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Kalak Nappe Complex

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Journal Article

A hyperextension assemblage, imbricated in Archean–Paleoproterozoic crust, at the base of the Kalak Nappe Complex in the northern Scandinavian Caledonides

Fernando Corfu, Torgeir B. Andersen
Published: 21 April 2022
Journal of the Geological Society (2022) 179 (4): jgs2021-140.
DOI: https://doi.org/10.1144/jgs2021-140
.... The resulting lithotectonic fragments, integrated into new collisional orogens, can provide important information about palaeogeography and timing. A rock association with many characteristics of a hyperextension assemblage is present in one of the lowest nappes of the Caledonian Kalak Nappe Complex (KNC...
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Provenance and Terrane Evolution of the Kalak Nappe Complex, Norwegian Caledonides: Implications for Neoproterozoic Paleogeography and Tectonics

Christopher L. Kirkland, J. Stephen Daly, Martin J. Whitehouse
Published: 01 January 2007
The Journal of Geology (2007) 115 (1): 21–41.
DOI: https://doi.org/10.1086/509247
...Christopher L. Kirkland; J. Stephen Daly; Martin J. Whitehouse Abstract The Kalak Nappe Complex (KNC) within the northernmost Arctic Norwegian Caledonides has traditionally been interpreted as representing the tectonically shortened margin of Baltica, consisting of a Precambrian basement and a late...
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Early Silurian magmatism and the Scandian evolution of the Kalak Nappe Complex, Finnmark, Arctic Norway

C.L. Kirkland, J.S. Daly, M.J. Whitehouse
Published: 01 December 2005
Journal of the Geological Society (2005) 162 (6): 985–1003.
DOI: https://doi.org/10.1144/0016-764904-124
...C.L. Kirkland; J.S. Daly; M.J. Whitehouse Abstract Three orogenic events, Porsanger (pre-800 Ma), Finnmarkian (490–540 Ma) and Scandian (400–425 Ma) have been proposed to explain the evolution of the Kalak Nappe Complex, a major component of the Caledonian orogen in Norway. The Kalak Nappe Complex...
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Nd isotopic evidence for exotic detritus in the Kalak Nappe Complex, north Norwegian Caledonides

SUSAN J. AITCHESON
Published: 01 December 1990
Journal of the Geological Society (1990) 147 (6): 923–926.
DOI: https://doi.org/10.1144/gsjgs.147.6.0923
...SUSAN J. AITCHESON Abstract Samples from the Kalak Nappe Complex, north Norwegian Caledonides, have yielded the following ranges of Nd depleted-mantle model ages: orthogneiss 2.8 Ga; paragneisses 1.2-1.8 Ga; and Sørøy Succession metasediments 1.2-2.0 Ga. The presence in the Complex of sedimentary...
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Polyorogenic 40 Ar/ 39 Ar mineral age record within the Kalak Nappe Complex, Northern Scandinavian Caledonides

R. D. DALLMEYER
Published: 01 August 1988
Journal of the Geological Society (1988) 145 (4): 705–716.
DOI: https://doi.org/10.1144/gsjgs.145.4.0705
...R. D. DALLMEYER Abstract The Kalak Nappe Complex is composed of variably retrogressed, middle Proterozoic basement and imbricated, polydeformed, metasedimentary cover successions which, at least in part, appear to have originated within the late Proterozoic-early Palaeozoic Baltoscandian...
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Non-cylindrical folds, linear structures in the X direction and mylonite developed during translation of the Caledonian Kalak nappe complex of Finnmark

S. Rhodes, R. A. Gayer
Published: 01 September 1977
Geological Magazine (1977) 114 (5): 329–341.
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Geological cross-section across the <span class="search-highlight">Kalak</span> <span class="search-highlight">Nappe</span> <span class="search-highlight">Complex</span> and the Barents Sea...

Geological cross-section across the Kalak Nappe Complex and the Barents Sea...

Published: 01 July 2012
Fig. 4. Geological cross-section across the Kalak Nappe Complex and the Barents Sea region of the Varanger Peninsula. A good correlation between the onshore Caledonian thrust-and-fold belt and the prominent NE–SW magnetic trends is observed (see Fig. 3 ). Numbers indicate the susceptibility
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Original stratigraphy of the <span class="search-highlight">Kalak</span> <span class="search-highlight">Nappe</span> <span class="search-highlight">Complex</span> (KNC) comprising a continu...

