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Monadhliath Semipelite

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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
... Formation. (350 m), formerly described as the Monadhliath Semipelite (Okonkwo 1985), exhibits marked lateral variation. It was correlated initially with the Monadhliath Semipelite north-west of the Corrieyairack Granodiorite (Fig. 3) because it possesses a higher proportion of semipelite than the Glen Doe...
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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
... groups are consistently different: the Leven Schists are muscovite-rich, plagioclase-poor semipelites to pelites, whereas the Monadhliath Schists are a typical ‘Moinian’ semipelite, consisting almost entirely of biotite, sodic andesine and quartz. Equally, consistent geochemical differences between...
View PDF for article title, A geochemical comparison of the Dalradian Leven Schists and the Grampian Division <span class="search-highlight">Monadhliath</span> Schists of Scotland
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Journal Article

Discussion of Moine–Dalradian relationships in the River Leven Available to Purchase

Published: 01 June 1975
Journal of the Geological Society (1975) 131 (3): 327–328.
DOI: https://doi.org/10.1144/gsjgs.131.3.0327
... the R. Spean. During field work for a project on the geochemistry of the Leven and Monadhliath schists (Lambert & Holland in preparation) observations were made on the sequence in the R. Leven E of Kinlochleven which imply conclusions different from those of Treagus (1974 fig. 4, P. 539–41...
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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
... with the Clachaig Formation with which the Monadhliath Semipelite is correlated, are shown to be of shallow water (marine?) origin by the presence of wave ripples, flaser bedding and traction-dominated deposition. Likewise, sedimentological analysis of the underlying formations assigned to the Corrieyairack...
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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
... major TECTONOTHERMAL EVOLUTION, MONADHLIATH 983 Table 3. Pressure-temperature estimates obtained from the Appin Group pelitic schists and calc-silicate rocks, and Grampian Group semipelitic schists and calc-silicate rocks Sample N Tm,, Tmax Appin Group: pelitic schisrs S82456 18 390 580 S76868 15 450...
View PDF for article title, Tectonothermal evolution of the Neoproterozoic Grampian and Appin groups, southwestern <span class="search-highlight">Monadhliath</span> Mountains, Scotland
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Journal Article

New light on the Moine rocks of the Central Highlands of Scotland Available to Purchase

M. A. J. Piasecki
Published: 01 February 1980
Journal of the Geological Society (1980) 137 (1): 41–59.
DOI: https://doi.org/10.1144/gsjgs.137.1.0041
... in which belts of pelitic and semipelitic schists and gneisses were present, some of the pelites containing quartzites, marbles and amphibolites. Fol- lowing the work of Anderson (1948, 1956) the Moi- nian psammites became known as Eilde (elsewhere the Struan) Flags and the pelites as the Monadhliath...
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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
...B. W. GLOVER; R. M. KEY; F. MAY; G. C. CLARK; E. R. PHILLIPS; B. C. CHACKSFIELD Abstract The Grampian and Appin groups of the southwestern Monadhliath Mountains form the earliest known syn-rift sequences of the Scottish central Highlands. They were likely to have formed in an intracontinental...
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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
...). Westwards (Fig. 1, area 2), they pass laterally into thinly bedded calcsilicate-bearing semipelite and micaceous psammite, locally with graphitic semipelite and quartzite (the Monadhliath Schist and TarV Banded Forma- tion of Winchester & Glover 1988; Key et al. 1997). These mixed units, with a cumulative...
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

The timing and P–T conditions of regional metamorphisni in the Central Highlands, Scotland Available to Purchase

E. R. PHILLIPS, A. J. HIGHTON, E. K. HYSLOP, M. SMITH
Published: 01 December 1999
Journal of the Geological Society (1999) 156 (6): 1183–1193.
DOI: https://doi.org/10.1144/gsjgs.156.6.1183
.... The Moinian and Dalradian rocks between Glen Roy and the Monadhliath Mountains, Invemess-shire Transactions of the Royal Society of Edinburgh: Earth Sciences 1956 63 15 36 Ashworth J.R. Harris A. Holland C.H. Leake B.C. Textural and mineralogical evolution of migmatites...
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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
... basins Belt basement unconformities References Anderson J.G.C. The Kinlochlaggan Syncline, southern Inverness-shire Transactions of the Geological Society of Glasgow 1947 21 97 115 Anderson J.G.C. The Moinian and Dalradian rocks between Glen Roy and the Monadhliath...
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Journal Article

Mineralogy, geochemistry and the development of ductile shear zones in the Grampian Slide zone of the Scottish Central Highlands Available to Purchase

E. K. HYSLOP, M. A. J. PIASECKI
Published: 01 June 1999
Journal of the Geological Society (1999) 156 (3): 577–589.
DOI: https://doi.org/10.1144/gsjgs.156.3.0577
... Anderson J.G.C. The Moinian and Dalradian rocks between Glen Roy and the Monadhliath Mountains, Inverness-shire Transactions of the Royal Society of Edinburgh 1956 63 15 36 Anderton R. Sedimentation and tectonics in the Scottish Dalradian Scottish Journal of Geology 1985 21 407...
View PDF for article title, Mineralogy, geochemistry and the development of ductile shear zones in the Grampian Slide zone of the Scottish Central Highlands
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Journal Article

