leg site hole well logging latitude longitude ocean ocean hemisphere sea physographic feature hard rock feature ta td re-entry site survey site termination crust equipment test heat flow in situ pore water hydraulic piston core variable length hpc pressure core barrel punch core extended core barrel water depth(m) total penetration(m) drilled penetration(m) cored penetration(m) number of cores recovered meters recovered percent recovery meters of hard rock cored number of hard rock cores meters of hard rock recovered depth to basememnt(m) oldest sediment sub-bottom depth oldest sediment depth below sealevel oldest sediment core number oldest sediment age oldest sediment lithology oldest sediment lithology composition oldest sediment source oldest sediment heterogeneity oldest sediment hardness oldest comp1 oldest comp2 hard rock descriptions and comments 64 478 YES 27.0968 -111.5075 PACIFIC NORTH GULF OF CALIFORNIA CHANNL 12/24/1978 12/28/1978 NO YES CHIEF SCIENTIST DECISION OCEANIC NO NO NO NO NO YES NO NO 1889 464 464 54 310 66 128 18 93 345.5 2235 40 NO AGE GIVEN NANNOFOSSIL MUDSTONE unk - 0000 unk - 0000 INTRUSIVE DOLERITE SILLS