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Precambrian Rocks of England and Wales
(2000)
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.
GCR Volume No. 20
Summary
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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 interest.
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 latest Precambrian.
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:
(2000)
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.
GCR Volume No. 20
Summary
Download publication
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 interest.
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 latest Precambrian.
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 settings
- Sedimentary and volcaniclastic strata ranging from deep-water marine to terrestrial environments
- Plutonic igneous complexes
- Low- to high-pressure metamorphic rocks
- Intricate deformational structures
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