Geology field studies from Lleyn to Plynlimon

Geology field studies from Lleyn to PlynlimonThis book has been produced to assist A level and adult education geology students carrying out field work in North and Mid Wales. The region provides an outstanding range of geological features: turbidite sediments, major and minor igneous intrusions, extrusive rocks including pyroclastic ashes and pillow lavas, regional and contact metamorphic rocks, fold and fault structures, and heavy metal mineralisation. These features are often displayed in

This book has been produced to assist A-level and adult education geology students carrying out field work in North and Mid-Wales.

The region provides an outstanding range of geological features: turbidite sediments, major and minor igneous intrusions, extrusive rocks including pyroclastic ashes and pillow lavas, regional and contact metamorphic rocks, fold and fault structures, and heavy metal mineralisation. These features are often displayed in spectacular coastal or mountain settings, and the region is rich in old mine and quarry sites of geological and industrial archaeological interest.

Great advances in the understanding of geological processes have occurred since the introduction of theories of plate tectonics. The objective of this book is to review theoretical models for the geological evolution of North and Mid-Wales, and to evaluate the field evidence for these models.