Detail
Type Ab. - Leeden is a Abbau (Surface Mine).
Kr Neurode - The Kreis for Leeden is Neurode. A Kreis is a government district (similar to a U.S. county).
See Albendorf 1) - A See notation means the entry is dependent on another entry. In this case, Leeden is dependent on Albendorf 1), which should be consulted for additional information.