Sun, Youbin; Oppo, Delia W; Xiang, Rong; Liu, Weiguo; Gao, Shu (2005): (Table 1) Age determination of sediment core A-7 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.835320, Supplement to: Sun, Y et al. (2005): Last deglaciation in the Okinawa Trough: Subtropical northwest Pacific link to Northern Hemisphere and tropical climate. Paleoceanography, 20(4), PA4005, https://doi.org/10.1029/2004PA001061
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Published: 2005 (exact date unknown) • DOI registered: 2014-09-24
Abstract:
Detailed deglacial and Holocene records of planktonic d18O and Mg/Ca-based sea surface temperature (SST) from the Okinawa Trough suggest that at ~18 to 17 thousand years before present (kyr B.P.), late spring/early summer SSTs were approximately 3°C cooler than today, while surface waters were up to 1 practical salinity unit saltier. These conditions are consistent with a weaker influence of the summer East Asian Monsoon (EAM) than today. The timing of suborbital SST oscillations suggests a close link with abrupt changes in the EAM and North Atlantic climate. A tropical influence, however, may have resulted in subtle decoupling between the North Atlantic and the Okinawa Trough/EAM during the deglaciation. Okinawa Trough surface water trends in the Holocene are consistent with model simulations of an inland shift of intense EAM precipitation during the middle Holocene. Millennial-scale alternations between relatively warm, salty conditions and relatively cold, fresh conditions suggest varying influence of the Kuroshio during the Holocene.
Coverage:
Latitude: 27.820000 * Longitude: 126.980000
Minimum DEPTH, sediment/rock: 0.04 m * Maximum DEPTH, sediment/rock: 4.44 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Laboratory code/label | Lab label | Sun, Youbin | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Depth, top/min | Depth top | m | Sun, Youbin | ||
| 4 | Depth, bottom/max | Depth bot | m | Sun, Youbin | ||
| 5 | Age, dated | Age dated | ka | Sun, Youbin | Age, 14C AMS | |
| 6 | Age, dated, standard deviation | Age dated std dev | ± | Sun, Youbin | Age, 14C AMS | |
| 7 | Calendar age | Cal age | ka BP | Sun, Youbin | Age, 14C milieu/reservoir corrected (-400 yr) | Age 1 |
| 8 | Age, minimum/young | Age min | ka | Sun, Youbin | Age, 14C milieu/reservoir corrected (-400 yr) | Age 1, 2 sigma error |
| 9 | Age, maximum/old | Age max | ka | Sun, Youbin | Age, 14C milieu/reservoir corrected (-400 yr) | Age 1, 2 sigma error |
| 10 | Calendar age | Cal age | ka BP | Sun, Youbin | Age, 14C milieu/reservoir corrected (-700 yr) | Age 2 |
| 11 | Age, minimum/young | Age min | ka | Sun, Youbin | Age, 14C milieu/reservoir corrected (-700 yr) | Age 2, 2 sigma error |
| 12 | Age, maximum/old | Age max | ka | Sun, Youbin | Age, 14C milieu/reservoir corrected (-700 yr) | Age 2, 2 sigma error |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
165 data points
Data
| 1 Lab label | 2 Depth sed [m] | 3 Depth top [m] | 4 Depth bot [m] | 5 Age dated [ka] (Age, 14C AMS) | 6 Age dated std dev [±] (Age, 14C AMS) | 7 Cal age [ka BP] (Age 1, Age, 14C milieu/reserv...) | 8 Age min [ka] (Age 1, 2 sigma error, Age, 14...) | 9 Age max [ka] (Age 1, 2 sigma error, Age, 14...) | 10 Cal age [ka BP] (Age 2, Age, 14C milieu/reserv...) | 11 Age min [ka] (Age 2, 2 sigma error, Age, 14...) | 12 Age max [ka] (Age 2, 2 sigma error, Age, 14...) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| OS-45820 | 0.04 | 0.02 | 0.06 | 1.91 | 0.030 | 1.00 | 1.366 | 1.536 | 1.00 | 1.083 | 1.255 |
| OS-39785 | 0.34 | 0.32 | 0.36 | 2.89 | 0.035 | 3.00 | 2.528 | 2.744 | 2.00 | 2.151 | 2.338 |
| OS-45821 | 0.66 | 0.64 | 0.68 | 4.80 | 0.035 | 5.00 | 4.951 | 5.243 | 5.00 | 4.575 | 4.808 |
| OS-39786 | 0.96 | 0.94 | 0.98 | 6.86 | 0.045 | 7.00 | 7.275 | 7.461 | 7.00 | 6.948 | 7.199 |
| OS-39858 | 1.21 | 1.20 | 1.22 | 8.42 | 0.045 | 9.00 | 8.905 | 9.198 | 9.00 | 8.452 | 8.743 |
| OS-39859 | 1.45 | 1.44 | 1.46 | 9.03 | 0.065 | 10.00 | 9.524 | 9.955 | 9.00 | 9.254 | 9.519 |
| OS-39860 | 1.75 | 1.74 | 1.76 | 10.50 | 0.060 | 12.00 | 11.354 | 11.927 | 11.00 | 11.105 | 11.304 |
| OS-39861 | 2.05 | 2.04 | 2.06 | 10.80 | 0.065 | 12.00 | 12.009 | 12.625 | 12.00 | 11.341 | 11.935 |
| OS-45822 | 2.24 | 2.22 | 2.26 | 10.85 | 0.045 | 12.35 | 12.116 | 12.639 | 11.90 | 11.412 | 11.994 |
| OS-39862 | 2.59 | 2.58 | 2.60 | 11.45 | 0.070 | 12.94 | 12.870 | 13.096 | 12.80 | 12.662 | 12.874 |
| OS-45823 | 2.88 | 2.86 | 2.90 | 12.20 | 0.050 | 13.68 | 13.483 | 13.776 | 13.32 | 13.242 | 13.436 |
| OS-39863 | 3.22 | 3.20 | 3.24 | 12.85 | 0.060 | 14.40 | 14.176 | 14.886 | 14.00 | 13.838 | 14.142 |
| OS-45824 | 3.48 | 3.46 | 3.50 | 13.30 | 0.055 | 15.20 | 14.981 | 15.515 | 14.88 | 14.459 | 15.120 |
| OS-39864 | 3.72 | 3.70 | 3.74 | 13.65 | 0.075 | 15.68 | 15.322 | 16.107 | 15.26 | 15.003 | 15.627 |
| OS-39865 | 4.44 | 4.42 | 4.46 | 15.20 | 0.090 | 18.00 | 17.569 | 18.525 | 17.55 | 16.956 | 17.902 |