Heifangtai, Gansu Province, China: Collapse in Loess Deposits Ground collapse/subsidence in China, most likely caused by movement of water through the loess deposits from the high relief in the right of this picture, to the low relief in the left of the picture. The scale of the collapse can be seen in relation to the man at the forefront. (c) Geology for Global Development, 2012 For other images ...[Read More]