Reading the rocks

This armchair guide to the making of the geologic record shows how to understand messages written in stone. To many of us, the Earth's crust is a relic of ancient, unknowable history--but to a geologist, stones are richly illustrated narratives, telling gothic tales of cataclysm and reincarnation. For more than four billion years, in beach sand, granite, and garnet schists, the planet has kept a rich and idiosyncratic journal of its past. Fulbright Scholar Bjornerud takes the reader along on an eye-opening tour of Deep Time, explaining what we see and feel beneath our feet. Both scientist and…