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Glen Spean Subgroup

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Journal Article

The Gaick Fold Complex: large-scale recumbent folds and their implications for Caledonian structural architecture in the Central Grampian Highlands Available to Purchase

A. G. Leslie, M. Krabbendam, R. A. Smith
Published: 01 November 2006
Scottish Journal of Geology (2006) 42 (2): 149–159.
DOI: https://doi.org/10.1144/sjg42020149
... Formation (Corrieyairack Subgroup) pass, via a well-defined sedimentary transition, into the stratigraphically younger Gaick Psammite Formation (Glen Spean Subgroup). This latter formation dominates the lithostratigraphy of the Gaick region, records shallow-water marine shelf conditions throughout...
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View PDF for article title, The Gaick Fold Complex: large-scale recumbent folds and their implications for Caledonian structural architecture in the Central Grampian Highlands
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Journal Article

The Grampian Group: a major Late Proterozoic clastic sequence in the Central Highlands of Scotland Available to Purchase

B. W. GLOVER, J. A. WINCHESTER
Published: 01 February 1989
Journal of the Geological Society (1989) 146 (1): 85–96.
DOI: https://doi.org/10.1144/gsjgs.146.1.0085
... portion of the Grampian Group and comprises a thick turbiditic clastic sequence laid down in deeper water during rapid basin subsidence. The Glen Spean Subgroup comprises the upper part of the Grampian Group and is thickest in the Atholl District. It is composed of shallow water tidal and deltaic deposits...
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Journal Article

Dalradian Grampian Group affinity for the Bowmore Sandstone Group, Islay, SW Scotland Available to Purchase

Claire A. McAteer, J. Stephen Daly, Michael J. Flowerdew, Martin J. Whitehouse
Published: 01 November 2010
Scottish Journal of Geology (2010) 46 (2): 97–111.
DOI: https://doi.org/10.1144/0036-9276/01-408
... the paucity of Archaean detritus in the Bowmore Sandstone Group. However, the data are comparable to parts of the Dalradian Grampian Group, in particular, the Glen Spean Subgroup (Upper Grampian Group, Strathtummel succession). It is proposed that the Bowmore Sandstone Group was deposited in an eastern...
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View PDF for article title, Dalradian Grampian Group affinity for the Bowmore Sandstone Group, Islay, SW Scotland
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Multi-element plots showing trace element distributions for (a) C61A, Doonamo Formation (Erris Group), C62, Carricklahan Schist (Inishkea Division), C63, Kinrovar Schist (Inishkea Division), C66B, Inishkea Division (Tiraun Point) and C67, Scotch Port Schist (Inishkea Division) and (b) average values for the samples plotted in (a) and semipelites from the Corrieyairack and Glen Spean subgroups of the Scottish Grampian Group (data from Winchester & Glover 1988). Data normalized to Average Upper Crust (AUC; Taylor & McLennan 1981). Black bar indicates lower limit of detection.

Multi-element plots showing trace element distributions for ( a ) C61A, Doo... Available to Purchase

Published: 01 September 2010
) average values for the samples plotted in ( a ) and semipelites from the Corrieyairack and Glen Spean subgroups of the Scottish Grampian Group (data from Winchester & Glover 1988 ). Data normalized to Average Upper Crust (AUC; Taylor & McLennan 1981 ). Black bar indicates lower limit
Image
Nd isotopic evolution diagram showing εNd values for the Bowmore Sandstone Group (samples C39 and C84) at 0.9 Ga (inferred time of deposition) and Nd evolution lines for possible source areas: Rhinns Complex (amalgamated with Mullet gneiss, see below) from Marcantonio et al. (1988), Daly et al. (1991) and Dickin & Bowes (1991) and the Annagh Gneiss Complex (Mullet, Cross Point and Doolough gneisses, respectively) from Menuge & Daly (1990). The dashed line indicates the range of εNd values (at t = 0.9 Ga) for possible correlative metasedimentary sequences shown individually in the inset as a series of distribution bars. SG, Sleat Group (Daly unpublished data); TG, Torridon Group (O'Nions et al. 1983; Daly unpublished data); CG, Colonsay Group (McAteer et al. 2010a); IG, Iona Group (McAteer 2009); NM, North Mayo Grampian Group (McAteer et al. 2010b); CS, Corrieyairack Subgroup (Grampian Group Scotland; Banks et al. 2007); GS, Glen Spean Subgroup (Grampian Group Scotland; Banks et al. 2007); IS, Islay Subgroup (Argyll Group, Ireland; Daly & Menuge unpublished data); CrS, Crinan Subgroup (Argyll Group, Ireland; Daly & Menuge unpublished data). Depleted mantle curve from DePaolo (1981).

