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AAPG Bulletin
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AAPG Bulletin; Year: 2020; Issue: May DOI: 10.1306/11111917396
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Figure 10. Stratigraphic correlation of apparent accommodation, calculated in three pseudowells, in a laterally continuous carbonate outcrop, Lower Cretaceous platform in Provence (La Nesque Canyon, southeastern France; location in Figure 2). (A) High-resolution stratigraphic section. (B) Correlation of bathymetry and apparent accommodation trends in different locations. Facies and environments of deposition correspond to the sedimentary profile in Figure 9. The real accommodation change (sea level and subsidence) is considered equal along the studied transect (6 km). Bathymetry uncertainty is minimized by several occurrences of unambiguous water–depth datum (exposure surfaces and beach rocks) and the lateral continuity of the strata. Thicker time lines correspond to the actual stratigraphic correlation of the apparent accommodation between the pseudowells. An overall increasing trend and several accommodation cycles are correlated between the three sections. The correlation is best in outer-platform and outer-shelf environments like in the stratigraphic forward model (Figures 6–8). It is possible to interpret that the one exposure surface in the inner platform is correlated to negative apparent accommodation in the outer-platform and outer-shelf domains.
Figure 10. Stratigraphic correlation of apparent accommodation, calculated in three pseudowells, in a laterally continuous carbonate outcrop, Lower Cretaceous platform in Provence (La Nesque Canyon, southeastern France; location in Figure 2). (A) High-resolution stratigraphic section. (B) Correlation of bathymetry and apparent accommodation trends in different locations. Facies and environments of deposition correspond to the sedimentary profile in Figure 9. The real accommodation change (sea level and subsidence) is considered equal along the studied transect (6 km). Bathymetry uncertainty is minimized by several occurrences of unambiguous water–depth datum (exposure surfaces and beach rocks) and the lateral continuity of the strata. Thicker time lines correspond to the actual stratigraphic correlation of the apparent accommodation between the pseudowells. An overall increasing trend and several accommodation cycles are correlated between the three sections. The correlation is best in outer-platform and outer-shelf environments like in the stratigraphic forward model (Figures 6–8). It is possible to interpret that the one exposure surface in the inner platform is correlated to negative apparent accommodation in the outer-platform and outer-shelf domains.