Integrated Mapping of Rare Earth Element Mineralization Using Hyperspectral Imaging and Laser Induced Fluorescence Spectroscopy in Drill Cores from the Storkwitz Carbonatite, Germany

The growing importance of rare earth elements (REEs) in sustainable technologies necessitates anefficient assessment of potential resource targets within the European Union. Traditional analyticaltechniques for REE determination have drawbacks like destructive and time-consuming samplepreparation, but hyperspectral imaging (HSI) and laser...

Applications of geophysical measuring methods for the exploration and securing of old mine workings near the surface using the example of the former lignite mine “Robertshall”

In the former lignite mine "Robertshall" near Hamburg damage to the surface was caused by the collapse of underground cavities originating from old mine workings of a lignite mine which had been in operation between 1920 and 1922. During the investigation of the subsurface by drilling it was noticed that the existing mine plans are incomplete....

Developing concepts for the mine planning of deep-sea polymetallic nodules

Over the last decade, interest in deep-sea mining of Polymetallic Nodules (PN) has reignited. It is driven by an increasing demand of metals that are critical for the digital economy and modern technologies such as batteries. Methods for resource estimation of PN are known and commercially available. There is however no standard method of a...