In complex areas of western China, near-surface structures often have varied lithologies, a big difference in the degree of weathering, steeply dipping formations, thick low-velocity layers (LVL), and severe rises and falls of the top interfaces of high-velocity layers. All of these factors make it difficult to build near-surface models, compute statics, and conduct quality control.

You do not have access to this content, please speak to your institutional administrator if you feel you should have access.