3D structural geological model of the Central South Wales Syncline, Great Britain

Cite as:

Chabab, Elena; Otto, Christopher; Kempka, Thomas (2021): 3D structural geological model of the Central South Wales Syncline, Great Britain. GFZ Data Services. https://doi.org/10.5880/GFZ.3.4.2021.002

Status

I N R E V I E W : Chabab, Elena; Otto, Christopher; Kempka, Thomas (2021): 3D structural geological model of the Central South Wales Syncline, Great Britain. GFZ Data Services. https://doi.org/10.5880/GFZ.3.4.2021.002

Abstract

South Wales is characterised by a rich variety of geologic formations and rocks of different ages and periods, and a large asymmetric syncline, as perhaps its most significant structural geological feature, extending from east to west over a length of approximately 96 km and 30 km from north to south, respectively. This oval-shaped syncline is part of the Variscan orogenic thrust and fold belt in Central Europe and covers some 2,700 km2, with coal-bearing rocks from the Upper Carboniferous (Westphalian Stage) deposited in the central syncline and older rocks outcropping in a peripheral belt around it. The coal-bearing sequence begins with Namurian grits and shales, overlain by the more productive Lower, Middle and Upper Coal Measures. A 3D structural geological model has been implemented for the central part of the South Wales Syncline and its bedrock geology. The oldest rocks in the model domain date back to the Pridoli Series from the uppermost Silurian, the youngest to the Westphalian Stage of the Upper Carboniferous. For model implementation, mainly open access data from the British Geological Survey (BGS) has been used.

The final 3D structural geological model covers the entire Central South Wales Syncline and is 32.8 km wide and 36.6 km long. In total, the 3D model includes 21 fault zones and the elevation depth of ten surfaces: (1) Top Upper Coal Measures Formation; (2) Top Middle Coal Measures Formation; (3) Top Lower Coal Measures Formation; (4) Top Millstone Grit Group; (5) Top Dinantian Rocks; (6) Top Upper Devonian Rocks; (7) Top Lower Devonian Rocks (sandstone dominated); (8) Top Lower Devonian Rocks (mudstone dominated); (9) Top Pridoli Rocks; (10) Top Ludlow Rocks (in parts).

Authors

Chabab, Elena;GFZ German Research Centre for Geosciences, Potsdam, Germany
Otto, Christopher;GFZ German Research Centre for Geosciences, Potsdam, Germany
Kempka, Thomas;GFZ German Research Centre for Geosciences, Potsdam, Germany;University of Potsdam, Institute of Geosciences, Potsdam, Germany

Contact

Chabab, Elena; GFZ German Research Centre for Geosciences, Potsdam, Germany;

Keywords

3D structural geological model, geology South Wales, South Wales Syncline, Central Europe, bedrock geology, fault zones, geologic cross sections, Carboniferous, Coal Measures, Westphalian, Millstone Grit Group, Dinantian Rocks, Devonian, Pridoli Rocks, Silurian, Ludlow Rocks, Variscan Orogeny, Variscan Foreland Basin, coal-bearing strata, Namurian grits, shales, sandstones, siltstones, fluvial sedimentation, marine sedimentation, elevation depth map, thickness map, LithoFrame Viewer, Geology of Britain Viewer, Phanerozoic > Mesozoic > Jurassic > Early/Lower Jurassic, Phanerozoic > Mesozoic > Triassic, Phanerozoic > Paleozoic > Carboniferous, Phanerozoic > Paleozoic > Devonian > Early/Lower Devonian, Phanerozoic > Paleozoic > Devonian > Late/Upper Devonian, Phanerozoic > Paleozoic > Permian, Phanerozoic > Paleozoic > Silurian > Pridoli

GCMD Science Keywords

EARTH SCIENCE SERVICES > MODELS > GEOLOGIC/TECTONIC/PALEOCLIMATE MODELS

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  - publicationYear: 2021
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    - subject: South Wales Syncline
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    - subject: bedrock geology
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    - subject: Carboniferous
    - subject: Coal Measures
    - subject: Westphalian
    - subject: Millstone Grit Group
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    - subject: Devonian
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    - subject (subjectScheme=International Chronostratigraphic Chart (2014)): Phanerozoic > Paleozoic > Silurian > Pridoli
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