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Tayvallich Subgroup

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Journal Article

Wollastonite-bearing assemblages from the Dalradian at Fraserburgh, northeast Scotland and their bearing on the emplacement of garnetiferous granitoid sheets Available to Purchase

T. E. Johnson, N. F. C. Hudson, G. T. R. Droop
Published: 01 December 2000
Mineralogical Magazine (2000) 64 (6): 1165–1176.
...T. E. Johnson; N. F. C. Hudson; G. T. R. Droop Abstract Metasediments of the Tayvallich Subgroup of the Dalradian at Kinnairds Head, Fraserburgh are metamorphosed to sillimanite + K-feldspar grade and form part of the classic high- T low- P Buchan metamorphic terrain. Pelitic samples constrain peak...
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View PDF for article title, Wollastonite-bearing assemblages from the Dalradian at Fraserburgh, northeast Scotland and their bearing on the emplacement of garnetiferous granitoid sheets
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Journal Article

Chemostratigraphic correlation, structure and sedimentary environments in the Dalradian' of the NW Co. Mayo inlier, NW Ireland Available to Purchase

J. A. WINCHESTER, M. D. MAX
Published: 01 September 1996
Journal of the Geological Society (1996) 153 (5): 779–801.
DOI: https://doi.org/10.1144/gsjgs.153.5.0779
... blocks bounded by Caledonian thrusts, extensional low-angle faults, and steeply dipping faults. Grampian–Appin Group relationships are better seen here than anywhere else in Scotland or Ireland. but no Tayvallich Subgroup or Southern Highland Group Dalradian rocks are present. Comparison...
View PDF for article title, Chemostratigraphic correlation, structure and sedimentary environments in the Dalradian' of the NW Co. Mayo inlier, NW Ireland
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Journal Article

Geochemical evolution of Dalradian metavolcanic rocks: implications for the break-up of the Rodinia supercontinent Available to Purchase

D.J. Fettes, R. Macdonald, J.G. Fitton, D. Stephenson, M.R. Cooper
Published: 01 September 2011
Journal of the Geological Society (2011) 168 (5): 1133–1146.
DOI: https://doi.org/10.1144/0016-76492010-161
..., with rapidly deepening SW–NE basins. The group is divided into four subgroups, namely Islay, Easdale, Crinan and Tayvallich (Fig. 3 ; Stephenson & Gould 1995 ). Volcanic rocks occur in all the subgroups but are particularly abundant in the Easdale and Tayvallich. Fig. 1. ( a ) Global...
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View PDF for article title, Geochemical evolution of Dalradian metavolcanic rocks: implications for the break-up of the Rodinia supercontinent
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Journal Article

Temporal and spatial variations in calcium carbonate deposition in a mixed siliciclastic–carbonate deep marine system: the Ediacaran Deeside Limestone Formation, Aboyne, Scotland Available to Purchase

Stephen J. Drake, Enrique Gomez-Rivas, Ryan B. Ickert, David I.M. Macdonald
Published: 09 June 2022
Scottish Journal of Geology (2022) 58 (1): sjg2021-017.
DOI: https://doi.org/10.1144/sjg2021-017
... ( Stephenson et al. 2013 ). The outcrop described here stretches c. 20 km from west to east and is centred on the village of Aboyne, Aberdeenshire c. 50 km west of Aberdeen ( Fig. 1a ). The DLF is the basal formation of the Tayvallich Subgroup, near the top of the Argyll Group, in the upper part...
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View PDF for article title, Temporal and spatial variations in calcium carbonate deposition in a mixed siliciclastic–carbonate deep marine system: the Ediacaran Deeside Limestone Formation, Aboyne, Scotland
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Book Chapter

