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