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Re-Processing of profiles GRANU-9501 and MVE-90: Implications for the geologic interpretation in the SW-Vogtland area

As part of the German Continental Reflection Seismic Program (DEKORP), the deep seismic reflection profiles GRANU-9501 and MVE-90 were acquired in the Saxothuringian Zone to gain insights into the region’s crustal structure including the Moho. The GRANU-9501 profile is situated in the Thuringian-Franconian-Vogtland Slate Mountains. The east-west oriented MVE-90 crosses GRANU-9501 in the SW Vogtland almost perpendicularly.

The development of advanced seismic processing and imaging methods, as well as the increase in computational capacities enabled us to re-process these datasets to obtain an improved image of the crust and upper mantle in the area.

We applied Kirchhoff prestack depth migration as well as Fresnel-Volume-Migration approaches and compiled the results to a pseudo-3D image together with additional geophysical and geological information.

The results came recently into focus as profiles GRANU-9501 and MVE-90 cross the hidden Schönbrunn/Eichigt granite complex. This pluton is the investigation area of the project E4Geo, in which the principal aim is to get a better understanding of deep fault-bound hydrothermal systems related to this granite complex.

In this talk, we will present the seismic images obtained from re-processing compared to previous results as well the resulting geological interpretation and open questions.

Details

Author
Claudia Schimschal1, Stefan Schimschal2, Stefan Buske3
Institutionen
1Landesamt für Bergbau, Energie und Geologie (LBEG), Niedersachsen, Germany; 2Baker Hughes; 3TU Bergakademie Freiberg, Germany
Veranstaltung
GeoSaxonia 2024
Datum
2024
DOI
10.48380/v8y3-6s17
Geolocation
Vogtland