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3D model of South Crete offshore area by seismic constrained gravity inversion
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Third EAGE Eastern Mediterranean Workshop, Dec 2021, Volume 2021, p.1 - 3
Abstract
The area South of Crete is considered an undrilled frontier area with important hydrocarbon potential. Geophysical data in the area is characterized by limited seismic profiles and shipborne gravity observations.
In the current work we firstly improved the gravity dataset by combining it with available global gravity field models, thus obtaining a complete map over the study area. After that we perform a Bayesian gravity inversion to compute a 3D model of the density variations in considered volume up to Moho. Within the inversion seismic profiles are used to properly constrain the results. Thicknesses of the main geological horizons (i.e. sedimentary layers and crust) have also been extracted from the results. The resulting 3D model and maps are supported by an estimate of their predicted accuracy.