Gribble, C. D. and Durrance, E. M.

Ardnamurchan — a guide to geological excursions - contents

Contents

Title page and preliminaries

Contents

Foreword

Acknowledgements

Access

Preface to the 1996 reprint

References (since 1976)

Introduction

The Moine country rocks

Mesozoic sedimentary rocks

Tertiary igneous rocks

Basalt lava flows

Centre 1

Vent rocks (and associated extrusive rocks)

Pitchstone lavas

Trachyte lavas

Intrusive rocks (plutonic and hypabyssal types)

Gabbro of Meall nan Con

Quartz-gabbro of Faskadale

Granophyre of Faskadale

The dolerites

Porphyritic dolerite

Quartz-dolerite of Camphouse

Augite-diorite of Camphouse

Beinn an Leathaid dolerite

Ben Hiant dolerite

Centre 2

Vent rocks

Intrusive plutonic rocks

Hypersthene-gabbro of Ardnamurchan Point

Older gabbro of Lochan an Aodainn

Quartz-gabbro of Garbh-dhail

Granophyre of Grigadale

Older quartz-gabbro of Beinn Bhuidhe

Quartz-gabbro of Aodann

Granophyric quartz-dolerite of Sgurr nam Meann

Eucrite of Beinn nan Ord

Quartz-gabbros of Loch Caorach and Beinn na Seilg

Younger quartz-gabbro of Beinn Bhuidhe

Fluxion gabbro of Portuairk

Aodann felsite

The acid and basic magmas of Ardnamurchan

The cone-sheets of centres 1, 2 and 3

Centre 3

Intrusive plutonic rocks

Quartz-gabbro of Faskadale

Fluxion gabbro of Faskadale

Gabbro of Plocaig

Porphyritic gabbro of Meall nan Con screen

Great Eucrite

Biotite-eucrite and inner eucrite

Quartz-gabbro of Meall an Tarmachain summit

Quartz-dolerite veined with granophyre

Quartz-gabbros

Fluxion gabbro of Glendrian

Fluxion gabbro of Sìthean Mór

Tonalite and quartz-monzonite

The structure of Centre 3 and the importance of fluxion structures in the gabbros

The petrogenesis of the rocks of Centre 3

References

Excursions

Excursion 1: Ormsaigbeg to Mingary Castle (sections A, B and C)

Excursion 2: Kilchoan, Beinn na Seilg and Aodann (sections A and B)

Excursion 3: Portuairk, Lighthouse and Achosnich (sections A and B)

Excursion 4: Sanna Bay to Rubha Carrach

Excursion 5: Ben (or Beinn) Hiant

Excursion 6: The augite-diorite of Camphouse and Faskadale Bay (sections A and B)

Excursion 7: Ring intrusions of Centre 3

Appendix

Glossary of Ardnamurchan place names

References

Figures and tables