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Liquation Differentiation of Komatiites: Features of Isotopic–Geochemical Composition of Rocks, Age, and Petrological–Geodynamic Implications (Using the Example of the Kostomuksha Greenstone Structure, Fennoscandian Shield)
AbstractThis paper presents the data on the structure and composition of a concentric-zonal komatiite pillow from the Ruvinvaar Formation of the...
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Age and Stratigraphic Position of a Supracrustal Complex (Kaskama Block, Inari Terrane, Northeastern Kola–Norwegian Region of the Fennoscandian Shield)
AbstractThe U–Th–Pb age (SIMS) of magmatic ( T = 730–744°C) zircon from intermediate and felsic metavolcanics (1923–1926 Ma) of the supracrustal...
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The Great Dyke of the Kola Peninsula as a Marker of an Archean Cratonization in the Northern Fennoscandian Shield
The results of geochronological and petrological studies of the largest mafic dyke in the northern part of the Fennoscandian Shield, called the Great...
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Metasomatic Transformation of Amphibolites into Corundum-Bearing Plagioclasites: Zoning and Numerical Model of the Process with Reference to the Unique Khitostrov Corundum Deposit, Fennoscandian Shield
AbstractThe paper presents results of a study of middle crustal (amphibolite-facies level) desilicated rocks exemplified by corundum-bearing...
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Decoupling of scandium and rare earth elements in organic (nano)particle-rich boreal rivers draining the Fennoscandian Shield
Only few datasets on scandium (Sc) and rare earths and yttrium (REY) in rivers are available and the behaviour of Sc in the hydrosphere is poorly...
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Terrigenous dissolved organic matter persists in the energy-limited deep groundwaters of the Fennoscandian Shield
The deep terrestrial biosphere encompasses the life below the photosynthesis-fueled surface that perseveres in typically nutrient and energy depleted...
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А History of Coronitic Metagabbronorites in the Belomorian Province, Fennoscandian Shield: U-Pb (CA-ID-TIMS) Dating of Zircon–Baddeleyite Aggregates
The estimation of crystallization and metamorphic reworking ages of mafic rocks in the polycyclic Precambrian areas is a difficult problem. Magmatic...
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Paleoseismic Events Reflected in Late Pleistocene and Holocene Deposits of the Terraces of Imandra Lake (Kola Region, Fennoscandian Shield)
AbstractSoft-sediment deformation structures have been identified in glaciolacustrine deposits of the terrace complexes of Imandra Lake (Kola Region,...
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Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities
The deep biosphere is an energy constrained ecosystem yet fosters diverse microbial communities that are key in biogeochemical cycling. Whether...
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Inverse Problem of Magnetotelluric Sounding in the Bear Experiment on the Fennoscandian Shield
AbstractThe paper considers methodological issues of solving the inverse problem of electromagnetic sounding data. A critical analysis of the...
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Biosignatures of ancient microbial life are present across the igneous crust of the Fennoscandian shield
Earth’s crust contains a substantial proportion of global biomass, hosting microbial life up to several kilometers depth. Yet, knowledge of the...
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Thiobacillus as a key player for biofilm formation in oligotrophic groundwaters of the Fennoscandian Shield
Biofilm formation is a common adaptation for microbes in energy-limited conditions such as those prevalent in the vast deep terrestrial biosphere....
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U–Pb Age of Detrital Zircon in the Cement of Early Precambrian Polymict Conglomerates of the Central Karelia Domain, Karelian Province, Fennoscandian Shield
AbstractU–Th–Pb LA-ICP-MS was used for dating detrital zircon extracted from the cement of Neoarchean and Paleoproterozoic polymict conglomerates of...
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Age, Isotopic Features, and Formation Type of Rocks and Ores of the Allarechka Cu–Ni Sulfide Deposit, Fennoscandian Shield
The Neoarchean U-Th-Pb (SHRIMP-II) age of 2718 ± 7 Ma was established for the large copper–nickel Allarechka deposit located in the Kola–Norwegian...
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Evaluation of deep geothermal exploration drillings in the crystalline basement of the Fennoscandian Shield Border Zone in south Sweden
The 3.1- and 3.7-km-deep FFC-1 and DGE-1 geothermal explorations wells drilled into the Precambrian crystalline basement on the southern margin of...
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Re-Os Isotope and HSE Abundance Systematics of the 2.9 Ga Komatiites and Basalts from the Sumozero-Kenozero Greenstone Belt, SE Fennoscandian Shield: Implications for the Mixing Rates of the Mantle
AbstractRhenium-Os isotope and highly siderophile element (HSE, including Re, Os, Ir, Ru, Pt, and Pd) abundance systematics of Archean komatiites can...
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Metamorphic Mineral Reactions and Mineral Assemblages in Rocks of the Meyeri Tectonic Zone, Southeastern Fennoscandian Shield, Russia
AbstractMineral reactions were studied in metamorphic rocks from the Meyeri tectonic zone, and the P–T path of the development of this structure was...
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Erratum to: U–Pb Age of Detrital Zircon in the Cement of Early Precambrian Polymict Conglomerates of the Central Karelia Domain, Karelian Province, Fennoscandian Shield
An Erratum to this paper has been published: https://doi.org/10.1134/S1028334X23050094
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Properties of Fluids during Metasomatic Alteration of Metamorphic Rocks under P–T Conditions of the Middle Crust: An Example from the Bolshie Keivy Region, Belomorian–Lapland Orogen, Fennoscandian Shield
AbstractProperties of fluids under P–T conditions of the middle crust were studied with reference to the metasomatic alteration of metamorphic rocks...
