Locations of individual study areas are described in the text. After Keppie (2000). The Appalachian orogen of North America is divisible with some controversy into five tectonolithologic zones which ...

A substantial progress has been made in the exploration of Paleozoic coal seams in Yan'an, Shaanxi province of Northwest ...

Head to to get 50% off your first Keeps order. It's a Paleozoic party! We’re throwing it back 530 million years. When the Earth woke up from an ice age Sadhguru's Message to America After ...