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Figure F9. A. Ursa Basin is located 200 km south of New Orleans, Louisiana (USA). B. Bathymetry in the Ursa region (m). Open circles = proposed IODP boreholes, solid circles = logging data are available, solid rectangles = geotechnical wells where whole core was taken and pressure was directly measured. "MARS" and "URSA" delineate locations of the tension leg platforms producing oil from these fields. The square grid and associated numbers delineate Mississippi Canyon lease blocks that are 3 miles x 3 miles (e.g., the Ursa TLP is in Block M.C. 809).