KIT | KIT-Bibliothek | Impressum | Datenschutz

3D crustal stress state of Germany according to a data-calibrated geomechanical model

Ahlers, S.; Henk, A.; Hergert, T.; Reiter, K.; Müller, B. 1; Röckel, L. ORCID iD icon 1; Heidbach, O.; Morawietz, S.; Scheck-Wenderoth, M.; Anikiev, D.
1 Institut für Angewandte Geowissenschaften (AGW), Karlsruher Institut für Technologie (KIT)

Abstract:

The contemporary stress state in the upper crust is of great interest for geotechnical applications and basic research alike. However, our knowledge of the crustal stress field from the data perspective is limited. For Germany basically two datasets are available: orientations of the maximum horizontal stress (S$_{Hmax}$) and the stress regime as part of the World Stress Map (WSM) database as well as a complementary compilation of stress magnitude data of Germany and adjacent regions. However, these datasets only provide pointwise, incomplete and heterogeneous information of the 3D stress tensor. Here, we present a geomechanical–numerical model that provides a continuous description of the contemporary 3D crustal stress state on a regional scale for Germany. The model covers an area of about 1000×1250 km$^{2}$ and extends to a depth of 100 km containing seven units, with specific material properties (density and elastic rock properties) and laterally varying thicknesses: a sedimentary unit, four different units of the upper crust, the lower crust and the lithospheric mantle. The model is calibrated by the two datasets to achieve a best-fit regarding the S$_{Hmax}$ orientations and the minimum horizontal stress magnitudes (S$_{Hmin}$). ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000137084
Veröffentlicht am 13.09.2021
Originalveröffentlichung
DOI: 10.5194/se-12-1777-2021
Scopus
Zitationen: 11
Web of Science
Zitationen: 12
Dimensions
Zitationen: 14
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1869-9510, 1869-9529
KITopen-ID: 1000137084
Erschienen in Solid Earth
Verlag Copernicus Publications
Band 12
Heft 8
Seiten 1777-1799
Vorab online veröffentlicht am 11.08.2021
Nachgewiesen in Dimensions
Scopus
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page