Brockram is a type of rock found in northern

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

. It is a basal

breccia Breccia () is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix. The word has its origins in the Italian language, in which it means "rubble". A breccia may have a variety of di ...

of cemented

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

and

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...

fragments dating from the

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...

period, forming part of the Appleby Group. Brockram outcrops in the

Whitehaven Whitehaven is a town and port on the English north west coast and near to the Lake District National Park in Cumbria, England. Historically in Cumberland, it lies by road south-west of Carlisle and to the north of Barrow-in-Furness. It is th ...

and

Workington Workington is a coastal town and civil parish at the mouth of the River Derwent on the west coast in the Allerdale borough of Cumbria, England. The town was historically in Cumberland. At the 2011 census it had a population of 25,207. Loca ...

district (Geological survey of Gt. Britain sheet 28). Saltom Bay gives a good exposure of it. Along the coast (Saltom Bay to St. Bees ) its thickness varies from 0.75m to 20.5m. Inland boreholes have revealed its thickness to be up to 121m. The Geology of the Whitehaven and Workington district. T. Eastwood et al. pub. HMSO. 1931. page 206, Plate VIa. Brockram has been used as a building material in

Kirkby Stephen Kirkby Stephen () is a market town and civil parish in Cumbria, North West England. Historically part of Westmorland, it lies on the A685, surrounded by sparsely populated hill country, about from the nearest larger towns: Kendal and Penrith. ...

and the rest of the Vale of Eden where it has also been quarried for

lime burning A lime kiln is a kiln used for the calcination of limestone ( calcium carbonate) to produce the form of lime called quicklime (calcium oxide). The chemical equation for this reaction is : CaCO3 + heat → CaO + CO2 This reaction can take pla ...

. It is visible also beside a river bed under a bridge on the edge of Kirkby Stephen.

References

Breccias Geology of England Permian United Kingdom {{Petrology-stub