Geochemistry of the Bude and Bideford Formations, Devon

S. Diskin*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The depositional relationship of the Bude and Bideford formations is not fully understood, therefore a geochemical study was undertaken to help elucidate it. Twenty one samples were collected from mudstones and siltstones from the Bude and Bideford (including Westward Ho!) formations and were analysed for major and trace (including REEs) elements as determined by ICP-AES and ICP-MS. Major and trace element results, in general do not suggest any differences between the geochemistry of the two formations. However, for REEs, two non-overlapping fields can be drawn showing the distribution of La-N/Sm-N against Gd-N/Yb-N. The Bideford Formation shows a comparative enrichment in LREEs and depletion in HREEs as would be expected for sediments with more Archaean crustal input. The Bude Formation sediments all fall into a field comparable with the Westphalian of South Wales, whereas the Bideford Formation sediments do not, indicating that they may not be depositionally related.

Original languageEnglish
Title of host publicationGeoscience in South-West England
Subtitle of host publicationVolume 12 Part 1 2008
EditorsD. Pirrie
Number of pages8
Publication statusPublished - 2008
Externally publishedYes
Event46th Annual Meeting of the Ussher-Society - St Ives
Duration: 3 Jan 20085 Jan 2008

Publication series

NameProceedings of the Ussher Society
ISSN (Print)0566-3954


Conference46th Annual Meeting of the Ussher-Society
CitySt Ives


  • Bude Formation
  • Bideford Formation
  • Westphalian provenance
  • North Devon
  • Pennsylvanian-Permian Age
  • Stream Sediment
  • Crustal Evolution
  • Wet Mountains
  • USA
  • Provenance
  • Colorado
  • Element
  • Sandstones
  • Siltstones


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