References in periodicals archive ?
Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions.
The fracturing and displacement of quartz grains in carbonate-cemented siliciclastic rocks has been described in many places (Becker & Day 1916; Dapples 1971; Watts 1978; Buczynski & Chafetz 1987; Braithwaite 1989), among others also in the Old Red Sandstone of Scotland (Saigal & Walton 1988).
After the collision of the continents of Laurentia and Avalonia, Britain became part of the Old Red Sandstone continent, which lay just south of the Equator in a hot and arid climate.
Perched on a windy ridge, the garden has the blackest of soil, which I always thought strange, since mine not far away has the characteristics of the underlying Old Red Sandstone - heavy, red clay.
The reality suggested by the marks in the Old Red Sandstone fossils from Powys is more staid than the Guinness advert's interpretation, but the new evidence is important because it could point to the first time vertebrates evolved limbs.
This will be particularly so when the top soil is composed largely of clay produced by the chemical weathering of the underlying rock strata which in large parts of South Wales is Old Red Sandstone.
This is the one hour of the year I can move around the promontory, down the old red sandstone bulwark to the limestone karst, that landsker where geology's language changes, down to the crevices and gwlis and overhung beaches that are usually no-gos, exclusive as some Mediterranean enclave, whitewalled, camera-scanned.
Other herbs like purple saxifrage reach the southernmost edge of their range in Britain on Powys's old red sandstone cliffs.
Much of the rural Welsh landscape is characterised by its traditional stone field boundaries, with Old Red Sandstone walls in the Brecon Beacons and the Black Mountains, Carboniferous limestone and Millstone Grit in the Valleys and limestone and slate in West and North Wales.
The old red sandstone buildings of the Prya site, constructed 100 years ago with a craftsmanship which will last another 100 years, were formerly the site of a rural hospital.
As a member of the Grasshopper group of farmers, Stephen aims to exploit the quality of the old red sandstone, lowland peat and alluvial silt and clay to achieve maximum returns from grassland forage and reduce production costs.
There are also dramatic rock formations in the old red sandstone cliffs.