Research topic: Old Red Sandstone

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Old Red Sandstone. (Image by Britannica)

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Old Red Sandstone

The Columbia Encyclopedia, Sixth Edition
Old Red Sandstone series of red and brown sandstones, conglomerates, and shales deposited in Wales and Scotland and in England near the Welsh and Scottish borders in the Devonian period of geologic time. The Old Red Sandstone, in contrast to the typical formations of the Devonian, is largely a continental formation, laid down in freshwater and on land as a result of the erosion of the highlands of the Silurian period . It is very thick in Scotland and contains a large assemblage of well-preserved fossils, particularly of the Devonian fishes. The Old Red Sandstone was correlated with the... Read more
Old Red Sandstone
Old Red Sandstone Early in the geological exploration...the Devonian system, known as the Old Red Sandstone, was recognized as a distinctive unit...to establish the correlation of the Old Red Sandstone with the marine rocks in south-west... Read more
Old Red Sandstone Continent
Old Red Sandstone Continent The continental facies of the Devonian in the British Isles. It is characterized by red sandstones and conglomerates which were deposited under terrestrial conditions. Read more

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