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In the vicinity of DSDP Site 325, a detailed site survey shows a general northeast trend in topography and a buried fracture zone striking perpendicular to the topography. Four topographic highs are present in the northeast section of the survey area and may be related to the proposed fracture zone.The topography slopes gently to the northwest away from the Antarctic Peninsula and results from a decrease in sediment thickness to the northwest. The basement is relatively horizontal northeast of the fracture zone and rugged to the southwest. Magnetic lineations trend parallel to the topography, and displacement of the anomaly pattern indicates the presence of the fracture zone.

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