Selborne Group

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Selborne Group
Stratigraphic range: Albian-Cenomanian 113–94  Ma
Type Group
Sub-units Gault Formation, Upper Greensand Formation
Underlies Chalk Group
Overlies Lower Greensand Group
Thicknessup to 110 m in the Weald, but in marginal areas may be less than 5 m thick.
Lithology
Primary Glauconitic Sandstone,
Other Mudstone, Limestone & Marl
Location
Region England
Country United Kingdom

The Selborne Group is a geologic group in England. It preserves fossils dating back to the Cretaceous period. It comprises the Gault Formation (informally/traditionally the Gault Clay or Blue Marl) and the overlying Upper Greensand Formation (earlier known as the Malm or Malm Rock). [1] [2]

See also

References

  1. "BGS Lexicon of Named Rock Units - Result Details".
  2. "BGS Lexicon of Named Rock Units - Result Details".