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3D Atlantic margin geophysical model

A complex 3D model was built incorporating all the information available from the interpretation of seismic data, borehole log data, gravity data and geological observation. The aim was to create a realistic heterogenous geological 3D model that would help in providing an overall assessment of the sub-basalt imaging problem through synthetic wave simulations.

Accurate 3-D synthetic seismic and non-seismic (gravity, magnetic and EM) data have been produced based on the model, and these data are to be used in developing strategies for data integration into a common methodology to overcome the sub-basalt imaging problem.

The complex and detailed model was designed based on information extracted from real data, to replicate the velocity distribution, the highly scattering internal basalt structure and the irregular flow interfaces. It was created obtaining and adapting the geological interfaces from the interpretation of seismic data and filling the layers between them statistically with information from borehole log data. The statistical information on both interfaces and layer velocity structure is needed to overcome the lack of a deterministic knowledge of small-scale heterogeneity.

Both the model and the data are available to the public.

Informations connexes

Reported by

Department of Geology, University College Dublin
4 Dublin
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