Table T18. Correlation of density, resistivity, and PEF peaks observed in the downhole logs to carbonate-cemented intervals in the cores, Site 1165.
|
Log depth
(peak) (mbsf)
|
PEF (peak)
|
Density
(peak)
|
Resistivity
(peak)
|
Gamma
(negative peak)
|
Core,
section,
interval
(cm)
|
Core depth
(mbsf) |
Description
|
|---|---|---|---|---|---|---|---|
| 188-1165B- | |||||||
| 650.8 | B | B | B | B | 73X-1, 25-33 | 646.05-646.13 | Carbonate-cemented greenish claystone |
| 188-1165C- | |||||||
| 687.9 | N | S | B | S | 3R-4, 65-105 | 686.89-687.29 | Claystone with sand grains, calcareous at top |
| 716.3 | N | S | S | B | 6R-3, 71-96 | 714.50-714.75 | Carbonate interval with sand grains and lonestones |
| 731.8 | B | B | S | S | 8R-1, 33-57 | 763.20-763.44 | Carbonate interval with sand grains and lonestones |
| 744.0 | N | S | S | S | 9R-3, 55-70 | 743.41-743.56 | Structureless coarser grained material (IRD) |
| 753.9 | N | S | B | S | 10R-3, 100-150 | 753.50-754.00 | Coarser grained material (IRD) |
| 800.0 | N | S | S | S | 14R-6, 105-150 | 796.55-797.00 | Small chert nodule |
| 805.0 | N | S | S | S | 15R-5, 30-35 | 803.90-803.95 | Small carbonate nodule and small chert nodule |
| 855.5 | S | B | B | S | 21R-1, 30-50 | 855.30-855.50 | Massive calcareous interval |
| 870.0 | N | S | S | N | 22R-2, 15-68 | 866.35-866.88 | Calcareous silt laminae |
| 883.1 | B | B | B | B | 23R-6, >85 | >882.65 | Massive calcareous interval >30 cm thick |
| 903.1 | N | B | B | B | 26R-3, >74 | >906.94 | Silt laminae with calcareous material |
| 918.4 | N | S | B | B | 27R-5, 0-20 | 918.80-919.00 | Lighter nodule, possibly calcified |
| 930.2 | S | S | S | S | 28R-5, >67 | >929.19 | Calcite-filled laminations |
| 960.9 | B | B | B | B | 32R-2, 35-50 | 962.45-962.60 | Calcite-rich laminations |
Notes: IRD = ice-rafted debris. PEF = photoelectric effect. B = big peak, N = no peak, S = small peak.