Hendy, Ingrid L; Kennett, James P (2000): (Table 1) Radiocarbon ages of ODP Hole 146-893A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855397, Supplement to: Hendy, IL; Kennett, JP (2000): Dansgaard-Oeschger Cycles and the California Current System: Planktonic foraminiferal response to rapid climate change in Santa Barbara Basin, Ocean Drilling Program Hole 893A. Paleoceanography, 15(1), 30-42, https://doi.org/10.1029/1999PA000413
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Abstract:
High-resolution planktonic foraminiferal census data from Santa Barbara Basin (Ocean Drilling Program hole 893A) demonstrate major assemblage switches between 25 and 60 ka that were associated with Dansgaard-Oeschger cycles. Stadials dominated by Neogloboquadrina pachyderma (sinistral), and Globigerinoides glutinata suggest a strong subpolar California Current influence, while interstadials marked by abundant N. pachyderma (dextral) and G. bulloides indicate a relative increase in subtropical countercurrent influence. Modern analog technique and transfer function (F-20RSC) temperature reconstructions support d18O evidence of large rapid (70 years or less) sea surface temperature shifts (3° to 5°C) between stadials and interstadials. Changes in the vertical temperature gradient and water column structure (thermocline depth) are recorded by planktonic faunal oscillations suggest bimodal stability in the organization of North Pacific surface ocean circulation. Santa Barbara Basin surface water demonstrates the rapid response of the California Current System to reorganization of North Pacific atmospheric circulation during rapid climate change.
Related to:
Ingram, B Lynn; Kennett, James P (1995): Radiocarbon chronology and planktonic-benthic foraminiferal 14C age differences in Santa Barbara Basin sediments, Hole 893A. In: Kennett, JP; Baldauf, JG; Lyle, M (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 146(2), 19-27, https://doi.org/10.2973/odp.proc.sr.146-2.278.1995
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 34.287500 * Longitude: -120.036000
Date/Time Start: 1992-11-20T10:30:00 * Date/Time End: 1992-11-20T23:40:00
Minimum DEPTH, sediment/rock: 3.65 m * Maximum DEPTH, sediment/rock: 43.57 m
Event(s):
146-893A * Latitude: 34.287500 * Longitude: -120.036000 * Date/Time Start: 1992-11-20T10:30:00 * Date/Time End: 1992-11-20T23:40:00 * Elevation: -588.0 m * Penetration: 196.5 m * Recovery: 204.91 m * Location: North Pacific Ocean * Campaign: Leg146 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 core; 196.5 m cored; 0 m drilled; 104.3 % recovery
Comment:
Sample data were taken from Ingram and Kennet (1995).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Hendy, Ingrid L | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Hendy, Ingrid L | Geocode | |
| 3 | Age, dated | Age dated | ka | Hendy, Ingrid L | Age, 14C AMS | |
| 4 | Age, dated | Age dated | ka | Hendy, Ingrid L | Age, reservoir corrected (Stuiver & Braziunas, 1993) | |
| 5 | Age, dated | Age dated | ka | Hendy, Ingrid L | Age, reservoir corrected (Bard, 1988) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
52 data points
Data
| 1 Sample label (DSDP/ODP/IODP sample designation) | 2 Depth sed [m] | 3 Age dated [ka] (Age, 14C AMS) | 4 Age dated [ka] (Age, reservoir corrected (Stu...) | 5 Age dated [ka] (Age, reservoir corrected (Bar...) |
|---|---|---|---|---|
| 146-893A-1H-3,63-66 | 3.65 | 2.520 | 1.67 | |
| 146-893A-1H-4,117-120 | 5.68 | 3.555 | 2.78 | |
| 146-893A-2H-2,71-74 | 8.88 | 6.200 | 6.19 | |
| 146-893A-2H-4,105-107 | 11.75 | 8.235 | 8.23 | |
| 146-893A-2H-6,55-57 | 14.02 | 9.180 | 9.40 | |
| 146-893A-3H-1,87-90 | 16.82 | 10.280 | 10.79 | 10.812 |
| 146-893A-3H-2,11-14 | 17.55 | 10.720 | 11.374 | |
| 146-893A-3H-2,113-115 | 18.56 | 11.180 | 11.959 | |
| 146-893A-3H-3,112-115 | 20.01 | 11.830 | 12.781 | |
| 146-893A-3H-3,147-150 | 20.38 | 11.980 | 12.971 | |
| 146-893A-3H-5,9-12 | 20.92 | 12.350 | 13.436 | |
| 146-893A-3H-6,96-99 | 24.09 | 13.130 | 14.411 | |
| 146-893A-4H-1,8-11 | 25.88 | 14.630 | 16.267 | |
| 146-893A-4H-3,57-60 | 29.10 | 15.720 | 17.599 | |
| 146-893A-4H-4,3-5 | 29.99 | 16.260 | 18.254 | |
| 146-893A-4H-5,73-76 | 31.94 | 18.380 | 20.792 | |
| 146-893A-5H-7,11-14 | 43.57 | 25.470 | 28.896 |