Table T10. Application, sampling interval, and vertical resolution of logging tools, Leg 197.
Tool string
Tool
Measurement
Sampling
interval
(cm)
Approximate
vertical
resolution
(cm)
Triple combination HNGS Spectral gamma ray 15 51

APS Porosity 5 and 15 43

HLDS/HLDT Bulk density 2.5 and 15 38/46

DLL Resistivity 15 61

TAP Temperature 1 per s NA


Tool acceleration 4 per s NA


Pressure 1 per s NA
Formation MicroScanner NGT Spectral gamma ray 15 46
(FMS)/sonic combination GPIT Tool orientation 0.25 and 15 NA

FMS Microresistivity 0.25 0.5

DSI Acoustic velocity 15 107

Notes: All tool and tool string names (except the TAP) are trademarks of Schlumberger. For additional information about tool physics and use consult ODP Logging Services at http://www.ldeo.columbia.edu/BRG/ODP. HNGS = hostile environment natural gamma ray sonde, APS = accelerator porosity sonde, HLDS = hostile environment lithodensity sonde, HLDR = hostile environment lithodensity logging tool, DLL = dual laterolog, TAP = temperature/acceleration/pressure tool, NGT = natural gamma ray spectrometry tool, GPIT = general purpose inclinometer tool, FMS = Formation MicroScanner, DSI = dipole sonic imager. NA = not applicable.