Geodynamics of south-eastern part of the Central European Subsidence Zone

Title:

Geodynamics of south-eastern part of the Central European Subsidence Zone

Creator:

Grzempowski, Piotr, Badura, Janusz, Cacoń, Stefan, Kapłon, Jan, Rohm, Witold, and Przybylski, Bogusław

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:bf3702ce-f200-494d-a45f-cfde16895460
uuid:bf3702ce-f200-494d-a45f-cfde16895460
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, tektonika, geodynamika, geotectonics, geodynamics, Dolní Slezsko, Lower Silesia, geodynamic research, neotectonics, Odra Fault Zone, Central European Subsidence Zone, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Geodetic geodynamic studies were conducted in the Wrocław Plain, situated in the SE part of the Central European Subsidence Zone (CESZ). The boundaries of this plain coincide with the outline of the rhomboidal Cainozoic Wrocław Basin. This area has been chosen for detailed examination taking into account the results of previous geodynamic research, pointing to constant subsidence of the Wrocław region. Analysis of drainage network and changeable thicknesses of the Neogene an d Quaternary strata also indicates weak, although stable subsidence of the central part of the Silesian Lowland and relative, small-scale uplift of the Fore-Sudetic region situated in thes outh and an area placed north of the Odra River valley. The studies consisted in measuring elevation changes of benchmarks along lines of precise levelling during 1956-1999 period, establishing a GPS network points, as well as measuring and processing of GPS data acquired during 2008-2010 time span. Displacements of benchmarks of precise levelling lines point to block-type mobility of structures located in the SE part of the CESZ, while GPS measurements indicate deformations related to bending of the Cainozoic sedimentary cover underlain by metamorphic bedrock and Permo-Mesozoic strata. Three years of observations enable us to distinguish two zones typified by compressive deformations being coincident with subsiding areas. One of these zones strikes NW-SE and marks the CESZ axis, the second one, oriented NNW-SSE, fo llows the orientation of a deeply buried Carboniferous-Permian tectonic graben (the Eastern Fore-Sudetic Basin) and a much shallower trough filled with Cretaceous strata in the Opole region. Uplift typifies the Fore-Sudetic Block as well as areas situated close to Opole town and north of the Odra River valley., Piotr Grzempowski, Janusz Badura, Stefan Cacoń, Jan Kapłon, Witold Rohm and Bogusław Przybylski., and Obsahuje bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2012 Volume:9 | Number:3 (167)

Harvested from:

CDK

Metadata only:

false