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.

Tamar Group
Stratigraphic range: Emsian-Tournaisian
TypeGroup
Sub-unitsBurraton Formation, Tavy Formation, Torquay Limestone
UnderliesChudleigh Group (faulted)
OverliesMeadfoot Group
Thicknessover 6,700 m (22,000 ft) on N Cornish coast
Lithology
PrimaryMudstone
OtherSiltstone, sandstone, limestone, spilite, hyaloclastite, tuff
Location
RegionEngland
Country United Kingdom
Extentsouth Devon to north Cornwall
Type section
Named forvalley of River Tamar

See also

edit

References

edit
  1. ^ http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=TAMA (BGS on-line lexicon of rock units)
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.