Sedimentary Basin Modeling and Microfossil-Based Correlation Approaches

Accurate stratigraphic correlation within sedimentary basins is essential for reconstructing depositional histories, evaluating hydrocarbon systems, and understanding long-term paleoenvironmental evolution. Traditional lithostratigraphic methods often encounter limitations in laterally heterogeneous successions, particularly in basins affected by rapid facies changes, structural deformation, or diagenetic overprinting. This study integrates sedimentary basin modeling with microfossil-based correlation techniques to enhance stratigraphic resolution and temporal accuracy. Basin modeling incorporates subsidence analysis, thermal maturation histories, sediment accumulation rates, and sequence stratigraphic frameworks to simulate basin evolution through time. These quantitative reconstructions provide a structural and thermal context for interpreting stratigraphic architecture. When combined with high-resolution microfossil data, including foraminifera, calcareous nannofossils, ostracods, and palynomorphs, basin models can be temporally constrained and correlated across structurally complex regions. Microfossil assemblages offer several advantages for correlation: rapid evolutionary turnover, wide geographic distribution, and environmental sensitivity. Biozonation schemes based on first and last appearance datums enable precise chronostratigraphic subdivision. In marine basins, planktonic foraminifera and nannofossils provide global correlation potential, while benthic foraminifera and ostracods contribute to paleoenvironmental interpretation. In marginal marine and continental settings, palynological assemblages bridge gaps where marine indicators are absent.