DEM-Based Analysis of Interactions between Tectonics and Landscapes in the Ore Mountains and Eger Rift (East Germany and NW Czech Republic)

Remote Sensing

Louis Andreani³  Klaus P. Stanek²  Richard Gloaguen³  Ottomar Krentz¹ 

[1] Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie, Halsbrücker Str. 31A, 09599 Freiberg, Germany; E-Mail:;Institut für Geologie, TU Bergakademie Freiberg, Bernhard-von-Cotta Str. 2, 09599 Freiberg, Germany; E-Mails:;Department of Exploration, Helmholtz Institute Freiberg for Resource Technology, Halsbrücker Str. 34, 09599 Freiberg, Germany; E-Mail:

关键词: Eger Rift;    Ore Mountains (Erzgebirge);    geomorphic indices;    tectonics;    Germany (Saxony);    Czech Republic;   

DOI  :  10.3390/rs6097971

来源: mdpi

【 摘 要 】

Tectonics modify the base-level of rivers and result in the progressive erosion of landscapes. We propose here a new method to classify landscapes according to their erosional stages. This method is based on the combination of two DEM-based geomorphic indices: the hypsometric integral, which highlights elevated surfaces, and surface roughness, which increases with the topographic elevation and the incision by the drainage network. The combination of these two indices allows one to produce a map of erosional discontinuities that can be easily compared with the known structural framework. In addition, this method can be easily implemented (e.g., in MATLAB) and provides a quick way to analyze regional-scale landscapes. We propose here an example of a region where this approach becomes extremely valuable: the Ore Mountains and adjacent regions. The lack of young stratigraphic markers prevents a detailed analysis of recent fault activity. However, discontinuities in mapped geomorphic indices coupled to the analysis of river longitudinal profiles suggest a tight relationship between erosional discontinuities and main tectonic lineaments.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland