The BGS Lexicon of Named Rock Units — Result Details
Lyne Formation
| Computer Code: | LYNE | Preferred Map Code: | LYNE |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Chadian Substage (CI) — Holkerian Substage (CQ) | ||
| Lithological Description: | Cyclical sequences of sandstone, siltstone, mudstone and thin limestones, with localised dolomitic cementstones and distinctive algal beds. | ||
| Definition of Lower Boundary: | Comformable on the Ballagan Formation (Kirkbean, Annandale). At Bewcastle the base is not seen; elsewhere it may be unconformable on Devonian or older strata. | ||
| Definition of Upper Boundary: | A diachronous upper boundary with the Fell Sandstone Formation, locally defined as the base of the Whitberry Marine Bed at Bewcastle. | ||
| Thickness: | At least 900 m thick, measured in the Bewcastle area. | ||
| Geographical Limits: | The Solway Basin, Northumberland. Mapped from Kirkbean Sheet S5E/6, to Roxburghshire Sheet S11/17, and Bewcastle Sheet E12. | ||
| Parent Unit: | Border Group (BDR) | ||
| Previous Name(s): | Border Group, Lower [Obsolete Name And Code: Use BGN Or LYNE]
(LBG)
Lower Border Group [Obsolete Name And Code: Use BGN or LYNE] (LBO) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Lynebank Member (upper part), River Black Lyne, SE of Holmhead Farm (Day, 1970). | ||
| Type Section | Cambeck Member (Lower Antiquatonia Band to base of Whitberry Band), River White Lyne, Bewcastle (Day, 1970). | ||
| Type Section | Lynebank Member (lower part), Ellery Sike to Nixontown on the River White Lyne (Day, 1970). | ||
| Type Section | Bewcastle Member (Bogside Limestone to base of Main Algal Member), Ashy Cleuch upstream from Stockastead Quarry (Day, 1970). | ||
| Type Section | Cambeck Member (Barrow's Pike Sandstone to base of Whitberry Band), Whitberry Burn, Bewcastle (Day, 1970). | ||
| Type Section | Southerness Limestone Formation, now Southerness Member (see existing Lexicon entry), shore section south of Southerness, Kirkcudbrightshire (Craig, 1956; McMillan, 2000; Upper Palaeozoic in Lintern and Floyd, 2000). | ||
| Type Section | Main Algal Member, Birky Cleuch, a tributary of the Kirk Beck, Bewcastle (Day, 1970). | ||
| Reference(s): | |||
| Nairn, A E M. 1956. The lower Carboniferous rocks between the rivers Esk and Annan Dumfriesshire. Transactions of the Geological Society of Glasgow, 22, p.80-93. | |||
| Leeder, M R. 1974. Lower Border Group (Tournaisian) fluvio-deltaic sedimentation and palaeogeography of the Northumberland Basin. Proceedings of the Yorkshire Geological Society, Vol.40, 129 - 180. | |||
| Lumsden G I and Wilson R B. 1961. The stratigraphy of the Archerbeck Borehole, Canonbie Dumfriesshire. Bulletin of the Geological Survey of Great Britain, No.18, 1-89. | |||
| Lumsden G I, Tulloch W, Howells M F and Davies A. 1967. The geology of the neighbourhood of Langholm. Memoir of the Geological Survey, Sheet 11 (Scotland). | |||
| McMillan, A A. 2000. Upper Palaeozoic in Lintern, B C and Floyd, J D. 2000. Geology of the Kirkcudbright-Dalbeattie District. Memoir of the British Geological Survey, Sheets 5W, 5E and part of 6W (Scotland). | |||
| Nairn, A E M. 1958. Petrology of the Whita Sandstone, southern Scotland. Journal of Sedimentary Petrology. Vol. 28, p. 57 - 64. | |||
| Smith, R and McMillan, A A. 1996. Mineral investigations in the Northumberland Trough: part 3, Ecclefechan - Waterbeck area. BGS Mineral Recconnaisance Programme Open File Report No. 21. | |||
| Lintern, B C and Floyd, J D. 2000. Geology of the Kirkcudbright-Dalbeattie District. Memoir of the British Geological Survey, Sheets 5W, 5E and part of 6W (Scotland). | |||
| Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. | |||
| Day, J B W and others, 1970. Geology of the neighbourhood around Bewcastle. Memoir of the British Geological Survey, Sheet 12. (England and Wales). | |||
| Craig, G Y. 1956. The Lower Carboniferous outlier of Kirkbean, Kirkcudbrightshire. Transactions of the Geological Society of Glasgow, Vol. 22, 113 - 132. | |||
| Deegan, C E. 1973. Tectonic control of sedimentation at the margin of a Carboniferous depositional basin in Kirkcudbrightshire. Scottish Journal of Geology, Vol. 9, p. 1 - 28. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S010 S011 S017 E012 S006 S005 S010 | |||