Tamar Group

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Tamar Group
Stratigraphic range: Emsian-Tournaisian
Type Group
Sub-units Burraton Formation, Tavy Formation, Torquay Limestone
Underlies Chudleigh Group (faulted)
Overlies Meadfoot Group
Thicknessover 6,700 m (22,000 ft) on N Cornish coast
Lithology
Primary Mudstone
Other Siltstone, sandstone, limestone, spilite, hyaloclastite, tuff
Location
Region England
CountryFlag of the United Kingdom.svg  United Kingdom
Extentsouth Devon to north Cornwall
Type section
Named forvalley of River Tamar

The Tamar Group is an early Devonian to early Carboniferous geologic group in south Devon and north Cornwall in southwest England. The name is derived from the valley of the River Tamar on the Devon/Cornwall border. The Group comprises (in ascending order) the Torquay Limestone, Tavy and Burraton formations. [1] Some of the rocks are fossiliferous.

See also

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References

  1. http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=TAMA (BGS on-line lexicon of rock units)