The Heron Group is a Triassic lithostratigraphic group (a sequence of rock strata) beneath the central and northern North Sea which is composed of alluvial deposits.[1][2]

Heron Group
Stratigraphic range: Late Triassic Epoch
TypeGroup
OverliesZechstein Group
Location
RegionNorth Sea
CountryScotland

References

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  1. ^ Stratigraphical Chart of the United Kingdom:Northern Britain, British Geological Survey
  2. ^ http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=HERO (BGS on-line lexicon of rock units)