Fróðskaparrit - 01.01.1996, Page 117

IMAGING OF BASALT AND UNDERLYING STRUCTURES IN THE FAROESE OFFSHORE AREA ] 2 1
Figure 1. Major Features ofthe area with profile locations shown.
Methods and Data Base
During 1994 and 1995, Western Geophysi-
cal Corporation acquired approximately
12,000 km of non-exclusive seismic data
within Faroese waters. Prior to this acquisi-
tion, the only data available was, again,
Western Geophysical non-exclusive data,
but acquired using the techniques current at
the time but unfortunately not particularly
suited to penetrating the Faroese basalt lay-
er.
The 1994 and 1995 surveys utilized state
of the art acquisition techniques and was
designed in particular to maximize band-
width, signal to noise ratio and signal pene-
tration and resolution at depth.
The seismic data processing flow was
designed to optimize the acquisition para-
meters and targeted to minimize multiple
attenuation effects. All data was processed
to the full acquisition two way travel time
of 8 seconds. All seismic data shown is
courtesy of Western Geophysical; the inter-
pretation is the Authors’ own.
During 1995, World Geoscience Gorpo-
ration conducted a non-exclusive SAM
(Sedimentary Airborne Magnetometer)
Survey over the Faroese area. 42,000 line
km of data were collected; to the east of the
Islands flight line spacing was 1.5 km, and