• August 22, 2026
Fractured coal

The term fractured coal refers to coal seams that contain pervasive natural cracks, joints and cleats which greatly influence their mechanical behavior, permeability and economic value. Fracturing may be the…

  • July 21, 2026
Young lignite

Younger forms of coal commonly known as lignite or brown coal occupy a unique place in the global energy landscape. Formed in relatively recent geological times, these deposits are typically…