Original stratigraphy of the Kalak Nappe Complex (KNC) comprising a continu...

Published: 01 January 2007
Figure A1. Original stratigraphy of the Kalak Nappe Complex (KNC) comprising a continuous, regionally correlated Sørøy Succession, after Ramsay ( 1971 ) and Roberts ( 1968 a ). Right , Modified stratigraphy in part after Kirkland et al. ( 2005 b ), a ; Slagstad et al. ( 2006 ), b
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Simplified tectonostratigraphy of the <span class="search-highlight">Kalak</span> <span class="search-highlight">Nappe</span> <span class="search-highlight">Complex</span>, schematically il...

Simplified tectonostratigraphy of the Kalak Nappe Complex, schematically il...

Published: 01 December 2005
Fig. 2.  Simplified tectonostratigraphy of the Kalak Nappe Complex, schematically illustrating the location of intrusive granites and the volcaniclastic psammite within the Hellefjord Schist. It should be noted that the term ‘Sørøy Succession’ refers only to the Klubben Psammite and Storelv
Journal Article

K-Ar and 40 Ar/ 39 Ar whole-rock ages of slate/phyllite from allochthonous basement and cover in the tectonic windows of Finnmark, Norway: Evaluating the extent and timing of Caledonian tectonothermal activity

R. D. DALLMEYER, J. G. MITCHELL, T. C. PHARAOH, A. REUTER, A. ANDRESEN
Journal: GSA Bulletin
Published: 01 September 1988
GSA Bulletin (1988) 100 (9): 1493–1501.
DOI: https://doi.org/10.1130/0016-7606(1988)100<1493:KAAAAW>2.3.CO;2
... retention temperatures at ca. 1700-1800 Ma following the Sveco-karelian orogeny. The extent of whole-rock spectra discordancy is related to the proximity of the basal thrust of the structurally overlying Kalak Nappe Complex. Whole-rock sample suites were also collected structurally downward (0.6-20 m) from...
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Carbonate isotope chemostratigraphy suggests revisions to the geological history of the West Finnmark Caledonides, northern Norway

T. Slagstad, V.A. Melezhik, C.L. Kirkland, K.B. Zwaan, D. Roberts, I.M. Gorokhov, A.E. Fallick
Published: 01 March 2006
Journal of the Geological Society (2006) 163 (2): 277–289.
DOI: https://doi.org/10.1144/0016-764905-021
...T. Slagstad; V.A. Melezhik; C.L. Kirkland; K.B. Zwaan; D. Roberts; I.M. Gorokhov; A.E. Fallick Abstract Strontium and carbon isotopic data from amphibolite-facies marbles of the Falkenes formation, Sørøy succession (structurally upper Kalak Nappe Complex) in West Finnmark, northern Norway, indicate...
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Geophysical investigation of the Honningsvåg igneous complex, Scandinavian Caledonides

T. H. TORSVIK, O. OLESEN, A. TRENCH, T. B. ANDERSEN, H. J. WALDERHAUG, M. A. SMETHURST
Published: 01 June 1992
Journal of the Geological Society (1992) 149 (3): 373–381.
DOI: https://doi.org/10.1144/gsjgs.149.3.0373
... the underlying Kalak nappe complex. It is therefore inferred that the Scandian emplacement of the Magerøy nappe was synchronous with a thermal event which affected the older and underlying Finnmarkian-defor-med Kalak nappe complex. References Aitcheson S. J. Daly J. S. Cuff R. A. A late...
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Age and significance of Grenvillian and Silurian orogenic events in the Finnmarkian Caledonides, northern Norway This article is one of a series of papers published in this Special Issue on the theme of Geochronology in honour of Tom Krogh.

F. Corfu, M. Gerber, T. B. Andersen, T. H. Torsvik, L. D. Ashwal
Published: 23 February 2011
Canadian Journal of Earth Sciences (2011) 48 (2): 419–440.
DOI: https://doi.org/10.1139/E10-043
... data obtained by ID–TIMS (isotope dilution – thermal ionization mass spectrometry) on zircon, titanite, and monazite from plutonic and metamorphic rocks. The Gjesvær Migmatite Complex of the Kalak Nappe Complex is shown to be of Grenvillian age, with granite and leucosome emplaced at about 970 Ma...
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Age of alkaline rocks in the Seiland Igneous Province, Northern Norway

