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Tromso Nappe

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Journal Article
Published: 01 June 2015
European Journal of Mineralogy (2015) 27 (3): 377-392.
...) and the Tromsø Nappe (Northern Scandinavian Caledonides). The concentrations of Cr 2 O 3 in kyanite and magnesiostaurolite from the Pohorje Mts. (17.0 and 15.0 wt%, respectively) are the highest Cr values ever reported for these minerals, and the Cr content of corundum from this area (≤12.2 wt% Cr 2 O 3 ) also...
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Journal Article
Published: 01 October 2014
European Journal of Mineralogy (2014) 26 (5): 623-634.
... eclogites in the Tromsø Nappe of the Scandinavian Caledonides in Norway. The apatite-rich rock (up to 10 vol. %) is composed of Mg-rich calcite-dolomite exsolutions, almandine-grossular garnet, low-jadeite clinopyroxene, magnesiohornblende, phlogopite, and accessory minerals represented mainly by zircon, Fe...
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Image
Photographs of Cr-rich eclogites from Pohorje and <b>Tromsø</b> <b>Nappe</b>. (a) Type-1 ...
Published: 01 June 2015
Fig. 3. Photographs of Cr-rich eclogites from Pohorje and Tromsø Nappe. (a) Type-1 eclogite from Pohorje. (b) Type-1 eclogite from the Tromsø Nappe. Garnet is pinkish-red, omphacite is pale green, kyanite is blue, amphibole is dark-green and zoisite is white. (c, d) Type-2 eclogite from Pohorje
Journal Article
Published: 01 January 2007
Journal of the Geological Society (2007) 164 (1): 117-128.
... metamorphic events affected this margin prior to the final closure of Iapetus during the 430–400 Ma Scandian Orogeny. The c . 458 Ma ages are nearly identical to ages determined from the eclogite-bearing Tromsø Nappe of the uppermost allochthon. The uppermost allochthon is generally considered part...
FIGURES
Journal Article
Journal: Geosphere
Published: 01 February 2011
Geosphere (2011) 7 (1): 202-218.
.... Middle Ordovician eclogites of Scandinavia are contemporaneous with Taconic eclogites found in thrust nappes of the Appalachian Orogen. If the Lofoten eclogites correlate to those in the Tromsø Nappe Complex (Uppermost Allochthon), then both terranes might represent Laurentian relics emplaced during...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP390.19
EISBN: 9781862396661
... Allochthon are the c. 450 Ma eclogite-bearing Tromsø Nappe ( Krogh et al. 1990 ; Corfu et al. 2003 ), the fossiliferous Balsfjord Group ( Binns & Matthews 1981 ; Bjørlykke & Olaussen 1981 ; Bergh & Andresen 1985 ), the largest ophiolite complex in the Scandinavian Caledonides (Lyngen...
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Journal Article
Published: 01 November 2014
Journal of the Geological Society (2014) 171 (6): 831-846.
...-angle normal faults, which down-drop Caledonian nappes, to the east ( Andresen & Forslund 1987 ; Zwaan 1995 ; Davids et al . 2013 ; Indrevær et al . 2013 ). The West Troms Basement Complex is made up of various Meso- and Neoarchaean tonalitic, trondhjemitic and granitic gneisses and meta...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP390.4
EISBN: 9781862396661
... for the Tromsø nappe v. constrictional stretching in a strike-slip-dominated regime for the Richarddalen Complex. Further constraints from Richarddalen Complex on the age of eclogite facies metamorphism, as well as the character and timing of exhumation-related deformation and metamorphism, will be critical...
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Journal Article
Published: 01 January 2010
Journal of the Geological Society (2010) 167 (1): 83-98.
... ; Askvik & Rokoengen 1985 ). Even though the Western Gneiss Region contains abundant heterogeneities such as infolded remnants of Caledonian nappe rocks and bodies of pristine and variably retrograde eclogite (e.g. Kildal 1970 ; Robinson 1995 ), there is no obvious relationship between bedrock...
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Journal Article
Journal: GSA Bulletin
Published: 01 August 2002
GSA Bulletin (2002) 114 (8): 934-949.
