pairs) from migmatites in gneiss complexes are presented from the western part of the Archaean Karelian craton, eastern Finland. Most zircon grains in the mesosomes yield ages between 2.84 Ga and 2.
A. Käpyaho +2 more
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Infra-supra structure relations of a microcline-granite dome in the Somero area, Svecofennides, SW Finland [PDF]
Bulletin of the Geological Society of Finland, 1989 Internal structure and deformational history of two granite domains with markedly distinct tectono-metamorphic evolutions occur in the Somero area, SW Finland.
H. Stel +4 more
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Timing of late Palaeoproterozoic metamorphism in the northern Belomorian Belt, White Sea region: Conclusions from U-Pb isotopic data and P-T evidence [PDF]
Bulletin of the Geological Society of Finland, 2001 Brilliant-looking zircon crystals from a garnet-amphibolitic, metamorphosed mafic dyke at Lyagkomina in the Lake Kovdozero area, northern Belomorian Belt, most probably mark the 1875±4 Ma age of peak late Palaeoproterozoic regional metamorphism which ...
T. Skiöld +3 more
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Lethaia, EarlyView., 2021 Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido +4 more
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Relationship between deformation structure and partial melting in pelitic migmatites of Hamaden region, Sanandaj-Sirjan Zone [PDF]
پترولوژیThe present paper describes some field characteristics of deformation in a high-strain and high temperature zone in migmatitic rocks, with several kilometers wide occurring in Hamedan and Toyserkan regions, NW of the Sanandaj- Sirjan Zone.
Seyedeh Razieh Jafari, Leyli Izadi Kian
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Geochemistry, Geophysics, Geosystems, 2021 In our study (Bauville & Yamato, 2021, https://doi.org/10.1029/2020gc009280), we derived simple formulas for pressure‐to‐depth conversion that allow (or not) to take into account deviatoric stresses.
A. Bauville, P. Yamato
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Evolution of migmatitic granulite complexes: Implications from Lapland Granulite Belt, Part I: Metamorphic geology [PDF]
Bulletin of the Geological Society of Finland, 2006 The Palaeoproterozoic Lapland granulite belt was juxtaposed between Archaean and Proterozoic terrains in the NE part of the Fennoscandian Shield concurrently with the accretion of Svecofennian arc complexes at ~1.9 Ga.
P. Tuisku, P. Mikkola, H. Huhma
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MINERALOGY OF HOST ROCKS OF THE OSINOVSKOE GOLD-QUARTZ DEPOSIT (CENTRAL URALS) [PDF]
Минералогия, 2023 The paper describes the mineralogy of mica shales of the Osinovskoe gold deposit in the Central Urals. Our studies unraveled the role of dynamometamorphism in the transformation of primary rocks and allowed the characterization of their metasomatic ...
N.P. Safina, L.Ya. Kabanova, I.A. Blinov
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Research of vitrinite and fusinite coals for predicting geological hazards in coal seams
Мінеральні ресурси України, 2020 To establish the necessity of dividing fossil coals into vitrinitic and fusinitic varieties in order to identify the hazardous properties of coal seams during mining. Methodology.
М. I. Antoshchenko +3 more
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MARBLE DIKES IN THE OLKHON COMPOSITE TERRANE (WEST BAIKAL AREA)
Геодинамика и тектонофизика, 2022 Linear or lens-like carbonate (marble) and carbonate-silicate bodies among gabbro and amphibolites within the Krestovsky subterrane of the Olkhon composite terrane (West Baikal Area) are identified as dikes.
E. V. Sklyarov +2 more
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