R.J. Roberts, F. Corfu, T.H. Torsvik, C.J. Hetherington, L.D. Ashwal
Published: 01 January 2010
Journal of the Geological Society (2010) 167 (1): 71–81.
DOI: https://doi.org/10.1144/0016-76492009-014
... evidence of new zircon growth during the Caledonian metamorphism. The carbonatite was emplaced into the Kalak Nappe Complex at 574 ± 5 Ma, and various alkaline gneisses and nepheline syenite dykes intruded the neighbouring Breivikbotn Gabbro and its metasedimentary host between 580 and 560 Ma. The alkaline...
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The Finnmarkian phase of the Caledonian Orogeny

B. A. Sturt, I. R. Pringle, D. M. Ramsay
Published: 01 December 1978
Journal of the Geological Society (1978) 135 (6): 597–610.
DOI: https://doi.org/10.1144/gsjgs.135.6.0597
...B. A. Sturt; I. R. Pringle; D. M. Ramsay Abstract The Kalak nappe complex of N Norway involves late Precambrian to Middle Cambrian sediments and a Precambrian gneiss basement on which the sediments were deposited. While the uppermost nappe in Finnmark was emplaced during the Silurian the members...
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Geochronological evidence from discordant plutons for a late Proterozoic orogen in the Caledonides of Finnmark, northern Norway

J. S. DALY, S. J. AITCHESON, R. A. CLIFF, R. A. GAYER, A. H. N. RICE
Published: 01 February 1991
Journal of the Geological Society (1991) 148 (1): 29–40.
DOI: https://doi.org/10.1144/gsjgs.148.1.0029
...J. S. DALY; S. J. AITCHESON; R. A. CLIFF; R. A. GAYER; A. H. N. RICE Abstract Rb-Sr whole-rock, Sm-Nd mineral and U-Pb zircon dates are reported for minor 0granites and Seiland Igneous Province gabbros in the Kalak Nappe complex (Middle Allochthon), northern Norwegian Caledonides. The Litlefjord...
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Attempted break-up of Rodinia at 850 Ma: geochronological evidence from the Seve–Kalak Superterrane, Scandinavian Caledonides

OSKAR PAULSSON, PER-GUNNAR ANDRÉASSON
Published: 01 December 2002
Journal of the Geological Society (2002) 159 (6): 751–761.
DOI: https://doi.org/10.1144/0016-764901-156
... swarm. The age pattern allows correlation with a previously dated magmatic complex within the equivalent Kalak Nappe Complex 300 km to the north. Bimodal magmatic complexes with this age pattern do not occur within the basement of the Caledonide foreland, nor elsewhere within the Baltic Shield. However...
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The Caledonian and related geology of Scandinavia

R. A. GAYER, C. TOWNSEND
Published: 01 August 1988
Journal of the Geological Society (1988) 145 (4): 717–718.
DOI: https://doi.org/10.1144/gsjgs.145.4.0717
... of c. 800Ma for granite bodies which cross-cut folds in the Kalak Nappe Complex, suggesting that the Klubben Group metasediments and the deformation © Geological Society of London 1988 1988 Geological Society of London Geological Society of London Journal of the Geological Society, London, Vol...
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Major tectonic elements in late Ordovician to late Silurian evolution of th...

Major tectonic elements in late Ordovician to late Silurian evolution of th...

Published: 01 December 2005
Fig. 16.  Major tectonic elements in late Ordovician to late Silurian evolution of the Kalak Nappe Complex. ( a ) Proposed formation of granites within Hellefjord Schist formation, located proximal to Laurentia and within a rifting back-arc basin setting associated with slab rollback. ( b
Journal Article

Short-lived mafic magmatism at 560–570 Ma in the northern Norwegian Caledonides: U–Pb zircon ages from the Seiland Igneous Province

R. J. ROBERTS, F. CORFU, T. H. TORSVIK, L. D. ASHWAL, D. M. RAMSAY
Published: 01 November 2006
Geological Magazine (2006) 143 (6): 887–903.
DOI: https://doi.org/10.1017/S0016756806002512
... age data also clearly distinguish the Seiland intrusions, emplaced into the Sørøy Group metasediments of the Kalak Nappe Complex, from several older granitic intrusions ( c. 850 to 600 Ma) that cut the Sørøy Group farther east and south. The coincident ages of the different Seiland intrusive bodies...
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