Quantitative sequence stratigraphy applied to the Barremian–lower Aptian Urgonian carbonates deposited in Provence (southeastern France)
Year: 2025
Type: article
Abstract: ABSTRACT Sequence stratigraphy is an essential tool for interpreting and predicting carbonate sedimentary systems architecture. The study explores an advanced quantitative stratigraphy method, which offers a new perspective compared to traditional sequence stratigraphy. The method is based on the correlation of increasing or decreasing trends of apparent accommodation calculated across sedimentary sections within a basin, supplemented by a new criterion: the bathymetry-to-thickness ratio to constrain the correlation and to replicate the stratigraphic architectures. This method has been applied to the Barremian–lower Aptian (Lower Cretaceous) Urgonian carbonate platform in Provence (southern France). Twelve major stratigraphic markers have been identified and correlated throughout the platform. Four major positive and negative apparent accommodation events were identified and correlated throughout the sedimentary profile, while eight minor events are locally highlighted. Major negative events were recognized specifically in outer-shelf domains and correlated with subaerially exposed units in shallower inner environments. Positive accommodation events are recorded in almost all locations of the carbonate sedimentary system. These findings provide a high-resolution, quantified stratigraphic framework, allowing us to assess the influence of tectonics and sea-level fluctuations on accommodation. This innovative approach offers robust tools to test scenarios of stratigraphic evolution and refine our understanding of carbonate platform dynamics.
Source: AAPG Bulletin
DOI: 10.1306/03182523084
Language: English
Subfield: Earth-Surface Processes
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Climate action
Open Access status: hybrid
OpenAlex ID: W4414325333