Results 51 to 60 of about 3,972 (218)
Boreas, EarlyView.We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher +9 more
wiley +1 more source
Evolution and Provenance of the Polish Rotliegend in the Southern Permian Basin
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.Abstract The Southern Permian Basin (SPB) has been extensively explored for ore deposits. However, a comprehensive evaluation of the remaining copper potential, specifically for sediment‐hosted stratiform copper system, remains lacking. This study applies goSPL, an open‐source landscape and stratigraphic evolution model, to reconstruct the Permian rift‐
Beatriz Hadler Boggiani +3 more
wiley +1 more source
Komatiitic explosive volcanism and its tectonic setting in Finland, the Fennoscandian (Baltic) Shield [PDF]
Bulletin of the Geological Society of Finland, 1990 The variously explosive komatiitic volcanism in Finland was virtually confined to the Archaean continental segment, where it occurred in the Lapland and Kuhmo‒ Suomussalmi greenstone belts between 3.0 Ga and 2.5 Ga, in the continental borderland at 1.97 ...
M. Saverikko
doaj +1 more source
High-resolution body wave tomography beneath the SVEKALAPKO array — II. Anomalous upper mantle structure beneath the central Baltic Shield [PDF]
, 2017 A number of different geodynamic models have been proposed to explain the early tectonic evolution of the Baltic Shield. To provide additional geophysical constraints on these models, we performed a teleseismic tomography traveltime inversion for the ...
Ansorge, Joerg +2 more
core
Paleoproterozoic Metamorphism of the Archean Tuntsa Suite, Northern Fennoscandian Shield [PDF]
Minerals, 2020 The Tuntsa Suite is a polymetamorphic Archean complex mainly consisting of metasedimentary gneisses. At least two strong metamorphic events can be distinguished in the area. The first took place at high temperatures in the Neoarchean at around 2.70–2.64 Ga, indicated by migmatisation and U-Pb ages of metamorphic zircon.
Pentti Hölttä +5 more
openaire +2 more sources
Increased Glacier Melt Across Millennia to Hours Enhances Erosion and Sediment Export Processes
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.Abstract Glacial erosion and sediment evacuation are key in shaping polar and mountain landscapes and influencing downstream ecological and social systems. The glacier dynamics and hydrology responsible for these processes are closely linked to hydrological and climatic (hydro‐climatic) conditions.
Ian Delaney +11 more
wiley +1 more source
Ice Phenology and Thickness in Small Arctic Lakes: Field Observations and Mechanistic Controls
Water Resources Research, Volume 62, Issue 1, January 2026.Abstract The Arctic is the fastest‐warming region globally. Lake ice is a sentinel indicator of Arctic change, with wide impacts on hydrological regimes, biodiversity, and ecosystem services. While small lakes are ubiquitous across northern boreal and tundra zones, ice observations remain biased toward large lakes with distinct freezing and melting ...
Ludwig Strötz +4 more
wiley +1 more source
Geothermal Energy, 2021 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 the Fennoscandian Shield are evaluated regarding experiences from drilling, geological conditions, and ...
Jan-Erik Rosberg, Mikael Erlström
doaj +1 more source
8: Precambrian geodynamics and ore formation: The Fennoscandian Shield [PDF]
Ore Geology Reviews, 2005 Abstract Compared with present-day global plate tectonics, Archaean and Palaeoproterozoic plate tectonics may have involved faster moving, hotter plates that accumulated less sediment and contained a thinner section of lithospheric mantle. This scenario also fits with the complex geodynamic evolution of the Fennoscandian Shield from 2.06 to 1.78 Ga ...
Pär Weihed +7 more
openaire +1 more source
Luminescence analysis of a postglacial landscape in northeastern Norway and northern Finland
Boreas, Volume 55, Issue 1, Page 164-181, January 2026.Portable optically stimulated luminescence (pOSL) analysis allows rapid relative dating of sediments that potentially can be calibrated against known OSL ages to provide an age estimate for landforms across a large area. This study uses 186 pOSL measurements and 20 OSL ages to investigate the postglacial landscape evolution inside the Younger Dryas ...
Alastair Goodship +2 more
wiley +1 more source