Relationships between sanukitoids and crust-derived melts and their implications for the diversity of Neoarchaean granitoids: A case study from Surmansuo and nearby areas, Eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2014 We present new isotopic data (U-Pb and Sm-Nd) from the Neoarchean granitoids of the Lentua complex, which is a part of the Western Karelia subprovince of the Fennoscandian Shield.
P. Mikkola, E. Heilimo, H. Huhma
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Rb-Sr whole-rock isotopic study of late Archaean and early Proterozoic granitoid intrusions, Kainuu, Eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1988 A tonalite-granodiorite-granite suite emplaced during the late Archaean D3 deformational phase yields a six point isochron age of 2,500 ± 270 Ma and an initial 87Sr/86Sr of 0.7044 ±0.0018.
A.N. Halliday +2 more
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The absolute age of the globular cluster M15 using near-infrared adaptive optics images from PISCES/LBT [PDF]
, 2015 We present deep near-infrared (NIR) J, Ks photometry of the old, metal-poor Galactic globular cluster M\,15 obtained with images collected with the LUCI1 and PISCES cameras available at the Large Binocular Telescope (LBT).
Arcidiacono, C. +28 more
core +3 more sources
, 1998 A minimum age of the universe can be estimated directly by determining the age of the oldest objects in the our Galaxy. These objects are the metal-poor stars in the halo of the Milky Way.
Chaboyer, Brian
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Timing of Svecofennian crustal growth and collisional tectonics in Åland, SW Finland [PDF]
Bulletin of the Geological Society of Finland, 2004 In an effort to quantify the time parameter in the tectonomagmatic evolution of what has been called the Southern Svecofennian Arc Complex (SSAC) of SW Finland, advanced radiometric dating techniques have here been applied to rock groups of key ...
C. Ehlers, T. Skiöld, M. Vaasjoki
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Mid- and late-Holocene shoreline changes along the southern coast of the Gulf of Finland [PDF]
Bulletin of the Geological Society of Finland, 2013 In response to glacio-isostatic rebound in Estonia, a relative sea level fall occurred during the mid- and late-Holocene, and as a result, lowland regions in northern Estonia have experienced an evolution from sea to land.
I. Grudzinska +3 more
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A note on a thermokarst feature on the North Slope of Alaska [PDF]
Bulletin of the Geological Society of Finland, 1994 A thermokarst depression with active thermal erosion on one margin and a drainage way to the Sagavanirktok River is described with the aid of a sketch plan and sections.
R.G. West, J.J. Donner, T. Kankainen
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SIMS zircon ages and Nd isotope systematics of the 2.2 Ga mafic intrusions in northern and eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2010 Using the SIMS, ID-TIMS and Sm-Nd isotopic methods and the electron microprobe, we have studied several differentiated mafic intrusions of the c. 2.2 Ga gabbro-wehrlite association (GWA) from four Paleoproterozoic schist belts and the Archean Kuhmo ...
E. Hanski, H. Huhma, J. Vuollo
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, 2013 Determining the sequence of events in the formation of stars and planetary systems and their time-scales is essential for understanding those processes, yet establishing ages is fundamentally difficult because we lack direct indicators. In this review we
Hillenbrand, Lynne A. +4 more
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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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