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Outer Isles Fault

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Journal Article
Published: 01 August 1993
Journal of the Geological Society (1993) 150 (4): 653-656.
... is interpreted in terms of fault displacement and estimates are made of the combined slip on all faults in the Minch region (including the Minch and Outer Isles faults). Although the data are insensitive to possible dip-slip motions, they indicate a sinistral strike-slip component of between 34–145 km (90...
..., and throws new light on the attitude and dip of major crustal faults in this region. The profile is the first of a series, planned by the British Institutions Reflection Profiling Syndicate (BIRPS), which will eventually constitute a complete deep seismic reflection traverse (offshore but with onshore...
Journal Article
Published: 01 September 2000
Journal of the Geological Society (2000) 157 (5): 1009-1017.
... fault zone is associated with an intensification of the gently SE-dipping foliation (S n ) in the banded gneiss ( Fig. 2). Topographic notches on the small isles of Flodday and Snagaras suggest that the Outer Hebrides Fault Zone is north–south-trending here, but on Hellisay and Gighay the fault zone...
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Journal Article
Published: 01 October 1995
Journal of the Geological Society (1995) 152 (5): 743-746.
...C. A. BUTLER; R. E. HOLDSWORTH; R. A. STRACHAN Abstract The Outer Hebrides Fault Zone is a major ESE-dipping reactivated fault within the Lewisian gneisses of the Laurentian craton in NW Scotland. Early thrust structures are overprinted by a network of retrograde ductile shear zones in which fluid...
Journal Article
Published: 01 April 1989
Journal of the Geological Society (1989) 146 (2): 253-259.
...M. LAILEY; A. M. STEIN; T. J. RESTON Abstract Mylonites in the Outer Hebrides fault zone on Scalpay, Hams, are cut by metabasite sheets which are probably of Scourie dyke age (2400–2200 Ma) and by pegmatites of late Laxfordian age (c. 1750 Ma). The mylonites contain relicts of a gneissose banding...
Journal Article
Published: 04 September 2019
Journal of the Geological Society (2019) jgs2019-009.
...J.W. O'Callaghan; G.R. Osinski Abstract The islands of the Outer Hebrides, Scotland host a c. 200 km long fault zone that was active between 1100 and 250 Ma, during which time a belt of fault rock several kilometres wide was created. The fault zone hosts crush breccias, phyllonite, mylonite...
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Journal Article
Published: 23 July 2008
Geological Magazine (2008) 145 (5): 623-636.
... University Press 2008 deformation fault fluid inclusions fluids Scotland The Outer Hebrides Fault Zone ( White & Glasser, 1987 ) is one of the largest tectonic features of the British Isles ( Sibson, 1977 ). This regional-scale, reactivated structure cuts Archaean–Palaeoproterozoic-aged...
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Journal Article
Published: 01 November 2002
Geological Magazine (2002) 139 (6): 609-619.
... investigation of the pseudotachylyte and its host rock from the Outer Isles thrust, Scotland . Geology 22 , 443 – 6 . Lailey , M. , Stein , A. M. & Reston , T. J. 1989 . The Outer Hebrides Fault: A major Proterozoic structure in NW Britain . Journal of the Geological Society...
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Journal Article
Published: 01 May 2001
Geological Magazine (2001) 138 (3): 325-344.
...G. R. OSINSKI; G. I. ALSOP; G. J. H. OLIVER Abstract The Outer Hebrides Fault Zone is a major ESE-dipping reactivated structure within Lewisian basement gneisses of the Laurentian craton, northwest Scotland. Detailed mapping in South Uist reveals important new evidence that contributes to a better...
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Journal Article
Journal: Clay Minerals
Published: 01 March 2006
Clay Minerals (2006) 41 (1): 5-46.
...J. M. HUGGETT; R. W. O’B. KNOX Abstract Tertiary sediments are of restricted occurrence in the onshore British Isles but occur extensively offshore, attaining thicknesses of ~4 km in the Faroe–Shetland Basin and ~3 km in the North Sea Basin. Clay mineral stratigraphic studies of the North Sea...
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Journal Article
Published: 29 April 2019
Scottish Journal of Geology (2019) 55 (1): 35-68.