The Dalradian Supergroup in Scotland, Shetland and Ireland Available to Purchase

Author(s)
A. L. Harris, P. J. Haselock, M. J. Kennedy, J. R. Mendum, C. B. Long, J. A. Winchester, P. W. G. Tanner
Book: A revised correlation of Pre-Cambrian rocks in the British Isles
Series: Geological Society, London, Special Reports
Publisher: Geological Society of London
Published: 01 January 1994
DOI: 10.1144/SR22.4
EISBN: 9781786202857
... and comprises four subgroups, the Islay (oldest), Easdale, Crinan and Tayvallich (youngest). Its base is marked by a distinctive and persistent tillite with which are associated dolomitic beds and stromatolites. Generally speaking the group consists of units which are much thicker than those of the upper...
Abstract
View PDF for content titled, The Dalradian Supergroup in Scotland, Shetland and Ireland
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Abstract The Dalradian Supergroup, comprising the Grampian (oldest), Appin, Argyll and Southern Highland (youngest) groups (Fig. 13) consists of lithologically diverse metasediments and typically mafic metavolcanic rocks. The supergroup is probably entirely late Precambrian in age and underlies an area of about 48000 km 2 in north and west Ireland, Scotland and Shetland. Neither the base nor the top of the Dalradian is seen but, taking the maximum thickness preserved for every group and making no allowance for tectonic thickening, it is calculated to have a total cumulative thickness of c. 25.5 km.

Journal Article

Timing of Barrovian metamorphism and ‘Older Granite’ emplacement in relation to Dalradian deformation Available to Purchase

S. ROBERTSON
Published: 01 February 1994
Journal of the Geological Society (1994) 151 (1): 5–8.
DOI: https://doi.org/10.1144/gsjgs.151.1.0005
... to the Crinan and Tayvallich subgroups (Argyll Group) and Southern High- land Group of the Dalradian (Fig. 1). The Crinan Subgroup consists mostly of semipelitic gneisses which range from stromatic migmatites to massive rocks of granitoid aspect, in part forming the Duchray Hill Gneiss. It is succeeded...
View PDF for article title, Timing of Barrovian metamorphism and ‘Older Granite’ emplacement in relation to Dalradian deformation
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Journal Article

A composite C-isotope profile for the Neoproterozoic Dalradian Supergroup of Scotland and Ireland Available to Purchase

A.R. Prave, A.E. Fallick, C.W. Thomas, C.M. Graham
Published: 01 September 2009
Journal of the Geological Society (2009) 166 (5): 845–857.
DOI: https://doi.org/10.1144/0016-76492008-131
... −14.57 L GS-1920-LnC 19.2 6.30 −14.60 L GS-2060-LnC 20.6 6.49 −14.77 L Argyll Group: Tayvallich Subgroup Tayvallich Lst, Tayvallich [NR 70749 84489] Tay-1 1 1.11 −13.03 L Tay-3 3 0.52 −13.21 L Tay-4 9.6 1.51 −13.09 L Tay-5 13.3 1.14 −13.28 L Tay-6...
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View PDF for article title, A composite C-isotope profile for the Neoproterozoic Dalradian Supergroup of Scotland and Ireland
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Journal Article

The Green Beds of the SW Highlands: deposition and origin of a basic igneous-rich sedimentary sequence in the Dalradian Supergroup of Scotland Available to Purchase

E. A. Pickett, E. K. Hyslop, M. G. Petterson
Published: 01 April 2006
Scottish Journal of Geology (2006) 42 (1): 43–57.
DOI: https://doi.org/10.1144/sjg42010043
... is implied between formations in the two areas). Group Subgroup Formation Formation (Tayvallich area) (Aberfoyle area) Southern Highland No subgroups Not exposed in area Ben Ledi Grit Creag Innich Sandstone Loch Avich Lavas Lateral facies changes between these units...
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View PDF for article title, The Green Beds of the SW Highlands: deposition and origin of a basic igneous-rich sedimentary sequence in the Dalradian Supergroup of Scotland
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Journal Article

The Dalradian rocks of Shetland and their implications for the plate tectonics of the northern Iapetus Available to Purchase

Derek Flinn
Published: 01 November 2007
Scottish Journal of Geology (2007) 43 (2): 125–142.
DOI: https://doi.org/10.1144/sjg43020125
... to the highly variable and indicates unequivocally a deep water origin. This contiguity is remarkably similar to that of the Tayvallich Subgroup or to the Farragon Beds at the base of the Crinan Grits in the Scottish Dalradian (see below). The Asta Spilites are the lowest unit in the Clift Hills Group...
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View PDF for article title, The Dalradian rocks of Shetland and their implications for the plate tectonics of the northern Iapetus
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Journal Article

Geometrical restoration of a late Neoproterozoic depositional framework and an intrabasinal unconformity in the Laurentian margin Dalradian Supergroup, Grampian Highlands, Scotland Open Access

