Seismic Attenuation in Faroe Island Basalts

P502 Seismic attenuation in Faroe Island basalts Introduction 1 F.SHAW 1` M.H.WORTHINGTON 1 R.S.WHITE 2 M.S.ANDERSEN 3 U.K. PETERSEN 4 and SEIFABA GROUP Basaltic rocks are often seismically opaque but the mechanisms of attenuation are not well understood. The Faroe Islands has three outcropping basalt formations (Lower Middle and Upper Series) and is thus an ideal laboratory for comparing geological facies borehole data and seismic data. Vertical seismic profiling (VSP) experiments were conducted in boreholes at Glyvursnes (intersecting Upper and Middle Series Basalts) and Vestmanna (intersecting Middle and Lower Series Basalts) in 2003/2004 as part of the ongoing SeiFaBa project