On some offshore seismic refraction profiles in the cook strait, Tasman Bay, and Golden Bay areas of New Zealand

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Abstract
Marine seismic profiles show that the thickness of unconsolidated sediments varies from a few hundred feet in the Cook Strait to Golden Bay areas to 2,300 ft in the vicinity of Marlborough Sounds. The Tertiary geosynclinal sediments of N.W. Nelson thicken northwards beneath Golden Bay. The maximum recorded velocities are consistent with the basement rock mapped in neighbouring land areas.