Pembroke Limestone Group

From Wikipedia, the free encyclopedia
  (Redirected from Blackrock (geology))
Jump to: navigation, search
Pembroke Limestone Group
Stratigraphic range: Lower Carboniferous
Rock of ages.jpg
Steeply dipping oolitic limestone of the Burrington Oolite Subgroup in Burrington Combe
Type Group
Unit of Carboniferous Limestone Supergroup
Sub-units Black Rock Limestone Subgroup, Burrington Oolite Subgroup
Underlies Marros Group
Overlies Avon Group
Thickness Up to 1025 m
Primary Limestone
Other Mudstone, sandstone
Region South Wales, Somerset
Type section
Named for Pembrokeshire

The Pembroke Limestone Group is a stratigraphic unit of Courceyan to Brigantian age (Lower Carboniferous) found in southern Wales and northern Somerset. It forms part of the Carboniferous Limestone Supergroup.[1]

See also[edit]


  1. ^ "Pembroke Limestone Group". The BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 10 January 2015.