Nd isotopic evolution diagram showing ε Nd values for the Bowmore Sandston... Available to Purchase

Published: 01 November 2010
, Corrieyairack Subgroup (Grampian Group Scotland; Banks et al . 2007 ); GS, Glen Spean Subgroup (Grampian Group Scotland; Banks et al . 2007 ); IS, Islay Subgroup (Argyll Group, Ireland; Daly & Menuge unpublished data); CrS, Crinan Subgroup (Argyll Group, Ireland; Daly & Menuge unpublished data
Journal Article

Exceptional preservation of sedimentary structures in metamorphic rocks: an example from the upper Grampian Group, Creag Stalcair, Perthshire Available to Purchase

Christopher J. Banks
Published: 01 April 2007
Scottish Journal of Geology (2007) 43 (1): 9–14.
DOI: https://doi.org/10.1144/sjg43010009
... is in turn divided into a lower Corrieyairack and an upper Glen Spean subgroup ( Glover & Winchester 1989 ). The Corrieyairack Subgroup is interpreted as a synrift submarine fan/ramp system associated with the opening of the Dalradian basins, and the Glen Spean Subgroup is considered to be a shelf...
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View PDF for article title, Exceptional preservation of sedimentary structures in metamorphic rocks: an example from the upper Grampian Group, Creag Stalcair, Perthshire
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Journal Article

Rift basin architecture and stratigraphical implications for basement-cover relationships in the Neoproterozoic Grampian Group of the Scottish Caledonides Available to Purchase

M. SMITH, S. ROBERTSON, K. E. ROLLIN
Published: 01 December 1999
Journal of the Geological Society (1999) 156 (6): 1163–1173.
DOI: https://doi.org/10.1144/gsjgs.156.6.1163
...) and magnetic (SI#10"3) properties used in geophysical modelling (Figs 4a & b) Group Subgroup Lithofacies Depositional environment Appin (2.76/0) Blair Atholl Ballachulish Lochaber Semipelites, quartzites and metalimestones Shallow marine/shelf succession Glen Spean (2.70/0) Siliceous psammites and quartzites...
View PDF for article title, Rift basin architecture and stratigraphical implications for basement-cover relationships in the Neoproterozoic Grampian Group of the Scottish Caledonides
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Journal Article

Discussion on the Grampian Group: a major Late Proterozoic clastic sequence in the Central Highlands of Scotland Available to Purchase

Published: 01 August 1990
Journal of the Geological Society (1990) 147 (4): 732–734.
DOI: https://doi.org/10.1144/gsjgs.147.4.0732
... wide areas, major strike slip faults and plutons as Glover & Winchester have done. We find it particularly difficult to see why the Monadhliath Semi-pelite and the overlying Carn Leac Psammite have been included within the Glen Spean Subgroup ( age 90). The base of the Monadhliath Semi-pelite...
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Journal Article

The significance of the Geal Charn-Ossian Steep Belt in basin development in the Central Scottish Highlands Available to Purchase

S. ROBERTSON, M. SMITH
Published: 01 December 1999
Journal of the Geological Society (1999) 156 (6): 1175–1182.
DOI: https://doi.org/10.1144/gsjgs.156.6.1175
..., Corrieyairack and Glen Spean subgroups (Fig. 4). The strata are the right way up and young consistently southeastwards with the youngest parts of the succession cropping out within the Steep Belt (Fig. 2). The Glenshirra Subgroup, the oldest recognized part of the Grampian Group, crops out in Glen Shirra [NN 50...
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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 Ben Alder and SE of the Great Glen between Strathnairn and Glen Spean several successions or subgroups and formations are recognized. These are described below. In many places the dominantly poorly sorted Grampian Group psammites became notably siliceous upwards, commonly becoming quartzites which...
Abstract
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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

Evidence, or not, for the late Tonian break-up of Rodinia? The Dalradian Supergroup, Scotland Open Access

A. R. Prave, A. E. Fallick, K. Kirsimäe
Published: 22 February 2023
Journal of the Geological Society (2023) 180 (2): jgs2022-134.
DOI: https://doi.org/10.1144/jgs2022-134
.... 2009 a ; Ali et al. 2018 ; Fairchild et al. 2018 ). These constraints place the deposition of the Grampian and Appin groups as occurring at some time between c. 840 and 716 Ma. The Grampian Group is divided into the older Corrieyairick and younger Glen Spean subgroups. The former...
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Journal Article

A Neoproterozoic multi-phase rift sequence: the Grampian and Appin groups of the southwestern Monadhliath Mountains of Scotland Available to Purchase

B. W. GLOVER, R. M. KEY, F. MAY, G. C. CLARK, E. R. PHILLIPS, B. C. CHACKSFIELD
Published: 01 April 1995
Journal of the Geological Society (1995) 152 (2): 391–406.
DOI: https://doi.org/10.1144/gsjgs.152.2.0391
... mid-fan turbidite complexes m 2 fringing fan/ basin plain 4 basin plain Key to Fig. 1 and to Fig. 3 Glen Spean subgroups (shelf sequence) of Glover & Winchester (1989). For simplicity, we will refer to their genetic terms throughout this paper. The Grampian Group turbidite complex comprises four...
View PDF for article title, A Neoproterozoic multi-phase rift sequence: the Grampian and Appin groups of the southwestern Monadhliath Mountains of Scotland
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Journal Article