...Steffen G. Bergh Abstract The San Juan thrust system makes up the western elements of the Late Cretaceous Northwest Cascades orogen of Washington, a stack of metamorphic nappes with terranes ranging in age from early Paleozoic to middle Cretaceous. The tectonic development of the nappes...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 1988
GSA Bulletin (1988) 100 (9): 1493-1501.
... 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...
Journal Article
Published: 01 November 2000
Geological Magazine (2000) 137 (6): 609-621.
... were emplaced from west–northwest across this basement ( Binns, 1978 ; Andresen et al. 1985 ). The Caledonian allocthon in Troms is subdivided into different nappe complexes, of which the most important are the Lyngen nappe, the Nakkedal nappe and the Tromsø nappe ( Zwaan & Grogan, 1998...
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Journal Article
Published: 01 March 2011
Journal of the Geological Society (2011) 168 (2): 423-439.
... 1985 ), showing the position of the nappe supergroups and the Ordovician eclogite occurrences in the Tromsø nappe (TN), the Lofoten terrane (LT), the Seve Nappe (Norrbotten terrane, NT; Jämtland–Västerbotten terrane, JVT), and ( b ) the Jæren nappe and its bounding rock units (after Maijer et al...
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Journal Article
Published: 01 October 2010
Italian Journal of Geosciences (2010) 129 (3): 353-384.
...Francesco Massari; Giacomo Prosser; Luca Capraro; Eliana Fornaciari; Chiara Consolaro Abstract The Crotone Basin, located on a stack of nappes piled up during the late Paleogene-Neogene, formed in the late Neogene to Quaternary as a forearc basin of the Ionian arc-trench system. The process of slab...
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Journal Article
Published: 01 November 2000
American Mineralogist (2000) 85 (11-12): 1637-1650.
... Devonian collision between Baltica and Laurentia. A structurally higher plate, regionally correlated with the Blåhø Nappe, contains kyanite eclogites associated with microdiamond-bearing kyanite-garnet-graphite gneiss on the north coast of Fjørtoft and correlated with kyanite eclogites at Nogva, Flemsøya...
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Journal Article
Journal: Geology
Published: 01 March 2016
Geology (2016) 44 (3): 223-226.
... the tectonic reconstruction of the Scandinavian Caledonides. The 500–450-Ma-old HP/UHP rocks are restricted to the allochthons, i.e., the Seve Nappe Complex (middle allochthon) and the Tromsø Nappe (uppermost allochthon; Fig. 1 ). Their formation preceded the continent collision between Laurentia and Baltica...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP390.29
EISBN: 9781862396661
... to be little disagreement that they are related to the initial break-up of Rodinia and formation of Baltica as a separate lithospheric plate in the early Ediacaran ( Svenningsen 2001 ). The Caledonian Orogen in Arctic Norway is characterized by a variety of nappes thrust from WNW towards ESE...
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Journal Article
Published: 10 January 2019
Journal of the Geological Society (2019) 176 (3): 492-504.
... Massif ( Fig. 2 ). The simple nappe structure and spatial distribution of the lower and middle units become complicated towards the west as a result of two subsequent stages of folding ( Jeřábek et al. 2016 ). The earlier folding led to the development of two mega-scale recumbent isoclinal folds, which...
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Series: Geological Society Special Publications
Published: 01 January 2012
DOI: 10.1144/SP367.13
EISBN: 9781862396159
.... The higher-temperature mylonites (HT myl) are gently folded in the Simplon Pass area. Tectonic units as follows. Middle Penninic (Grand San Bernhard System): Siviez-Mischabel (SM), Pontis Nappe (PN), Houillère Zone (HZ), Berisal Zone (BZ). Outer Penninic: Sion-Courmayeur Zone (SC). Lower Penninic (Ossola...
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Journal Article
Published: 18 August 2016
Journal of the Geological Society (2017) 174 (1): 93-109.
... were eroded into bedrock consisting of Precambrian basement of the Lofoten ridge and West Troms Basement Complex in the west, and Caledonian nappes east of the Vestfjorden–Vanna Fault Complex (e.g. Griffin et al. 1978 ; Zwaan 1995 ; Olesen et al. 1997 ; Corfu 2004 ; Bergh et al. 2010 ) ( Fig...
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