• Source: Yesnaby Sandstone Group

The Yesnaby Sandstone Group is a Devonian lithostratigraphic group (a sequence of rock strata) in west Mainland Orkney, Scotland. The name is derived from the locality of Yesnaby where the strata are exposed in coastal cliffs.




Outcrops


These strata are only exposed on either side of the Garthna Geo Fault in the Yesnaby area of west Mainland, Orkney.




Lithology and stratigraphy


The Group comprises the Qui Ayre Sandstone and the Harra Ebb Sandstone. The basal beds are talus and alluvial fan facies deposited in a fluvial or lake marginal environment probably during the Emsian Stage of the Devonian Period.




References






External links


Yesnaby Geology Map

Kata Kunci Pencarian:

• Yesnaby Sandstone Group
• Bressay
• Yesnaby
• Scalpay, Inner Hebrides
• Scarp, Scotland
• Foula
• Scalpay, Outer Hebrides
• Mainland, Orkney
• Handa Island
• Wyre, Orkney