Book Review



By now almost everyone interested in tectonic evolution of our planet has heard something of the intriguing similarities that exist among Paleozoic fauna and carbonate platforms of the Appalachian margin of Laurentia, and the ancient margin of Gondwana. One of the great developments in continental tectonics over the past two decades has been the recognition of a fragment of rifted Laurentian crust sitting in the middle of the Andean Precordillera near San Juan, Argentina. The idea of a shared geological history between Gondwana and Laurentia grabbed a foothold in the 1980s. However, it took off with Ian Dalziel's famous Laurentian “end-run” around South America that, in 1991, provided a frame-work within which to discuss specific tectonic interactions between parts of North America and South America.