Riddles in Stone covers a variety of fascinating controversies and startling differences of opinion that accompanied the evolution of the study of earth sciences in southern Africa. Over the centuries, debates have raged amongst geologists, and between geologists and biologists, physicists and theologians, on controversies such as the age of the earth and its lifespan; the apocalypse; Noah's Flood as myth or fact; continental drift; the origin of ore deposits of gold, diamonds, copper and platinum; and Schwarz's well-meaning but forgotten Kalahari Scheme. This encyclopedic book is the result of a lifetime's work. Although scrupulously rooted in scientific literature, it maintains an accessible and entertaining tone and shows how consensus amongst a majority may be proof of nothing.
Hugh Eales is professor emeritus of geology at Rhodes University (South Africa). He founded the School of Exploration Geology in 1978 and is a Life Fellow of the Geological Society of South Africa.