Sedimentology and stratigraphic affinities of Neoproterozoic coarse clastic successions, Glenshirra Group, Inverness-shire, Scotland Available to Purchase

C. J. Banks, J. A. Winchester
Published: 01 November 2004
Scottish Journal of Geology (2004) 40 (2): 159–174.
DOI: https://doi.org/10.1144/sjg40020159
... Buck Pebbly Psammite and Garva Bridge Pebbly Psammite Formations. The Corrieyairack Subgroup is dominated by plagioclase- bearing, micaceous psammite and has thick horizons of pelite (e.g. Coire nan Laogh Semipelite Formation, Monadhliath Semipelite Formation). In contrast, the Glen Buck Pebbly...
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View PDF for article title, Sedimentology and stratigraphic affinities of Neoproterozoic coarse clastic successions, Glenshirra Group, Inverness-shire, 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
... 1989 146 85 96 Glover B.W. Key R.M. May F. Clark G.C. Phillips E.R. Chackfield B.C. A Neoproterozoic multiphase rift sequence: the Grampian and Appin groups of the southwestern Monadhliath Mountains of Scotland Journal of the Geological Society, London 1995 152...
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
.... M. Clark G. C. Phillips E. R. Chacksfield B. C. A Neoproterozoic multi-phase rift sequence: the Grampian and Appin Groups of the southwestern Monadhliath Mountains of Scotland Journal of the Geological Society, London 1995 152 391 406 Hambrey, M. J., Fairchild, I. J...
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Journal Article

Discussion on P-T conditions in the Moines of the Central Highlands, Scotland Available to Purchase

Published: 01 April 1981
Journal of the Geological Society (1981) 138 (2): 205–209.
DOI: https://doi.org/10.1144/gsjgs.138.2.0205
..., it incorporated features from both events. Reassessment of this pattern is now due, particularly with regard to the nature of the Monadhliaths metamorphic ‘high’. However, the relocation of metamorphic zones established by the Grampian event suggested by Wells is oversimplified and unconvincing, and his...
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Journal Article

U-Pb zircon geochronology of migmatization in the northern Central Highlands: evidence for pre-Caledonian (Neoproterozoic) tectonometamorphism in the Grampian block, Scotland Available to Purchase

A. J. HIGHTON, E. K. HYSLOP, S. R. NOBLE
Published: 01 December 1999
Journal of the Geological Society (1999) 156 (6): 1195–1204.
DOI: https://doi.org/10.1144/gsjgs.156.6.1195
... Geological Society London Special Publications Glover B.W. Key R.M. May F. Clark G.C. Phillips E.R. Chacksfield B.C. A Neoproterozoic multi-rift sequence: the Grampian and Appin groups of the southern Monadhliath Mountains, Scotland Journal of the Geological Society, London...
View PDF for article title, U-Pb zircon geochronology of migmatization in the northern Central Highlands: evidence for pre-Caledonian (Neoproterozoic) tectonometamorphism in the Grampian block, Scotland
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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
... is a monotonous succession, 5 km or more in thickness, of centimetre to decimetre thick graded beds of micaceous psammite, semipelite, pelite and minor quartzite. The proportions of these lithologies vary from area to area ( Fig. 3 ) and, in places near the base of the Corrieyairick Subgroup, there are thin...
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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
.... Clark G.C. Phillips E.R. Chacksfield B.C. A Neoproterozoic multi-rift sequence: the Grampian and Appin groups of the southwestern Monadhliath Mountains of Scotland Journal of the Geological Society, London 1995 152 391 406 Hambrey M.J. Correlation of Late Proterozoic...
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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
... semipelitic formations, the Ruthven ( Highton 1986 ) or the Coire nan Laogh ( Haselock 1982 ) semipelites and the Monadhliath or Ardair semipelites respectively. In Strathnairn the Ruthven Semipelite comprises coarse gneiss previously assigned to the Central Highland Division. The formation, however...
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

Source of the Dalradian Supergroup constrained by U–Pb dating of detrital zircon and implications for the East Laurentian margin Available to Purchase

Peter A. Cawood, Alexander A. Nemchin, Martin Smith, Staci Loewy
Published: 01 March 2003
Journal of the Geological Society (2003) 160 (2): 231–246.
DOI: https://doi.org/10.1144/0016-764902-039
... Beds ( Goodman & Winchester 1993 ). The sample is from the basal unit known locally as the Sron Beag Schist and comprises a striped quartzose psammite and schistose semipelite with calcareous bands, taken NE of Lochan na Lairige at NN 5921 4113. Analysed zircon grains (82 analyses) range in age...
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