Lee, Kyung Eun; Slowey, Niall C; Herbert, Timothy D (2001): (Table 1) Age determination of sediment core PC17 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.846742, Supplement to: Lee, KE et al. (2001): Glacial sea surface temperatures in the subtropical North Pacific: A comparison of UK'37, d18O, and foraminiferal assemblage temperature estimates. Paleoceanography, 16(3), 268-279, https://doi.org/10.1029/1999PA000493
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Abstract:
We have investigated glacial-interglacial differences in sea surface temperature (SST) near Hawaii using two relatively high deposition rate, shallow-water piston cores collected near Oahu, Hawaii. Modern hydrographic data show that local surface water temperatures are broadly consistent with the regional pattern of SSTs in the southern subtropical North Pacific. Past SSTs were estimated on the basis of three independently measured parameters: (1) UK'37 values of alkenones, (2) d18O of Globigerinoides ruber, and (3) assemblages of planktonic foraminifera using the modern analog technique (MAT). The two cores yield similar SST records, and if differences in the ecology of foraminifera and coccolithophores are considered, the three different approaches to estimating SSTs yield consistent results. UK'37-based temperatures, which may represent winter values at this location, were ~2.5°C colder during the Last Glacial Maximum than today, which is consistent with the February MAT estimates. The d18O-based temperature estimates, likely biased toward summer temperatures, indicate that the glacial SSTs were at least 1°C cooler than today, which is comparable to the results of MAT August estimates.
Coverage:
Latitude: 21.358330 * Longitude: -158.190170
Minimum DEPTH, sediment/rock: 0.6505 m * Maximum DEPTH, sediment/rock: 4.1750 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Lee, Kyung Eun | Geocode | |
| 2 | Depth, top/min | Depth top | m | Lee, Kyung Eun | ||
| 3 | Depth, bottom/max | Depth bot | m | Lee, Kyung Eun | ||
| 4 | Age, dated material | Dated material | Lee, Kyung Eun | |||
| 5 | Laboratory code/label | Lab label | Lee, Kyung Eun | |||
| 6 | Age, dated | Age dated | ka | Lee, Kyung Eun | Age, 14C AMS | |
| 7 | Age, dated standard deviation | Age dated std dev | ± | Lee, Kyung Eun | Age, 14C AMS | |
| 8 | Calendar age | Cal age | ka BP | Lee, Kyung Eun | Age, 14C calibrated |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
42 data points
Data
| 1 Depth sed [m] | 2 Depth top [m] | 3 Depth bot [m] | 4 Dated material | 5 Lab label | 6 Age dated [ka] | 7 Age dated std dev [±] | 8 Cal age [ka BP] |
|---|---|---|---|---|---|---|---|
| 0.6505 | 0.635 | 0.666 | Globigerinoides ruber | OS-9407 | 4.62 | 0.040 | 4.22 |
| 2.8450 | 2.835 | 2.855 | Globigerinoides ruber | OS-9411 | 7.69 | 0.045 | 7.29 |
| 3.2500 | 3.235 | 3.265 | Globigerinoides ruber | OS-9409 | 9.04 | 0.045 | 8.64 |
| 3.4700 | 3.455 | 3.485 | Globigerinoides ruber | OS-9410 | 10.30 | 0.050 | 9.90 |
| 3.8300 | 3.810 | 3.850 | Globigerinoides ruber | OS-9406 | 22.00 | 0.100 | 21.60 |
| 4.1750 | 4.160 | 4.190 | Globigerinoides ruber | OS-9408 | 25.40 | 0.140 | 25.00 |