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Finnmarkian Orogeny

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Series: GSA Special Papers
Published: 01 January 1989
DOI: 10.1130/SPE230-p31
... The Penobscot orogeny in the Appalachians, the Grampian orogeny in the British Isles, and the Finnmarkian orogeny in the Scandinavian Caledonides are Late Cambrian–Early Ordovician events that characterize terranes having similar pre- and post-deformation features. Together they record a major...
Journal Article
Published: 01 October 1979
Journal of the Geological Society (1979) 136 (5): 619-620.
Journal Article
Published: 01 December 1978
Journal of the Geological Society (1978) 135 (6): 597-610.
... of the Kalak nappe complex were emplaced in late Cambrian/early Ordovician times during the Finnmarkian orogenic stage—probably the analogue of the Grampian stage of the British Caledonian. The tectonic-metamorphic events of the Finnmarkian stage were broadly coeval with the emplacement of basic and alkaline...
Journal Article
Published: 01 March 2001
Journal of the Geological Society (2001) 158 (2): 321-329.
... relate this to the early Caledonian Finnmarkian Orogeny which involved arc–continent collision following subduction. 02 10 2000 01 02 2000 © 2001 The Geological Society of London 2001 Red siltstone samples from the Red and Green Siltstone Member (sites 4 & 5) have NRM...
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Journal Article
Journal: Geology
Published: 01 January 1991
Geology (1991) 19 (1): 7-10.
... by the counterclockwise rotation of Baltica relative to Avalonia in Early to Middle Ordovician time. This rotation, initiated in Late Cambrian-Early Ordovician time, was coeval with the Finnmarkian orogeny in the northern Scandinavian Caledonides. Geological Society of America 1991 ...
Journal Article
Published: 23 February 2011
Canadian Journal of Earth Sciences (2011) 48 (2): 419-440.
.... Sturt et al. (1978) had proposed that part of the nappes had been thrust already in the Cambrian during the Finnmarkian phase of the Caledonian orogeny as part of a polyphasal collision process concluded by the Scandinavian (now referred to as the Scandian) phase in the Silurian ( Ramsay and Sturt 1976...
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Journal Article
Published: 01 December 2005
Journal of the Geological Society (2005) 162 (6): 985-1003.
... of the Caledonian Orogeny are recognized: an earlier Finnmarkian event at c . 490 Ma and a later Scandian event at c . 420 Ma, although this chronology and the relative importance of these events are controversial ( Sturt et al . 1978 ; Andersen et al . 1982 ; Dallmeyer 1988 a ; Krill et al . 1988 ; Rice...
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Series: GSA Memoirs
Published: 01 September 2010
DOI: 10.1130/2010.1206(01)
... of a Neoproterozoic to early Paleozoic rifted margin and platform succession on the southeastern margin of Laurentia. Three orogenies ultimately produced the mountain chain: the Ordovician Taconic orogeny, which involved arc accretion; the Acadian–Neoacadian orogeny, which involved north-to-south, transpressional...
Journal Article
Published: 01 February 1991
Journal of the Geological Society (1991) 148 (1): 29-40.
..., MSWD 0.1) and Storvik (Sm-Nd WR/minerals 604 ± 44 Ma, MSWD 0.2) gabbros cut ‘basement' paragneisses. The main (Dl–D2) deformation affecting the Sbrcby Succession in the Kalak Nappe complex, which was previously attributed to the early Ordovician Finnmarkian phase of the Caledonian orogeny, took place...
Series: AAPG Memoir
Published: 01 January 1988
DOI: 10.1306/M43478C1
EISBN: 9781629811338
... Abstract The late Caledonian megatectonic framework of the Arctic-North Atlantic area and its borderlands is summarized in Plate 1. The Caledonian orogenic cycle spanned Late Cambrian to earliest Devonian times. It embraced the Late Cambrian to Early Ordovician Grampian/Finnmarkian, the mid...
Journal Article
Published: 01 November 2000
Journal of the Geological Society (2000) 157 (6): 1149-1154.
