Table T6. Logging units defined by LWD data. (See table note.)
| Logging | Depth (m LSF) |
Description | Lithologic interpretation | |
|---|---|---|---|---|
| Unit | Subunit | |||
| I | 0–197.8 | Gamma ray increasing trend, high-frequency and high-amplitude fluctuation of gamma ray values. Gradual increasing trend of resistivity. Strong fluctuation of resistivity. | Sandy and muddy sediments | |
| II | 197.8–428.3 | Gradual increasing trend of gamma ray baseline. Occasional thick (5 m) low gamma ray layers. Constant resistivity baseline with frequent thick conductive zones. | Mudstone with thick sand | |
| III | A | 428.3–545.3 | High gamma ray baseline with thin (1 m) low gamma ray layers. Less variable and slight decreasing trend of resistivity. | Alternating beds of mudstone and sand (mud dominant) |
| B | 545.3–711.5 | High gamma ray baseline with large number of thin (1 m) low gamma ray layers. General decreasing and variable (repeated increasing) trend of resistivity. | Alternating beds of mudstone and sand (sand dominant) | |
| IV | 711.5–TD | Low gamma ray and low resistivity. | Sand | |
Note: LSF = LWD depth below seafloor. TD = total depth.
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