The BGS Lexicon of Named Rock Units — Result Details

Parishholm Conglomerate Formation

Computer Code: PHM Preferred Map Code: PHM
Status Code: Full
Age range: Sheinwoodian Age (SS) — Sheinwoodian Age (SS)
Lithological Description: Reddish-grey unsorted pebble conglomerate, roughly bedded, clasts to 120mm but usually less than 30mm, angular to subrounded, probably matrix supported; many clasts are of igneous rocks.
Definition of Lower Boundary: Lowest occurrence of conglomerate above the Ree Burn Formation (greywackes).
Definition of Upper Boundary: Top of topmost bed of conglomerate, below the red and yellow sandstones of the overlying Douglas Water Arenite.
Thickness: 40m
Geographical Limits: Lower Palaeozoic inlier of the Hagshaw Hills, Scotland. (50k sheets, 23E, 23W and 15W).
Parent Unit: Glenbuck Group (GBK)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  Incomplete section, gully on right bank of Douglas Water, 0.6km southwest of Parish Holm Farm. 
Reference Section  Incomplete section, right-hand tributary of Douglas Water, 2.5km southwest of Parish Holm Farm. 
Rolfe, W D I, 1961. The Geology of the Hagshaw Hills Silurian Inlier, Lanarkshire. Transactions of the Edinburgh Geological Society, Vol.18, Part 3, 240-269. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S023 S023 S015