The Correlation of the Ballachulish and Perthshire (Iltay) Dalradian Successions

Rast, N.; Litherland, M.

doi:10.1017/s0016756800055734

Cited by 37 publications

(39 citation statements)

References 13 publications

(6 reference statements)

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“…They range in original composition from homogeneous or laminated slaty mudstone, some with sandy layers, to finely banded siltstone, sandstone, quartzite, and homogeneous pale-to dark-grey limestone. The relative proportions of the different clast types varies upwards in the sequence from 60% of fine-grained quartzite clasts and 3% limestone in the lowest metabreccia, to 15% of fine-grained quartzite clasts and 60% limestone in the highest metabreccia; the other constituents making up the remaining 25-37% of the population are relatively constant in amount (Litherland, 1970).…”

Section: Descriptionmentioning

confidence: 99%

“…The rocks at this GCR site consist of the Selma Black Slates overlain by the stratigraphically younger Selma Breccia (Litherland 1970(Litherland , 1975; the regional geological setting is shown on Figure 24. The rocks are affected by several upright folds of bedding, but overall the succession dips and youngs to the south-east.…”

Section: Descriptionmentioning

confidence: 99%

“…The succeeding Selma Breccia was subdivided by Litherland (1970Litherland ( , 1975 into 5 metabreccia units separated by 4 interbreccia units, which have a total thickness of up to 100 m.…”

Section: Descriptionmentioning

confidence: 99%

“…The Benderloch Slide is no longer regarded as part of an intraregional ‗Boundary Slide', but it can be correlated with the Ballachulish Slide found farther north (Rast and Litherland, 1970).…”

Section: Introductionmentioning

confidence: 99%

“…It was first described by Flett (in Kynaston and Hill, 1908) who interpreted it as a ‗crush breccia', a rock formed by the in-situ brecciation of originally intact rock layers. A detailed field and microscopic study of the formation was made subsequently by Litherland (1970Litherland ( , 1975 who concluded that it had formed by submarine slumping of sediment. …”

Section: Introductionmentioning

confidence: 99%

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The Dalradian rocks of the central Grampian Highlands of Scotland

Treagus¹,

Tanner

Thomas

et al. 2013

Proceedings of the Geologists' Association

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The Central Grampian Highlands, as defined here, are bounded to the north-west by the Great Glen Fault, to the south-west by Loch Etive and the Pass of Brander Fault and to the south-east by the main outcrop of the Loch Tay Limestone Formation.The more arbitrary northern boundary runs north-west along the A9 road and westwards to Fort William.The detailed stratigraphy of the Dalradian Supergroup ranges from the uppermost Grampian Group through to the top of the Argyll Group, most notably seen in the two classic areas of Loch Leven-Appin and Schiehallion-Loch Tay; Southern Highland Group strata are preserved only in a small structural inlier south of Glen Lyon.Major F1 and F2 folds are complicated by co-axial northeasttrending F3 and F4 folding, as well as by locally important northor NW-trending folds. In the Loch Leven area, nappe-like F1 folds verge to the north-west, whereas to the south-east the major recumbent F1/F2 Tay Nappe verges to the south-east.The trace of the upright Loch Awe Syncline lies between the opposing nappes, but

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Section: Descriptionmentioning

confidence: 99%

Section: Descriptionmentioning

confidence: 99%

“…The succeeding Selma Breccia was subdivided by Litherland (1970Litherland ( , 1975 into 5 metabreccia units separated by 4 interbreccia units, which have a total thickness of up to 100 m.…”

Section: Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Dalradian rocks of the central Grampian Highlands of Scotland

Treagus¹,

Tanner

Thomas

et al. 2013

Proceedings of the Geologists' Association

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The structure of the Moine and Dalradian Rocks in the Dalmally District of Argyllshire, Scotland

Roberts

Treagus

1975

Geological Journal

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Two phases of deformation are described from the area. D1 is related to the first phase rnovements widely rccognised in the Dalradian; D2 is related to more localised modifications of the D1 fold pattern.Four major D2 folds are recognised from the evidence of minor structures. Three of these, the Beinn Chuirn, the Ben Lui and the Ra Chreag Folds, had previously been considered as D1 structures, whilst the fourth, the Dalmally Fold, was unrecognised. These folds provide continuity between the southeast facing of the D1 folds of the Moine and Ballachulish Succession of Glen Orchy (Thomas and Treagus 1968) and the southeast facing of the D1 Tay Nappe (Shacketon 1958) in the Iltay SuFession above. The D2 deformatjon reaches a climax at the junction between the two Successions, the lltay Boundary Slide, which is now regarded as a D2 structure. The regional implications of these results are briefly considered.

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The Appin Group

Wright¹

1988

Later Proterozoic Stratigraphy of the Northern Atlantic Regions

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The Correlation of the Ballachulish and Perthshire (Iltay) Dalradian Successions

Abstract: The historical background of correlations between various Dalradian successions is examined, and on the basis of recent mapping and observations it is suggested that the Ballachulish succession is the downward extension of the standard Perthshire sequence.

Cited by 37 publications

References 13 publications

The Dalradian rocks of the central Grampian Highlands of Scotland

The Dalradian rocks of the central Grampian Highlands of Scotland

The structure of the Moine and Dalradian Rocks in the Dalmally District of Argyllshire, Scotland

The Appin Group

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