A geochemical comparison of the Dalradian Leven Schists and the Grampian Division Monadhliath Schists of Scotland Available to Purchase

R. St. J. Lambert, J. G. Holland, J. A. Winchester
Published: 01 February 1982
Journal of the Geological Society (1982) 139 (1): 71–84.
DOI: https://doi.org/10.1144/gsjgs.139.1.0071
... members of the Lochaber Subgroup. This relationship is traceable al- most as far N as Glen Spean, where, on Bailey s interpretation, slides (thrusts) cut out both the under- lying and overlying succession, leaving the Leven Schists N of the River Spean in contact with the Grampian Division in the E...
View PDF for article title, A geochemical comparison of the Dalradian Leven Schists and the Grampian Division Monadhliath Schists of Scotland
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Journal Article

Tectonothermal evolution of the Neoproterozoic Grampian and Appin groups, southwestern Monadhliath Mountains, Scotland Available to Purchase

E. R. PHILLIPS, R. M. KEY, G. C. CLARK, F. MAY, B. W. GLOVER, B. C. CHACKSFIELD
Published: 01 December 1994
Journal of the Geological Society (1994) 151 (6): 971–986.
DOI: https://doi.org/10.1144/gsjgs.151.6.0971
... (Glover & Winchester 1989); and (c) the Glen Spean Subgroup consisting of a sequence of shallow marine and deltaic deposits (Glover & Winchester 1989). In the study area the Grampian Group metasedi- ments largely belong to the Corrieyairack Subgroup, apart from the Gairbeinn pebbly psammite which as been...
View PDF for article title, Tectonothermal evolution of the Neoproterozoic Grampian and Appin groups, southwestern Monadhliath Mountains, Scotland
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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
... Glen Spean Subgroup Auch Gleann Psammite Formation Auch Gleann Psammite Formation Auch Gleann Psammite Formation The stratigraphic nomenclature of Table 1 (group, subgroup, etc.) encompasses all of the individual units depicted in Figures 5–7 . Table 2. Descriptions of previously...
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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

Tectonostratigraphy of the Moine Supergroup: a synthesis Available to Purchase

N. J. SOPER, A. L. HARRIS, R. A. STRACHAN
Published: 01 February 1998
Journal of the Geological Society (1998) 155 (1): 13–24.
DOI: https://doi.org/10.1144/gsjgs.155.1.0013
... been reviewed by Glover & Winchester (1989) and Harris et al. (1994). As defined by the former, the Grampian Group comprises three subgroups, Ord Ban, Corrieyairack and Glen Spean. This sequence, together with the overlying Appin Group, has been interpreted by Glover et al. (1995) in terms of multiple...
View PDF for article title, Tectonostratigraphy of the Moine Supergroup: a synthesis
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Journal Article

Hydrogeochemistry as an aid to geological interpretation: the Glen Roy area, Scotland Available to Purchase

W. M. EDMUNDS, R. M. KEY
Published: 01 December 1996
Journal of the Geological Society (1996) 153 (6): 839–852.
DOI: https://doi.org/10.1144/gsjgs.153.6.0839
... and on the highest ground. It is less extensive on the southern slopes of Glen Spean and the lower slopes of Glen Roy. Bedrock geology The study area is mostly underlain by Neoproterozoic metasedimentary rocks of the Grampian and Appin Groups (British Geological Survey 1995b), both currently assigned...
View PDF for article title, Hydrogeochemistry as an aid to geological interpretation: the <span class="search-highlight">Glen</span> Roy area, Scotland
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Journal Article

Discussion on a late Vendian age for the Kinlochlaggan Boulder Bed (Dalradian) Available to Purchase

Published: 01 September 1997
Journal of the Geological Society (1997) 154 (5): 917–919.
DOI: https://doi.org/10.1144/gsjgs.154.5.0917
... of the Grampian Group in the Kinlochlaggan Synform diVers signifi- cantly from the Lochaber Appin stratigraphical successions seen in the area between Glen Orchy and Spean Bridge, and at Schiehallion. Whereas lateral variations in the Lochaber stratigraphy may be explained by the deposition of these rocks...
View PDF for article title, Discussion on a late Vendian age for the Kinlochlaggan Boulder Bed (Dalradian)
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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
... pelites in the Lochaber and Ballachulish Subgroups of the Scottish Appin Group typically have high Rb/Sr and Y/Sr. Glen Spean Subgroup semipelites tend to occupy an i termediate compositional field. In the Bangor Succession semi-pelites from the Grampian Group inErris show a similar compositional change...
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

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
... Slide runs parallel to he stratigraphy as it would in a normal or sole fault sector. However, on the east side of the Stob Bhan Synform, between Glen Coe and Glen Spean, the three Lochaber Subgroup quartzites (Eilde, Binnein and Glencoe) appear to be progressively truncated northwards against...
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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