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Anomalies of the Earth’s Magnetic Total Field in Germany – A New Homogenous, High-resolution CompilationNormal access

Authors: C. M. Krawczyk, G. Gabriel, D. Vogel, R. Scheibe, H. Lindner, R. Pucher and T. Wonik
Event name: 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010
Session: Potential Fields (EAGE)
Publication date: 14 June 2010
DOI: 10.3997/2214-4609.201401312
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 2.68Mb )
Price: € 20

We present the first homogenous map of anomalies of the Earth’s magnetic total field for entire Germany. This high-resolution map is based on 50 individual ship based, airborne or ground surveys that were conducted between 1960 and 1990, and which are complemented by 17 new surveys after German reunification. The corresponding data sets were related to different geomagnetic reference systems, epochs, and altitudes. The new map images the entire anomaly pattern in Germany consistently in an altitude of 1000 m above sea level with the DGRF1980.0 as reference system. For the interpretation of magnetic anomalies the entire coverage of each anomaly including its dipole character is of special importance. Therefore, this homogenized and for the first time complete anomaly data set offers some new insights into crustal structures in Germany. On the large scale, regional tectonic units as the Variscan terranes in south and central Germany or the extent of old Scandinavian crust beyond North Germany as a relic of the collision between Baltica and Avalonia are well imaged by the magnetic anomalies. On the small scale, also details of local structures like the prominent volcanic areas of the Vogelsberg or the Eifel region are well exposed.

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