IODP Expedition 309/312: Superfast Spreading Rate Crust 2 and Superfast Spreading Rate Crust 3
Figure 3

Logging operations at Hole 1256D during Expeditions 309 and 312. Depths are shown in meters below seafloor (mbsf). HNGS = Hostile Environmental Gamma Ray Sonde, APS = Accelerator Porosity Sonde, HLDS = Hostile Environmental Lithodensity Sonde, DLL = Dual LateroLog, TAP = Temperature-Acceleration-Pressure tool, SGT = Scintillation Gamma Ray Tool, DSI = Dipole Sonic Imager, GPIT = General Purpose Inclinometer Tool, FMS = Formation MicroScanner, UBI = Ultra Sonic Borehole Imager, VSI = Versatile Seismic Imager, EMS = Environmental Mechanical Sonde.