... in the crust ( Fig. 5 ). Stein & Blundell (1990) proposed reactivation of Caledonian lineaments that were previously related to crustal shortening (for example the Outer Isles thrust was re-used by the Sea of the Hebrides Basin-bounding Minch Fault). Clearly this low-angle thrust plane was not utilized...
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Series: Geological Society, London, Memoirs
Published: 01 January 2014
DOI: 10.1144/M40.4
EISBN: 9781862397002
... on the behaviour of beaches that rest on shore platforms (e.g. Jackson et al. 2005 ; Jackson & Cooper 2009 ; Loureiro et al. 2012 ). In addition, the cliffed coasts of the British Isles do not always have shore platforms associated with them, perhaps because they are fault bounded or because of some...
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Series: Geological Society, London, Special Reports
Published: 01 January 2016
DOI: 10.1144/SR27.25
EISBN: 9781862397071
..., but now known to be connected by a subsea outcrop to the Skye Lava Group (Fig. 187 ). The SMLS overlies Mesozoic sediments of the Sea of the Hebrides Basin, and fills a synclinal basin, bounded to the west by the Canna Fault. It comprises mainly stacked flood basalt lavas, with some thin interbedded...
Journal Article
Published: 01 November 2006
Scottish Journal of Geology (2006) 42 (2): 89-99.
...Martyn Stoker; Tom Bradwell; Christian Wilson; Chris Harper; Dave Smith; Colin Brett Synopsis We present new multibeam bathymetry and boomer seismic profiles from 200 km 2 of sea floor around the Summer Isles in NW Scotland. The data reveal an undisturbed marine landscape comprising overdeepened...
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Journal Article
Published: 01 December 2004
Journal of the Geological Society (2004) 161 (6): 927-938.
... (1969) , following pioneering work by Creer et al . (1959) , has provided a magnetization direction that is accepted as defining a key virtual geomagnetic pole (VGP) for the late Carboniferous, contributing to the apparent polar wander path of the British Isles ( Torsvik et al . 1989 ; Piper et al...
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Series: GSA Memoirs
Published: 01 January 1982
DOI: 10.1130/MEM156-p83
... dominated by ridges of iron-formation. The resistant debris was removed first, and became deposited in alluvial fans along the deeper basins. Streams flowed across the marginal basins with possibly some local influence on stream direction and sedimentation by faults along the outer margins of active basins...
Journal Article
Published: 01 December 1987
Journal of the Geological Society (1987) 144 (6): 871-884.
..., in particular by the layering and crustal anisotropy developed along and above the Moine thrust. The West Orkney Basin with its 20 km deep decoupling level formed by extension of Caledonian thickened crust. It is notable that the major basin-bounding faults to the NW, the Outer Isles and Flannan faults, which...
Journal Article
Published: 01 December 2009
Journal of the Geological Society (2009) 166 (6): 1049-1059.
... (>700 Ma) examples that occur within the Neoarchaean to Palaeoproterozoic basement of the Lewisian Gneiss Complex ( Sibson 1975, 1977 ), which is transected by the crustal-scale Outer Hebrides Fault Zone (Fig. 2 ). The fault zone itself is a major crustal-scale SE- to ESE-dipping reactivated fault...
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Series: Geological Society, London, Special Publications
Published: 01 January 2003
DOI: 10.1144/GSL.SP.2003.220.01.03
EISBN: 9781862394681
... metasedimentary belt. Cliff-top outcrops SE of the Butt of Lewis lighthouse expose a suite of locally garnet-bearing dioritic rocks that exhibit strong cataclasis, presumably related to (?) Caledonian movements on the nearby Outer Isles fault zone. A series of leucocratic, garnet- free sheets (intrusions...
Journal Article
Published: 01 March 2012
Journal of the Geological Society (2012) 169 (2): 201-212.
..., Coastal Shear Zone; HGB, Harris Granulite Belt; LB, Langavat Belt; OHFZ, Outer Hebrides Fault Zone. 23 8 2011 4 1 2012 © The Geological Society of London 2012 Sutton & Watson (1951) subdivided the tectonothermal history of the Lewisian on the Scottish mainland using...
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