The East Pacific Rise - EPR

A unique high-resolution 3D multichannel seismic dataset To add the third dimension to the crustal characterization and better understand bio-geological processes that operate within the EPR 9º50’N area, the first academic multi-streamer (four 6 km long), multi-source (two air-gun strings) and multichannel (468) 3D seismic reflection survey was conducted in 2008. The data were collected as a collaboration between researchers from the following institutions: Lamont-Doherty Earth Observatory, Woods Hole Oceanographic Institution and Dalhousie University

The survey resulted in 3D seismic box - suitable for proper 3D migration, with a strong data signal recorded within 5-80 Hz frequency range. 3D information on the upper crustal structure imbedded in this dataset is largely unexploited. Here, the 3DWISE project proposes to use this state-of-the-art 3D dataset for examining the characteristics of the upper crust centered at 9º50’N.

The existing, prolific time-series measurements available for this area (geochemistry, biology, earthquake monitoring, seafloor mapping, etc.) will enable inter-/multidisciplinary approach when interpreting the results. Seismic data processing will be done using Paradigm’s seismic processing products.