Floyd, P.A., Exley, C.S. & Styles, M.T. 1993. Igneous Rocks of South-west England, Geological Conservation Review Series No. 5. JNCC, Peterborough, ISBN 0 412 48850 7. The original source material for these web pages has been made available by the JNCC under the Open Government Licence 3.0. Full details in the JNCC Open Data Policy

Igneous rocks of south-west England

Contents

Title page and preliminaries

Acknowledgements

Access to the countryside Preface

1 The igneous rocks of south-west England

Introduction and site synthesis

2 Geological framework

The regional setting – Variscan Orogen

The local setting – Rhenohercynian zone of south-west England

Devonian volcanic activity

Carboniferous volcanic activity

Carboniferous–Permian plutonic activity

Post-orogenic volcanic activity

3 Lizard and Start Complexes (Group A sites)

Introduction

List of sites

Lithological and chemical variation

A1 Lizard Point

A2 Kennack Sands

A3 Polbarrow–The Balk

A4 Kynance Cove

A5 Coverack Cove–Dolor Point

A6 Porthoustock Point

A7 Porthallow Cove–Porthkerris Cove

A8 Lankidden

A9 Mullion Island

A10 Elender Cove–Black Cove, Prawle Point

4 Pre-orogenic volcanics (Group B sites)

Introduction

List of sites

Lithological and chemical variation

B1 Porthleven

B2 Cudden Point–Prussia Cove

B3 Penlee Point

B4 Carrick Du–Clodgy Point

B5 Gurnard's Head

B6 Botallack Head–Porth Ledden

B7 Tater-du

B8 Pentire Point–Rumps Point

B9 Chipley Quarries

B10 Dinas Head–Trevose Head

B11 Trevone Bay

B12 Clicker Tor Quarry

B13 Polyphant

B14 Tintagel Head–Bossiney Haven

B15 Brent Tor

B16 Greystone Quarry

B17 Pitts Cleave Quarry

B18 Trusham Quarry

B19 Ryecroft Quarry

5 Cornubian granite batholith (Group C sites)

Introduction

List of sites

Lithological and chemical variation

Petrogenesis

Cl Haytor Rocks area

C2 Birch Tor

C3 De Lank Quarries

C4 Luxulyan Quarry (Golden Point, Tregarden)

C5 Leusdon Common

C6 Burrator Quarries

C7 Rinsey Cove (Porthcew)

C8 Cape Cornwall area

C9 Porthmeor Cove

C10 Wheal Martyn

C11 Carn Grey Rock and Quarry

C12 Tregargus Quarries

C13 St Mewan Beacon

C14 Roche Rock

C15 Megiliggar Rocks

C16 Meldon Aplite Quarries

C17 Praa Sands (Folly Rocks)

C18 Cameron (Beacon) Quarry

C19 Cligga Head area

6 Post-orogenic volcanics (Group D sites)

Introduction

List of sites

Lithological and chemical variation

D1 Kingsand Beach

D2 Webberton Cross Quarry

D3 Posbury Clump Quarry

D4 Hannaborough Quarry

D5 Killerton Park and quarries

References

Glossary

Index

Figures

References