...W. S. McKERROW; C. MAC NIOCAILL; J. F. DEWEY Abstract Recent advances in our understanding of Palaeozoic tectonics, and in the precise dating of tectonic events require exact definitions of terminology. The Caledonian Orogeny is here redefined to include all the Cambrian, Ordovician, Silurian...
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Journal Article
Journal: Geology
Published: 01 October 2002
Geology (2002) 30 (10): 883-886.
... Scandian orogeny, in which eastward thrusting of allochthonous terranes over Baltica was followed by extensional collapse and exhumation. New fieldwork and U-Pb geochronology coupled with recent pressure-temperature estimates within the highest thrust sequence of the Caledonian orogen indicate...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP390.9
EISBN: 9781862396661
... and Ordovician phases of the Caledonian orogeny (Finnmarkian event 520–505 Ma and Taconian event 470–450 Ma; Roberts 2003 ). These include the Seve Nappe Complex at the base of the upper allochthon, which is thought to have been derived from the outer margin of the Baltic Shield ( Gee 1975 ) from the transition...
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Series: GSA Memoirs
Published: 01 January 2007
DOI: 10.1130/2007.1200(18)
... Ordovician to Early Silurian successor basins prior to Laurentia-Baltica collision and the onset of the Scandian orogeny. The Taconian thrust sheets were then detached from their Laurentian roots and incorporated into the Siluro-Devonian, Scandian orogenic wedge on the Baltoscandian margin of Baltica. Taking...
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Journal Article
Published: 01 October 1992
Journal of the Geological Society (1992) 149 (5): 727-741.
... Binns R. E. Gayer R. A. Regional correlations in NE Troms-W Finnmark: the demise of the ‘FinnmarkianOrogeny? The Caledonide Geology of Scandinavia 1989 London Graham & Trotman Ltd 27 45 Binns R. E. Gayer R. A. Silurian or Upper Ordovician fossils at Guolasjav’ri...
Journal Article
Published: 01 June 1980
Journal of the Geological Society (1980) 137 (3): 241-250.
...D. Roberts; B. A. Sturt Abstract Geological research and mapping over the last decade has led to a reassessment of the Caledonian orogen in Norway. Two principal stages of orogenesis are now established: (1) a late Cambrian to early Ordovician Finnmarkian or Grampian event recognized mainly...
Journal Article
Published: 01 June 1992
Journal of the Geological Society (1992) 149 (3): 373-381.
... of orogenic deformation and metamorphism Geological Society of America Bulletin 1975 86 710 718 Sturt B. A. Ramsay D.M. The Finnmarkian phase of the Caledonian Orogeny Journal of the Geological Society, London 1978 135 597 610 Torsvik T. H. Olesen O. Ryan P. D...
Series: GSA Field Guides
Published: 29 March 2018
DOI: 10.1130/2018.0050(09)
EISBN: 9780813756509
...., 2007 ). The Caledonides of Britain and Scandinavia record only two major accretionary events, the Late Cambrian–Early Ordovician Grampian–Finnmarkian orogeny and the Late Ordovician–Silurian Caledonian–Scandian orogeny (e.g., Andréasson et al., 1998 ; Roberts et al., 2007 ). This history contrasts...
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Series: Geological Society, London, Geology of Series
Published: 01 January 2008
DOI: 10.1144/CEV1P.7
EISBN: 9781862393929
... The following sections will outline the various large-scale elements of the Caledonian Orogeny sensu lato as well as the palaeontological, structural and other evidence from surface outcrops and borehole data. All of this provides the main framework for the orogeny, but it fails...
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Journal Article
Published: 01 January 2007
Journal of the Geological Society (2007) 164 (1): 117-128.
... metamorphosed at the same time. These ages coincide with the Finnmarkian Orogeny, which is a major orogenic event believed to have affected much of the Northern Scandinavian Caledonides. The Sm–Nd mineral ages are corroborated by U–Pb ages from titanites in associated rocks ( Essex et al . 1997 ) and Ar–Ar...
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