The evolution of the Nastberg scoria cone revealed by drone-based 3D imaging

Abstract

The monogenetic Nastberg scoria cone (East Eifel Volcanic Field, Germany) offers exceptional exposure due to extensive quarrying in the past. At the same time this complicates the reconstruction of the remaining proximal and distal parts of the cone. To overcome that obstacle we have used drone-based high-resolution 3D models of the cone, in addition to geochemical and petrological methods. The results show that during early stages a large crater unconformity developed through the edifice. This was most likely followed by the collapse of the north-eastern sector. During the late stage the focus of the eruptive activity shifted to the southern part.