Seismotectonics and lithospheric stresses in the northern Fennoscandian shield

• Main Authors: Wahlström, R., Assinovskaya, B.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 1998
• Subjects: 550 - Earth sciences; Fennoscandia; Fennoscandian
• Online Access: https://gfzpublic.gfz-potsdam.de/pubman/item/item_232478

The seismicity, fault distribution and stress pattern of northern Fennoscandia are investigated. Some active fault zones are suggested, eg several faults exposed to large displacement at the late-glacial phase about 9000 yr ago. Stress orientations, derived from crack distribution and a few earthquake focal-mechanism solutions, are different in different areas. In some cases there is a good agreement with expectations from ridge-push generated and propagated compressive stress. Hoever, the inhomogeneity in the stress field of the region as a whole indicates contribution from local factors.