Results 71 to 80 of about 5,243 (171)
Crustal structure beneath the Trondelag Platform and adjacent areas of the Mid-Norwegian margin, as derived from wide-angle seismic and potential field data [PDF]
, 2010 The outer mid-Norwegian margin is characterized by strong breakup magmatism and has been extensively surveyed. The crustal structure of the inner continental shelf, however, is less studied, and its relation to the onshore geology, Caledonian structuring,
Breivik, A. J. +5 more
core
Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.Abstract The tectonic attributes of the fossil suture zone are crucial for reconstructing tectonic evolution, but they remain contentious due to inadequate crustal constraints. This study introduces a high‐resolution crustal structure derived from a cost‐effective short‐period dense seismic array across fossil suture zones between the Xing'an and the ...
Dong‐Xue Pan +3 more
wiley +1 more source
A U-Pb zircon age for the Råna intrusion, N. Norway : new evidence of basic magmatism in the Scandinavian Caledonides in Early Silurian time [PDF]
, 1990 Four morphologically distinctive zircon types from quartz-bearing gabbronorite in the Rana intrusion in the Narvik Nappe Complex yield coincident and concordant U-Pb analyses indicating a crystallization age of 437+1-2 Ma.
Barnes, Sarah-Jane +2 more
core +1 more source
Consequences of progressive eclogitization on crustal exhumation, a mechanical study [PDF]
, 2007 The very low water content of the granulitic unit of Holsnøy, in the Bergen Arcs, Norway, caused its partial metastable preservation throughout Caledonian burial end exhumation, leading to the observed mixture of completely eclogitized and uneclogitized ...
Jolivet, Laurent +2 more
core +3 more sources
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract Epidote‐amphibolites form along the plate interface during subduction infancy and are stable in warm, mature subduction zones that generate slow earthquakes. Epidote‐amphibolite rheology therefore likely influences plate‐scale processes during plate boundary formation and grain‐scale processes that give rise to slip transients.
Laurens H. Kleijbeuker +3 more
wiley +1 more source
Proterozoic to Quaternary Events of Fracture Mineralisation and Oxidation in SE Sweden [PDF]
, 2008 Fracture minerals and altered wall rock have been analysed to reveal the low-temperature evolution, especially regarding redox conditions, of the Simpevarp area, SE Sweden.
Drake, Henrik
core +1 more source
Drivers of glacially induced fault reactivation in the Baltic Sea sector of the Tornquist Fan
Boreas, Volume 54, Issue 2, Page 220-245, April 2025.We analyse the effect of Quaternary glaciations on the complex tectonic pattern of the Baltic Sea sector of the Tornquist Fan. Using 2D marine reflection seismic data we determine the strike and dip angles of more than 40 potential glacially reactivated faults and calculated the Coulomb failure stress changes (ΔCFS) over the past 200 000 years.
Elisabeth Seidel +4 more
wiley +1 more source
Biostratigraphie par Acritarches du Cambro-Ordovicien de Belgique et des regions limitotrophes: synthese et perspectives d'avenir [PDF]
, 1992 The stratigraphic significance of Cambrian and Ordovician acritarchs in Belgium and adjacent areas is discussed. It now appears that the age of the Deville group in the Ardenne (more precisely the upper part of this group) should be broadened to include ...
Vanguestaine, M.
core
Silurian-Permian palaeocontinental reconstructions and circum-Atlantic tectonics [PDF]
, 1988 On the basis of the palaeomagnetic record, supplemented by constraints provided by faunal and tectonic information, reconstructions involving Laurentia, Baltica, Gondwana and numerous continent-like fragments and terranes within the circum-Atlantic ...
Kent, Dennis V., Keppie, J. D.
core +2 more sources
Journal of Metamorphic Geology, Volume 43, Issue 3, Page 257-285, April 2025.ABSTRACT Exhumed high‐P/low‐T complexes are of paramount importance to directly access rocks that experienced subduction zone processes. However, the original tectono‐metamorphic fabrics are often partially obliterated by exhumation and later deformation, hindering our understanding of the processes occurring at depth.
Samuele Papeschi +4 more
wiley +1 more source