| Title | Shallow geophysical characterization and fluid flow processes in two large pockmarks on the Malin Shelf, NW Ireland |
| Publication Type | Conference Paper |
| Year of Publication | 2009 |
| Authors | Monteys X., Garcia X., Evans R., Szpak M., Kelleher B., Hardy D. |
| Conference Name | Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics |
| Publisher | European Association of Geoscientists and Engineers, EAGE |
| ISBN Number | 9073781728 |
| Abstract | Shallow geophysical datasets and ground-truthing have been used in this research to characterize in detail two large gas related depressions in a recently discovered pockmark field on the Malin Shelf, northwest Ireland. Pockmarks are aligned to the main deep fault of the region, the SW-NE Skerryvore Fault. High resolution multibeam bathymetry and backscatter reveal the surface morphology of these seabed features to the meter scale. They appear as subcircular depressions and present several units within a generally smooth seabed. Shallow seismic and single-beam echosounder records reveal evidence of gas related activity within the subsurface strata. Electromagnetic results present a number of anomalies in conductivity associated with inhomogenities in the upper strata. These anomalies consist in a decrease in conductivity and in general, correlate well with acoustic anomalies. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84912149526&partnerID=tZOtx3y1 |
