Northampton Sand Formation

Northampton Sand Formation
Stratigraphic range: Aalenian 174–170 Ma
↓
Dragline opencast mining of the ironstone at Weldon, Northamtonshire.
Type Geological formation
Unit of Inferior Oolite Group
Sub-units Corby Ironstone Member, Duston Member (formerly Variable Beds)[1]
Underlies Grantham Formation, Rutland Formation, Horsehay Sand Formation
Overlies Whitby Mudstone Formation
Thickness Up to 21 m, typically 4-8 m
Lithology
Primary Sandstone
Other Ironstone, Oolitic Limestone
Location
Region East Midlands
Country England
Extent Northamptonshire, Lincolnshire
Type section
Named for Northampton
Named by Sharp
Location Duston Top Pit
Year defined 1870
Thickness at type section 11.6 m

The Northampton Sand Formation is a Middle Jurassic geological formation which is placed within the Inferior Oolite Group.[2][3] It was formerly worked extensively in Northamptonshire for its ironstone. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[4]

See also

Footnotes

  1. ↑ Sutherland, D.S. (2003). Northamptonshire Stone. Dovecote Press. p. 31. ISBN 190434917X.
  2. ↑ British Geological Survey 2002 Kettering England and Wales sheet 171, solid & drift geology. 1:50,000 (Keyworth, Nottingham: BGS)
  3. ↑ "Northampton Sand Formation". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 30 July 2018.
  4. ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

References

  • Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp.  ISBN 0-520-24209-2.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.