Hawthorn Quarry

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Hawthorn Quarry is a Site of Special Scientific Interest in the Easington district of west County Durham, England. It is a disused quarry, which is situated just north of the eastern end of Hawthorn Dene SSSI.The site has been identified by the Geological Conservation Review as being of national importance for its exposures of Middle Magnesian Limestone, which include reef beds, overlying boulder beds, stromatolites and bedded oolites. The site is considered valuable for an understanding of the later evolution of carbonate environments of the Middle Magnesian.

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