North West Highlands Geopark (2016) North West Highlands Geopark Geodiversity Audit and Action Plan 2013–2016
Additional notes: These web pages are sourced from the PDF North West Highlands Geopark Geodiversity Audit and Action Plan 2013–2016
NWHG Ref. 041 — Luban Croma
Location, grid reference
The site lies approximately 2 km to the north-east of the Altnacealgach Inn on the north side of Loch Borralan, Grid Ref.
GCR site reference, block, volume and notified feature of SSSI?
GCR Ref. 1228, Caledonian Igneous Block, Vol. 17. Notified feature of Ben More Assynt SSSI.
Description and geological significance
The site represents the variety of sills of the “hornblende porphyrite” suite and is important as an example of the range of minor intrusive rocks in Assynt which were emplaced prior to movements on the Ben More Thrust Plane.
Accessibility
The site requires a 2 km walk over rough and frequently boggy ground. There is therefore no all abilities access.
Conservation
Low conservation requirement due to the scale and location of the site.
Visibility and “clarity”
The site cannot be seen from the nearest road. Once reached, however, the various rock types are well exposed.
Interpretation and interpretation potential
There is very limited potential here for interpretation to the general public. The site is effectively only of interest to geology students and researchers.
Key references
PARSONS, I. 1999. Late Ordovician to mid-Silutian alkaline intrusions of the North-west Highlands of Scotland. In Stephenson, D., Bevins, R. E., Milward, D., Highton, A. J., Parsons, I., Stone, P. & Wadsworth, W. J. (eds) Caledonian Igneous rocks of Great Britain. Geological Conservation Review Series, 17, Chapman & Hall, 345–393. (site description page 386).