The BGS Lexicon of Named Rock Units — Result Details
Montrose Volcanic Formation
| Computer Code: | MVF | Preferred Map Code: | MVF |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Lochkovian Age (DO) — Pragian Age (DP) | ||
| Lithological Description: | Andesite, basaltic andesite, other andesitic rocks, volcaniclastic conglomerate and sandstone. | ||
| Definition of Lower Boundary: | Conformable, diachronous to some extent. Lower boundary at the base of the base of the lowest lava of the thick succession of andesitic lavas that separate the conglomerate and sandstone of the Deep Conglomerate Formation (above) and the Catterline Conglomerate Formation (below) in the area to the north of the River North Esk. Oversteps Barras Conglomerate Member, St John's Knap Sandstone Member and the Catterline Conglomerate Formation from north to south. | ||
| Definition of Upper Boundary: | At the eroded top of the thick succession of andesitic lavas, in the area to the north of the River North Esk, where these are conformably and somewhat diachronously overlain by the clast-supported Deep Conglomerate Formation, or cross-bedded sandstone of the Scone Sandstone Formation. | ||
| Thickness: | Up to 560 m thick in the type area, thinning out towards the west and south-west where it interfingers with lithic and volcaniclastic sandstone. | ||
| Geographical Limits: | North-eastern Midland Valley, between Stonehaven and Montrose. | ||
| Parent Unit: | Arbuthnott-Garvock Group (ATGK) | ||
| Previous Name(s): | Hypersthene Andesite [Obsolete Name and Code: Use MVF]
(-410)
Hypersthene Basalt Series [Obsolete Name and Code: Use MVF] (-4807) Part of Montrose Volcanic Formation [Obsolete Name and Code: Use MVF] (-4211) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | Foreshore narrows, by Johnshaven. | ||
| Partial Type Section | Foreshore sands of St. Cyrus. | ||
| Partial Type Section | Banks of Bervie Water and tributaries. | ||
| Reference(s): | |||
| Carroll, S, 1995. Geology of the Auchenblae District. British Geological Survey Technical Report. WA/95/80. | |||
| Carroll, S, 1994. Geology of the Stonehaven District. 1:10 000 Sheets NO88NW, NO88NE, NO88SW and NO88SE. British Geological Survey Technical Report WA/94/19. | |||
| Carroll, S. 1994. Geology of the Inverbervie and Catterline district, 1:10 000 sheets NO87NW, NO87NE and NO87SW. British Geological Survey, Technical Report, WA/94/20. | |||
| Campbell, R, 1913. The geology of south-eastern Kincardineshire. Transactions of the Royal Society of Edinburgh, Vol.48, pp.923-960. | |||
| 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 | |||
| Trewin, N H, 1987. Devonian of St. Cyrus and Milton Ness. 251-258 in Trewin, N H, Kneller, B C and Gillen, C, (editors), Excursion Guide to the Geology of the Aberdeen Area. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S067 S066 S057 S057 | |||