Abstract
Forward and reverse modelling of structure and stratigraphy have been used to investigate the syn-rift (Devonian) and early post-rift (Carboniferous) evolution of the northwestern Dniepr-Donets Basin, Modelling shows that basin formation is consistent with Frasnian-Famennian rifting followed by post-rift subsidence starting in the early Tournaisian. Forward syn-rift modelling, using the flexural cantilever model of rift basin formation, satisfactorily models the observed syn-rift stratigraphic thicknesses and structure within the basin using total syn-rift extension of approximately 15 km in the region studied with a maximum beta stretching factor of 1.3. Forward structural and stratigraphic modelling suggests that the Devonian rifting, which formed the northwestern Dniepr-Donets Basin, was accompanied by regional uplift of the order of 300 m. Both forward and reverse (flexural backstripping) modelling of post-rift stratigraphy through the Carboniferous suggest that post-rift thermal subsidence, which commenced in the Tournaisian following Devonian rifting, was augmented by additional regional subsidence of the order of 300 m in middle Carboniferous times. Ir is suggested that this transient regional uplift event, which accompanied rifting and decayed in middle Carboniferous times, was generated by a mantle plume.
| Original language | English |
|---|---|
| Pages (from-to) | 237-255 |
| Number of pages | 19 |
| Journal | Tectonophysics |
| Volume | 268 |
| Issue number | 1-4 |
| Publication status | Published - 31 Dec 1996 |
Keywords
- Dniepr-Donets Basin
- rifting
- basin modelling
- mantle plume
- East European Platform
- NORTH-SEA BASIN
- SUBSIDENCE
- GENERATION
- EXTENSION
- UPLIFT