Chengde Uplands

Chengde Uplands, region of extremely complex and rugged topography in northeastern China. It encompasses portions of southwestern Liaoning province, northeastern Hubei province, and southeastern Inner Mongolia Autonomous Region. The area is mostly composed of Precambrian granites, gneiss, and crystalline shales (older than about 540 million years), with some later (Mesozoic) sedimentary rocks that are some 65 to 250 million years old. Extensively folded along a northeast to southwest axis, the area is also extensively faulted...