Precambrian Rocks of England and Wales
This volume describes the Precambrian GCR sites found in England and Wales. These exposures of Precambrian rocks are sparsely distributed and occupy fairly small areas of southern Britain, yet they are associated with some of Britain's most beautiful countryside.
The Precambrian basement of England and Wales is exposed
within a number of generally small inliers that act as 'windows',
revealing rocks of considerable geological diversity that have long
been the focus of scientific research and educational
Because of their complexity and isolated nature, the various
Precambrian occurrences proved difficult to correlate regionally
before the advent of precise radiometric age dating and in-depth
geochemical analysis. The relevance of these new advances is
therefore highlighted in this volume, which groups the various GCR
sites into networks reflecting the current conceptual framework of
the Precambrian basement as a 'collage' of separate terranes.
Critical exposures are described which show that the terranes
evolved independently of each other, but were subsequently
amalgamated together along major tectonic boundaries, in the very
The featured GCR sites are intended to show the broad spectrum
of lithologies and geological processes representative of each
terrane. Consequently, the volume includes accounts of:
- Volcanic sequences formed in a variety of tectonic
- Sedimentary and volcaniclastic strata ranging from deep-water
marine to terrestrial environments
- Plutonic igneous complexes
- Low- to high-pressure metamorphic rocks
- Intricate deformational structures
A palaeontology chapter is devoted to the three site groupings
that show rare, enigmatic Precambrian fossil impressions, referred
to the world-famous Ediacaran faunal assemblage.
This book with its extensive bibliography and glossary of
terms will be an invaluable introduction and information resource
for those amateur and professional geologists, and students,
wishing to explore some of the most scenically beautiful and
geologically fascinating regions of our island.
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252 pages, illustrations, A4 hardback
ISBN 1 86107 487 5
Please cite as: Carney, J.N., Horak, J.M., Pharaoh, T.C., Gibbons, W., Wilson, D., Barclay, W.J., Bevins, R.E., Cope, J.C.W. & Ford, T.D. (2000) Precambrian Rocks of England and Wales, Geological Conservation Review Series, No. 20, Joint Nature Conservation Committee, Peterborough, 252 pp.