page_title: Geology of the Isle of Wight
section_title: Selborne Group
hierarchical_section_title: Geology of the Isle of Wight / Cretaceous / Selborne Group
caption_attribution_description: English: Blackgang Cliffs. These cliffs overlooking Blackgang Chine and its theme park are made of shale. The Isle of Wight has become famous as, "Dinosaur Isle" and it is in rocks like these that fossils have been found.
context_page_description: The geology of the Isle of Wight is dominated by sedimentary rocks of Cretaceous and Paleogene age. This sequence was affected by the late stages of the Alpine Orogeny, forming the Isle of Wight monocline, the cause of the steeply-dipping outcrops of the Chalk Group and overlying Paleogene strata seen at The Needles, Alum Bay and Whitecliff Bay.
context_section_description: The Selborne Group comprises claystones of the Gault Formation and sandstones of the overlying Upper Greensand Formation.
caption: Sandstones of the Upper Greensand Formation above Blackgang
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