sideburden

noun

1. The rock and subsoil that lies next to a mineral deposit such as a coal seam.

   “Settari (2002) and Osorio et al. (1999) also suggest that the analysis domain should include overburdens, sideburdens and underburdens for better accommodation of the coupling effects of stress changes and flow.”

   “Such sideburden speedups have not been seen to date in carbonate and deepwater settings.”

   “Therefore, the effective vertical stress in the sideburden will increase, too.”