Facial and Paleogeografic Understanding of Tertiary Sediments as Basis to Predict their Specific AMD Release

摘要

Acid Mine Drainage (AMD) is a known problem for many mining companies. In future overburden, metal sulphides are weathered, such as pyrite and marcasite. In lignite mining, eocene, oligocene and quarternary sediments of different genesis and lithological-geochemical composition are recovered and dumped. The aim of a modern opencast mining is to prevent or at least minimize AMD during the operation by structured excavation and tilting. This is done by mixing acidifying sediments and sediments containing carbonates. Therefore, it is necessary to know the facies formation of the sediment layers or aquifers, which will be the future overburden.