The occurrence of rare earth elements in some Finnish mires [PDF]
Bulletin of the Geological Society of Finland, 1995 The content of the more abundant rare earths (RE) (Y, La, Ce, Pr, Nd and Sm) in the ash of 399 peat samples from 26 Finnish mires was determined by X-ray fluorescence spectrometry.
I. Yliruokanen, S. Lehto
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Re-evaluation of Rapakivi Petrogenesis: Source Constraints from the Hf Isotope Composition of Zircon in the Rapakivi Granites and Associated Mafic Rocks of Southern Finland [PDF]
, 2010 VertaisarvioitupeerReviewe
Andersen, T. +2 more
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Fluid history from crystal cavities in rapakivi, Pyterlahti, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 The crystal cavities lined with quartz, feldspars, biotite, fluorite and a number of accessory phases occurring in the Haikonvuori pyterlite quarry in the Wiborg rapakivi massif were studied with mineralogical, petrographical and chemical methods ...
K. Kinnunen, K. Lindqvist, R. Lahtinen
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Paleoceanography and Paleoclimatology, Volume 35, Issue 12, December 2020., 2020 Abstract Variations in depositional rates affect the temporal depositional resolutions of proxies used for paleoenvironmental reconstructions; for example, condensation can make reconstructed environmental changes appear very abrupt. This is commonly addressed by transforming proxy data using age models, but this approach is limited to situations where
E. Jarochowska +5 more
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Geology Today, 2007 Rapakivi granites, especially the famous rapakivis from southern Finland, are some of the most attractive building and decorative stones, used world‐wide because of their striking textures and beautiful colours. But rapakivi granites are more than just building material, they have also been studied scientifically for over 100 years to try to explain ...
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Journal of Geophysical Research: Solid Earth, Volume 125, Issue 4, April 2020., 2020 Abstract Detailed geochronological, geochemical, and paleomagnetic studies of mafic dyke swarms, often associated with mantle plumes, can provide unique constraints on paleogeographic reconstructions. Mafic dykes with baddeleyite U–Pb ages of 1,233 ± 27 Ma (SIMS), 1,206.7 ± 1.7 Ma (TIMS), 1,214.0 ± 4.9 Ma (TIMS), and 1,236.3 ± 5.4 Ma (TIMS) have been ...
Chong Wang +7 more
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Geochronology of the Suomenniemi rapakivi granite complex revisited: Implications of point-specific errors on zircon U-Pb and refined λ87 on whole-rock Rb-Sr [PDF]
Bulletin of the Geological Society of Finland, 2015 Multi-grain isotope dilution and secondary ion microprobe zircon U-Pb as well as wholerock Rb-Sr isotope dilution data on the late Paleoproterozoic Suomenniemi rapakivi granite complex (exposed on the northern flank of the Wiborg batholith in ...
O.T. Rämö, I. Mänttäri
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Fluid inclusions in cavity quartz crystals in rapakivi from Luumäki, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1991 Fluid inclusions in selected cavity quartz crystals in rapakivi granite from Luumäki, southeastern Finland, were studied by microthermometric methods.
M. Poutiainen
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The Proterozoic granitoids of Finland: Granite types, metallogeny and relation to crustal evolution [PDF]
Bulletin of the Geological Society of Finland, 1986 The granitoids are divided into four main groups: synkinematic (1860‒1930 Ma, most commonly 1870‒1890 Ma), late-kinematic (1800‒1850 Ma) and postkinematic (ca. 1800 Ma) Svecokarelian granitoids, and anorogenic rapakivi granites (1540‒1700 Ma).
P.A. Nurmi, I. Haapala
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The crystalline basement of Estonia: rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlations [PDF]
, 2009 New data on the Fennoscandian Shield and the Baltic area suggest a need for reinterpretation of the stratigraphy of Estonian Precambrian rock complexes.
Kirs, Juho +7 more
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