Database dump for this sample: |
| Top depth (cm) | 32.0 |
| Bottom depth (cm) | 33.0 |
| Lithology | Bioturbated mud. Moderate opal (around 10), TOC content (around 0.25 percent), and high water content (around 50 percent). Clasts absent. Moderate diatom abundance (0.5 * 10^9 valves/g). |
| Facies interpretation | Hemipelagic suspension settling. Bioturbation is the likely result of decrease sediment supply as the grounding line migrated away from the core site, allowing for the establishment of a benthos community (Domack et al., 1999; Hemer and Harris, 2003). The lack of outsized clasts is indicative of depostion beneath an ice shelf lacking basal debris (Domack et al., 1999, Hemer and Harris, 2003; Mckay et al., 2009). |
| Core sample comments | None |
| Carbon type | AIO |
| Analysis date | None |
| Chem lab | None |
| Analyst | None |
| Sample preparation method | None |
| AMS lab | Rafter Radiocarbon Lab |
| AMS date | None |
| Analysis ID | NZA37584 |
| Percent carbon | None |
| Fraction modern | None |
| δ13C (‰) | None |
| 14C age (yr) | 28870.0 |
| 14C age uncertainty (yr) | 230.0 |
| 14C comments | None |
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Calibration results: |
| Calibration curve | Marine20 |
| Reservoir correction (14C yr BP) (mean and st.dev. of all Antarctica calibration samples) (http://calib.org/marine/) | 1141 ± 179 |
| Calibration software | IOSACal (v.0.6.0) |
| Calibrated age 95.45 % HPD interval(s) (yr) | 31572.0 to 30392.0 cal yr BP |
| Calibrated age 68.2 % HPD interval(s) (yr) | 31262.0 to 30736.0 cal yr BP |
| 14C calibration plot | |
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