A. G. Leslie, M. Krabbendam, C. W. Thomas, C. J. Banks, S. M. Clarke
Published: 25 April 2024
Journal of the Geological Society (2024) 181 (4): jgs2023-208.
DOI: https://doi.org/10.1144/jgs2023-208
... with the somewhat cryptic succession of the Easdale–Tayvallich Subgroup preserved in the Cabrach area of west Aberdeenshire ( Fettes et al. 1991 , 2011 ; MacDonald et al. 2005 ). Such basin-scale extension during deposition of the mid-Dalradian does appear localized, however, and should not perhaps be over...
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View PDF for article title, Geometrical restoration of a late Neoproterozoic depositional framework and an intrabasinal unconformity in the Laurentian margin Dalradian Supergroup, Grampian Highlands, Scotland
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Journal Article

Basic and ultrabasic volcanic rocks from the Argyll Group (Dalradian) of NE Scotland Available to Purchase

R. Macdonald, D. J. Fettes, D. Stephenson, C. M. Graham
Published: 01 November 2005
Scottish Journal of Geology (2005) 41 (2): 159–174.
DOI: https://doi.org/10.1144/sjg41020159
... of basic magmatism occurred in the Tayvallich Subgroup and was centred in the Tayvallich-Knapdale area of the SW Highlands, producing a sequence of pillow lavas, tuffs and hyalo-clastites up to 2000 m thick ( Graham 1976 ; Graham & Bradbury 1981 ). The extrusive activity was broadly associated...
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Book Chapter

Middle Neoproterozoic–Early Ordovician: foreland basins, climatic extremes and rift-to-drift margins Available to Purchase

Author(s)
Tony Prave, Anthony E. Fallick, Rob Strachan, Maarten Krabbendam, A. Graham Leslie
Book: The Geology of Scotland
Series: Geological Society, London, Geology of Series
Publisher: Geological Society of London
Published: 20 August 2024
DOI: 10.1144/GOS5-2022-12
EISBN: 9781786206893
... moved towards the NW (relative to present-day orientations). ( b ) Polygonal, permafrost sand wedges indicative of fluctuating freeze–thaw temperature conditions. Source: photographs are courtesy of A.M. Spencer. Fig. 5.12. Sedimentary features of the Easdale, Crinan and Tayvallich subgroups...
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Journal Article

87 Sr/ 86 Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales Available to Purchase

ChristopherW. Thomas, ColinM. Graham, RobertM. Ellam, AnthonyE. Fallick
Published: 01 March 2004
Journal of the Geological Society (2004) 161 (2): 229–242.
DOI: https://doi.org/10.1144/0016-764903-001
... Northern Ireland Tayvallich Torr Head Limestone Torr Head, Co. Antrim H 232 406 2 HY1348, 1349 11 Greenschist Dungiven Limestone Butterlope Glen, Co. Tyrone C 493 047 1 HY1350 12 Amphibolite Banagher Glen, Co. Tyrone C 668 047 1 HY1351 Easdale Subgroup, Argyll...
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View PDF for article title, 87 Sr/ 86 Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales
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Journal Article

Stratigraphy, structure and metamorphism of Dalradian rocks of the Maumturk Mountains, Connemara, Ireland Available to Purchase

MICHAEL EDWARD BADLEY
Published: 01 September 1976
Journal of the Geological Society (1976) 132 (5): 509–520.
DOI: https://doi.org/10.1144/gsjgs.132.5.0509
... of alternating psammite and semipelite. The Maumturk and Gleniska Members group readily together to form the Kyle- more Formation which with its return to locally coarse elastics and turbidite- influenced eposition, is not dissimilar to representatives of the Crinan Subgroup outside Connemara. Tayvallich...
View PDF for article title, Stratigraphy, structure and metamorphism of Dalradian rocks of the Maumturk Mountains, Connemara, Ireland
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Journal Article

Dalradian slides and basin development: a radical interpretation of stratigraphy and structure in the SW and Central Highlands of Scotland Available to Purchase

