The BGS Lexicon of Named Rock Units — Result Details
Lintrathen Tuff Member
Computer Code: | LNP | Preferred Map Code: | LNP |
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Status Code: | Full | ||
Age range: | Pridoli Epoch (SO) — Lochkovian Age (DO) | ||
Lithological Description: | A quartz-feldspar-biotite-bearing, vitric tuff of dacitic composition, locally partially welded. | ||
Definition of Lower Boundary: | The unconformable base of the quartz-feldspar-biotite-bearing vitric tuff of dacitic composition, or at the incoming of similar rocks towards the top of the Crawton Volcanic Formation. | ||
Definition of Upper Boundary: | The top of the quartz-feldspar-biotite-bearing vitric tuff of dacitic composition in the Crawton Volcanic Formation, overlain by strata or lavas of the Arbuthnott-Garvock Group. | ||
Thickness: | Up to 150m thick. | ||
Geographical Limits: | Dunkeld to Glenbervie. | ||
Parent Unit: | Crawton Volcanic Formation (CVF) | ||
Previous Name(s): | Glenbervie Porphyry [Obsolete Name and Code: Use LNP]
(-2911)
Lintrathen Porphyry [Obsolete Name and Code: Use LNP] (-2912) Quartz Porphyry of Lintrathen [Obsolete Name and Code: Use LNP] (-2913) Lintrathen Ignimbrite [Obsolete Name and Code: Use LNP] (-3538) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Section | Section in River Isla, not known in detail. | ||
Partial Type Section | Stream exposures at Glenbervie. | ||
Reference(s): | |||
Armstrong, M, and Paterson, I B. 1970. The Lower Old Red Sandstone of the Strathmore Region. Report of the Institute of Geological Sciences No. 70/12 | |||
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. | |||
Paterson, I B and Harris, A L. 1969. Lower Old Red Sandstone ignimbrites from Dunkeld, Perthshire. Report of the Institute of Geological Sciences, No. 69/7. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
S056 S056 S066 S066 S057 S057 |