Abstract
A three-dimensional crustal Seismic reflection experiment was conducted in the northwestern Canadian Arctic where two regional linear reflection profiles intersected. VibroSeis (trademark CONOCO, Inc.) units shot broadside into one line as they were moved to varying offsets along the perpendicular line. The data were gathered into CMP bins of two-, four- and eight-fold data, providing a test of data quality versus fold. The improvement in data quality from two- to eight-fold did not warrant the higher fold. Preliminary analysis of the two-fold, 100 m × 100 m binned data allows delineation of three primary reflecting surfaces at about 1.5, 3.0 and 5.5–7.5 s. These surfaces show different orientations and a somewhat different geometry than that determined from two crossing 2D lines alone.
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