2
Physical Properties of Marine Sediments
40
Fig. 2.9 Model based computation of a wet bulk density log from resistivity measurements on ODP core 690C. (a)
Porosity log derived from formation factors having used Boyce’s (1968) values for (a) and (m) in Archie’s law. (b)
Carbonate content (O’Conell 1990). (c) Wet bulk density log analyzed from gamma ray attenuation measurements
onboard of JOIDES Resolution (gray curve). Superimposed is the wet bulk density log computed from electrical
resistivity measurements on archive halves of the core (black curve) having used the grain density model shown in
(d). Unpublished data from B. Laser and V. Spieß, University Bremen, Germany.
Physical Properties of Marine Sediments
40
Fig. 2.9 Model based computation of a wet bulk density log from resistivity measurements on ODP core 690C. (a)
Porosity log derived from formation factors having used Boyce’s (1968) values for (a) and (m) in Archie’s law. (b)
Carbonate content (O’Conell 1990). (c) Wet bulk density log analyzed from gamma ray attenuation measurements
onboard of JOIDES Resolution (gray curve). Superimposed is the wet bulk density log computed from electrical
resistivity measurements on archive halves of the core (black curve) having used the grain density model shown in
(d). Unpublished data from B. Laser and V. Spieß, University Bremen, Germany.