Reading the rocks

de Marcia Bjornerud

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 storyteller, Bjornerud uses anecdotes and metaphors to remind us that our home is a living thing with lessons to teach. She shows how our planet has long maintained a delicate balance, and how the global give-and-take has sustained life on Earth through numerous upheavals.--From publisher description.