Figure F5. Regional bathymetric map of the Hess Deep Rift showing key morphological features and locations of IODP Expedition 345 Site U1415 and ODP Sites 894 and 895. Swath data were gridded at between 50 and 150 m depending on the density of data coverage, with the smallest grid spacing in the center of Hess Deep. Data available from the Marine Geoscience Data System (www.marine-geo.org) from cruises aboard the R/V Thomas Washington in 1982 (PI: P. Lonsdale), 1985 (PI: Lonsdale), and 1992 (PI: L. Dorman), and aboard the R/V Melville in 2000 (PI: D. Fornari) and 2002 (PI: E. Klein) were combined with data collected during the JC-21 site survey cruise in 2008 (MacLeod et al., unpubl. data).
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