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Hutton's angular unconformity at Siccar Point where 370-million-year-old Devonian Old Red Sandstone overlies 435-million-year-old Silurian greywacke. [2]Old Red Sandstone, abbreviated ORS, is an assemblage of rocks in the North Atlantic region largely of Devonian age.
The Munster Basin is a late Middle to Upper Devonian age extensional (rift) sedimentary basin in the south-west of Ireland. [2] [3] The basin fill comprises fluvial Old Red Sandstone (ORS) magnafacies [4] [5] [6] with minor silicic volcanic [7] and mafic sub-volcanic [8] centres.
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2 References. Toggle the table of contents ... Sandstone: Location; Region: Wales: Country ... "Senni Beds of the Devonian Old Red Sandstone, Dyfed, Wales: anatomy of ...
This thick sequence of sandstones, siltstones, mudstones and conglomerates is divided into three units; the Lower Old Red Sandstone is represented by rocks assigned to the Arbuthnott-Garvock and Strathmore groups. They are in turn made up of a variety of individual formations characterized by sandstones and to a lesser extent conglomerates and ...
Yesnaby (historic: Yeskenaby, Yestnaby) is a historic township [1] [2] in Sandwick, on the west coast of Orkney Mainland, Scotland, south of Skara Brae. It is renowned for its spectacular Old Red Sandstone coastal cliff scenery which includes sea stacks, blowholes, geos and frequently boiling seas. A car park, coastal trail and interpretive ...
The Dwarfie Stane is a megalithic chambered tomb carved out of a titanic block of Devonian Old Red Sandstone located in a steep-sided glaciated valley between the settlements of Quoys and Rackwick on Hoy, an island in Orkney, Scotland. [1] The stone is a glacial erratic located in desolate peatland. [2] The site is managed by Historic ...
The Old Red Sandstone is a magnafacies of red beds and lacustrine deposits from the Late Silurian to the Carboniferous. The NE segment of the Highland Boundary Fault is marked by an abrupt change in the dip of the Old Red Sandstone from around 20° to near-vertical and subsequently exposes the Old Red Sandstone basement. [3]