Results 81 to 90 of about 3,972 (218)

Radioisotopic age constraints of the Cambrian Ritland impact structure, Norway

Meteoritics &Planetary Science, Volume 60, Issue 9, Page 2223-2238, September 2025.
Abstract Secondary ion mass spectrometry U‐Pb geochronology has been performed on zircon grains separated from impact melt rock from the 2.7 km‐in‐diameter Ritland impact structure, southwestern Norway. Scanning electron microscope‐based imaging techniques, including electron backscatter diffraction analysis, reveal various zircon grain microtextures ...
William R. Hyde, Steven J. Jaret, Gavin G. Kenny, Anders Plan, Elias J. Rugen, Martin J. Whitehouse, Sanna Alwmark   +6 more
wiley   +1 more source

Revisit of the Fennoscandian Shield along the UPPLAND seismic profile: competitive velocity models [PDF]

Solid Earth
This paper presents a comprehensive re-analysis of seismic data collected along the UPPLAND profile in the Fennoscandian Shield, focusing on the competitive velocity models for P-wave (Vp) and S-wave (Vs) velocities and the Vp/Vs ratio.
T. Janik, R. Lahtinen, M. Bociarska, P. Środa, D. Wójcik   +4 more
doaj   +1 more source

Rifting in heterogeneous lithosphere inferences from numerical modeling of the northern North Sea and the Oslo Graben. [PDF]

, 2002
Permian rifting and magmatism are widely documented across NW Europe. The different Permian basins often display contrasting structural styles and evolved in lithospheric domains with contrasting past evolution and contrasting thermotectonic ages.
Andersen, Andersen, Artemieva, Babuška, Balling, Bassi, Bingen, Bjørlykke, Braun, Breitkreuz, Buck, Burov, C. Pascal, Calcagnile, Cameron, Carmichael, Carter, Cassel, Cederbom, Cederbom, Christiansson, Cloetingh, Dixon, Doblas, Doré, Dunlap, Eide, Eide, England, Faerseth, Faerseth, Fossen, Fossen, Frederiksen, Gabrielsen, Gaál, Govers, Guggisberg, Heeremans, Heeremans, Hospers, Hospers, Huismans, Husebye, Kanestrøm, Kinck, Kooi, Kukkonen, Lidmar-Bergström, Lie, McKenzie, Morley, Mykura, Neumann, Odinsen, Oftedahl, Olaussen, Pallessen, Pascal, Pearson, Pedersen, Pedersen, Pharaoh, Plomerová, Poudjom Djomani, Ramberg, Ranalli, Ro, Roberts, Rohrman, Rohrmann, S. A. P. L. Cloetingh, Steel, Steel, Stovba, Sundvoll, Sundvoll, Surlyk, Swensson, Thybo, Torsvik, Tryti, Vecsey, Williams, Ziegler   +84 more
core   +3 more sources

Multi‐million‐year evolution of the Greenland Ice Sheet in Inglefield Land, North Greenland

Journal of Quaternary Science, Volume 40, Issue 6, Page 1056-1069, August 2025.
ABSTRACT Information on past sensitivity of the Greenland Ice Sheet to climate change is of importance for optimizing models simulating the future evolution of ice mass loss. While the ice‐sheet change during the Lateglacial and Holocene is relatively well constrained, the long‐term (multi‐million‐year) evolution of the Greenland Ice Sheet remains ...
Anne Sofie Søndergaard, Jane Lund Andersen, Nicolaj Krog Larsen, Olivia Steinemann, Negar Haghipour, Jesper Olsen, David Lundbek Egholm   +6 more
wiley   +1 more source

The geology and geophysics of the Oslo rift [PDF]

The regional geology and geophysical characteristics of the Oslo graben are reviewed. The graben is part of a Permian age failed continental rift. Alkali olivine, tholefitic, and monzonitic intrusives as well as basaltic lavas outline the extent of the ...
Ruder, M. E.
core   +1 more source

Neoarchean sanukitoid series in the Karelian Province, Finland [PDF]

, 2011
Sanukitoid series intrusions can be found throughout the Archean Karelian Province of the Fennoscandian shield. All sanukitoids share the same controversial elemental characteristics: they have high content of incompatible elements such as K, Ba, and Sr ...
Heilimo, Esa
core  

Late Svecofennian leucogranites of southern Finland : Chronicles of an orogenic collapse [PDF]

, 2011
Leucogranite magmatism occurred in southern Finland during the later stages of the Paleoproterozoic Svecofennian orogeny. The leucogranites are considered to have formed from pre-existing crustal rocks that have undergone anatexis in the extensional ...
Kurhila, Matti
core  

Cosmogenic Production, Sea Level and Tephra Signals in 10Be From Black Sea Sediments During Termination 2

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract We aim to isolate predominantly solar modulated (multi‐decadal to centennial) production changes in a 10Be record from Black Sea sediments covering Termination 2. In addition to the effects of varying climate and sedimentation, sea level rise and tephra‐driven Be relocation introduced non‐production biases into our 10Be (and 9Be) records ...
Markus Czymzik, Marcus Christl, Helge W. Arz   +2 more
wiley   +1 more source

A Mechanistic Look at the Amphibolitization of Mafic Crust: Insights From the Kråkeneset Gabbro Body, Western Gneiss Region, Norway

Journal of Metamorphic Geology, Volume 43, Issue 4, Page 385-405, May 2025.
ABSTRACT Fluid–rock interactions play a key role in the formation, evolution and recycling of the Earth's crust. For fluids to infiltrate rocks and enable and sustain fluid‐mediated mineral transformations, fluid pathways are required. In this study, we examined the potential mechanisms of formation of such pathways via detailed mineralogical ...
Saskia Grund, Timm John, Johannes C. Vrijmoed, Håkon Austrheim, Torgeir B. Andersen   +4 more
wiley   +1 more source

Scheme of mineral facies of metamorphic rocks and its application to the Fennoscandian shield with representative sites of orogenic gold mineralization

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
Our recent studies of metamorphism within the Fennoscandian (or Baltic) Shield area with representative sites of orogenic gold mineralization based on the scheme of mineral facies of metamorphic rocks introduced earlier inspired thorough revision of that
Сергей Алексеевич Бушмин, Виктор Андреевич Глебовицкий, Sergey Bushmin, Viktor Glebovitsky   +3 more
doaj   +1 more source