ABSTRACT

This paper deals with the application of detailed face mapping in Greek, surface-mined, “zebra” type lignite, (consisting of lignite strata with numerous waste intercalations), as a tool for production quality control. The traditional procedure is described and introduction of a modern, based on digital camera, system is commented. Modern technology of digital cameras, using memory cards instead of film, is rapidly advancing during the last 2–3 years. An experimental program was investigated, with a Nikon® digital camera. Different types of prints can be produced, including a panoramic view along the whole bench face. Running this program supplies the Production Department with detailed mining face info, produced at an acceptable image quality, a very low cost and a very fast time.