R. ANDERTON
Published: 01 August 1988
Journal of the Geological Society (1988) 145 (4): 669–678.
DOI: https://doi.org/10.1144/gsjgs.145.4.0669
... Cambrian part of the succession, the Southern Highland Group, may then have been deposited on the newly formed, thermally-subsiding Laurentian continental margin. Anderton (1979) inferred that major syndepositional 669 670 R. ANDERTON Group Subgroup Formation TAYVALLICH 1 5 4 ISLAY BLAIR ATHOLL...
View PDF for article title, Dalradian slides and basin development: a radical interpretation of stratigraphy and structure in the SW and Central Highlands of Scotland
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Journal Article

Evidence for a major Neoproterozoic orogenic unconformity within the Dalradian Supergroup of NW Ireland Available to Purchase

D.H.W. Hutton, G.I. Alsop
Published: 01 July 2004
Journal of the Geological Society (2004) 161 (4): 629–640.
DOI: https://doi.org/10.1144/0016-764903-094
... cleavages in the clasts that it contains, are stratigraphically older than the well-defined c . 600 Ma age of the Tayvallich Subgroup ( Dempster et al . 2002 ). Our interpretation, that the clasts are largely derived from the underlying sequence, therefore supports Precambrian orogenesis within the lower...
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Journal Article

Neoproterozoic chemostratigraphy and correlation of the Port Askaig glaciation, Dalradian Supergroup of Scotland Available to Purchase

M. D. BRASIER, G. SHIELDS
Published: 01 September 2000
Journal of the Geological Society (2000) 157 (5): 909–914.
DOI: https://doi.org/10.1144/jgs.157.5.909
...). The Dalradian Supergroup of Scotland ( Fig. 1) is one of the thickest (<25 km) and potentially one of the most complete Neoproterozoic–Cambrian successions to be found anywhere. It contains an important U–Pb zircon age of 595±4 Ma from a submarine keratophyre in the Tayvallich subgroup ( Halliday et al...
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View PDF for article title, Neoproterozoic chemostratigraphy and correlation of the Port Askaig glaciation, Dalradian Supergroup of Scotland
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Journal Article

Timing of deposition, orogenesis and glaciation within the Dalradian rocks of Scotland: constraints from U–Pb zircon ages Available to Purchase

T. J. DEMPSTER, G. ROGERS, P. W. G. TANNER, B. J. BLUCK, R. J. MUIR, S. D. REDWOOD, T. R. IRELAND, B. A. PATERSON
Published: 01 January 2002
Journal of the Geological Society (2002) 159 (1): 83–94.
DOI: https://doi.org/10.1144/0016-764901061
... thickening and Barrovian metamorphism (e.g. Fettes et al. 1986 ; Harte 1988 ). The ‘Tayvallich Volcanics’ belong to the Tayvallich Subgroup and form the uppermost part of the Argyll Group of the Dalradian Supergroup. The voluminous basic magmatism, which includes a variety of pyroclastic lithologies...
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View PDF for article title, Timing of deposition, orogenesis and glaciation within the Dalradian rocks of Scotland: constraints from U–Pb zircon ages
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Journal Article

Structural setting and petrogenesis of the Ben Vuirich Granite Pluton of the Grampian Highlands: a pre-orogenic, rift-related intrusion Available to Purchase

P. W. G. Tanner, A. G. Leslie, M. R. Gillespie
Published: 01 November 2006
Scottish Journal of Geology (2006) 42 (2): 113–136.
DOI: https://doi.org/10.1144/sjg42020113
... that the granite, emplaced at a depth of 7–14 km, formed in the same extensional tectonic setting as the Tayvallich lavas at 600 Ma. Geochemical and isotope parameters point to a largely crustal source. The intrusion belongs to a swarm of rift-related, A-type granitoids that originally stretched from...
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Journal Article

Glacial trinity: Neoproterozoic Earth history within the British-Irish Caledonides Available to Purchase

G.A. McCay, A.R. Prave, G.I. Alsop, A.E. Fallick
Journal: Geology
Published: 01 November 2006
Geology (2006) 34 (11): 909–912.
DOI: https://doi.org/10.1130/G22694A.1
... Askaig; R—Reelan; S—Stralinchy; T—Tayvallich. Figure 2. Simplified composite stratigraphy for Dalradian Supergroup. See text for discussion of age control and labeled units. Figure 3. A–C: Stralinchy diamictite at type locality. A: Quartzite-schist-carbonate-clast diamictite with mixed...
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