(Table 1) Age determination of sediment core MD01-2404, supplement to: Chang, Yuan-Pin; Chen, Min-Te; Yokoyama, Yusuke; Matsuzaki, Hiroyuki; Thompson, William G; Kao, Shuh-Ji; Kawahata, Hodaka (2009): Monsoon hydrography and productivity changes in the East China Sea during the past 100,000 years: Okinawa Trough evidence (MD012404). Paleoceanography, 24(3), PA3208

DOI

We analyzed the high-resolution foraminifer isotope records, total organic carbon (TOC), and opal content from an Okinawa Trough core MD012404 in order to estimate the monsoon hydrography and productivity changes in the East China Sea (ECS) of the tropical western Pacific over the past 100,000 years. The variability shown in the records on orbital time scales indicates that high TOC intervals coincide with the increases of boreal May-September insolation driven by precession cycles (~21 ka), implying a strong connection to the variations in monsoons. We also observed possibly nearly synchronous, millennial-scale changes of the ECS surface hydrography (mainly driven by salinity changes but also by temperature effects) and productivity coincident with monsoon events in the Hulu/Dongge stalagmite isotope records. We found that increased freshening and high productivity correlate with high monsoon intensity in interstadials. This study suggests that the millennial-scale changes in monsoon hydrography and productivity in the ECS are remarkable and persistent features over the past 100,000 years. Nineteen AMS 14C dated points were calibrated by using Fairbanks et al.'s (2005, doi:10.1016/j.quascirev.2005.04.007) function. The remaining seven points were graphic correlations based upon Martinson et al.'s (1987, doi:10.1016/0033-5894(87)90046-9) data set that tuned by orbital forcing.

Identifier
DOI https://doi.org/10.1594/PANGAEA.831672
Related Identifier https://doi.org/10.1029/2007PA001577
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.831672
Provenance
Creator Chang, Yuan-Pin; Chen, Min-Te; Yokoyama, Yusuke; Matsuzaki, Hiroyuki; Thompson, William G; Kao, Shuh-Ji; Kawahata, Hodaka
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2009
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 90 data points
Discipline Earth System Research
Spatial Coverage (125.812 LON, 26.647 LAT); East China Sea, Pacific Ocean