The BGS Lexicon of Named Rock Units — Result Details

Rhiroy Member

Computer Code: RHIR Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Olive grey (5Y 4/2), soft to firm, muddy and shelly, matrix-supported diamicton.
Definition of Lower Boundary: Unconformable and locally erosive boundary with Loch Broom Shell Bed and (parent) Assynt Glacigenic Formation below.
Definition of Upper Boundary: Unconformably overlain by the Summer Isles Formation.
Thickness: Up to 7 m thick
Geographical Limits: Inner Loch Broom
Parent Unit: Assynt Glacigenic Formation (ASGL)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  57.8655 deg N, 05.1063 deg W. BGS vibrocore 57-06/267, from 2.06-3.40 m below sea bed, inner Loch Broom. Stoker, M S and Bradwell, T. In press. Quaternary geology of the Summer Isles region - a brief explanation of the marine environment map. Sheet Explanation of the British Geological Survey. 1:50 000 Special Sheet Summer Isles (Scotland). 
Reference(s):
Stoker, M S, Bradwell, T, Howe, J A, Wilkinson, I P & McIntyre, K. 2009. Lateglacial ice-cap dynamics in NW Scotland: evidence from the fjords of the Summer Isles region. Quaternary Science Reviews, 28, 3161-3184. 
Stoker, M S and Bradwell, T. In press. Quaternary geology of the Summer Isles region - a brief explanation of the marine environment map. Sheet Explanation of the British Geological Survey. 1:50 000 Special Sheet Summer Isles (Scotland). 
Bradwell, T and Stoker, M S. 2010. Quaternary Lithostratigraphy of the NW Highlands. In: Lukas, S. & Bradwell, T. (eds), The Quaternary of Western Sutherland and adjacent areas. (London: Quaternary Research Association), 29-37. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable