Salt Related Structural Styles in Block 10, Western Greece; Insights from New 3D Seismic Data

A new 3D seismic dataset from a recent campaign in the Block 10 concession in Western Greece provides new insights into the subsurface distribution of Triassic evaporites, the related geometries of salt structures and structural style. Integration of outcrop, sandbox modelling and seismic data helped improve the understanding of salt structures and the controlling factors on their formation. A series of structural templates were constructed, which were previously used as a guide to offshore 2D seismic interpretation and can now be applied to the new 3D seismic campaign. The salt structures form as a response to regional compression which coupled with erosion leads to salt exposure and the formation of diapirs. Several examples show that salt bodies are usually thin and surrounding strata tightly folded and an absence of extensive allochthonous bodies in this area. Correctly understanding subsurface salt distribution and structural styles helps define the geometries of potential traps and sealing units. Further processing of the data is expected to improve imaging of the evaporites.