scholarly journals Evidence for the offshore transport of terrestrial organic matter due to the rise of sea level: The case of the East China Sea Continental Shelf

2000 ◽  
Vol 27 (23) ◽  
pp. 3893-3896 ◽  
Author(s):  
Kazumasa Oguri ◽  
Eiji Matsumoto ◽  
Yoshiki Saito ◽  
Makio C. Honda ◽  
Naomi Harada ◽  
...  
Keyword(s):  
Organic Matter ◽  
Continental Shelf ◽  
Sea Level ◽  
East China Sea ◽  
East China ◽  
The East China Sea ◽  
Terrestrial Organic Matter ◽  
China Sea ◽  
Offshore Transport

Radiocarbon Dates from the East China Sea and Their Geological Implications

1985 ◽  
Vol 24 (2) ◽  
pp. 197-203 ◽  
Author(s):  
Chen Yijian ◽  
Peng Gui ◽  
Jiao Wengiang
Keyword(s):  
Continental Shelf ◽  
Sea Level ◽  
East China Sea ◽  
Solid Particles ◽  
East China ◽  
Sea Level Changes ◽  
The East China Sea ◽  
Radiocarbon Dates ◽  
China Sea ◽  
History Of

Radiocarbon analysis plays an important role in studying the Quaternary geologic history of the East China Sea. More than 200 14C dates have been published in various Chinese publications. The continental shelf of the East China Sea is one of the few large continental shelves in the world. Many low-lying flats and deltaic plains lie along the coast making it a favorable site for sea-level studies. Radiocarbon data from Neolithic sites, chenier ramparts, peaty deposits, and submarine sediments converge to suggest that oscillations of sea level have occurred: they also suggest that the lowest glacial sea levels probably occurred between 22,000 and 19,000 yr B.P. Calculation of the volume of the Yangtze River Delta, together with 14C dates, indicates that more than 89% of the solid particles carried by the river were deposited in the delta. Due to the sedimentary load, the crust beneath the delta has subsided isostatically and tilted seaward. Marine shells provide many acceptable 14C dates, but because they are easily transported, most samples from the continental shelf cannot be directly related to the history of sea-level changes.

scholarly journals Variability of the nutrient stream near Kuroshio's origin

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chen-Tung Arthur Chen ◽  
Ting-Hsuan Huang ◽  
Chi-Hsuan Wu ◽  
Haiyan Yang ◽  
Xinyu Guo
Keyword(s):  
Pacific Ocean ◽  
Continental Shelf ◽  
East China Sea ◽  
Kuroshio Extension ◽  
Subsurface Water ◽  
East China ◽  
The East China Sea ◽  
High Productivity ◽  
China Sea ◽  
The Kuroshio

AbstractThe Kuroshio—literally “the Black Stream”—is the most substantial current in the Pacific Ocean. It was called the Black Stream because this oligotrophic current is so nutrient-poor in its euphotic zone that the water appears black without the influence of phytoplankton and the associated, often colored dissolved organic matter. Yet, below the euphotic layer, nutrient concentrations increase with depth while current speed declines. Consequently, a core of maximum nutrient flux, the so-called nutrient stream, develops at a depth of roughly between 200 and 800 m. This poorly studied nutrient stream transports nutrients to and supports high productivity and fisheries on the East China Sea continental shelf; it also transports nutrients to and promotes increased productivity and fisheries in the Kuroshio Extension and the subarctic Pacific Ocean. Three modes of the Kuroshio nutrient stream are detected off SE Taiwan for the first time: one has a single-core; one has two cores that are apparently separated by the ridge at 120.6–122° E, and one has two cores that are separated by a southward flow above the ridge. More importantly, northward nutrient transports seem to have been increasing since 2015 as a result of a 30% increase in subsurface water transport, which began in 2013. Such a nutrient stream supports the Kuroshio's high productivity, such as on the East China Sea continental shelf and in the Kuroshio Extension SE of Japan.

scholarly journals Carbon and nitrogen isoscape of particulate organic matter in the East China Sea

2021 ◽  
pp. 102667
Author(s):  
Pei-Chi Ho ◽  
Noboru Okuda ◽  
Chih-Fu Yeh ◽  
Pei-Ling Wang ◽  
Gwo-Ching Gong ◽  
...  
Keyword(s):  
Organic Matter ◽  
East China Sea ◽  
Particulate Organic Matter ◽  
East China ◽  
The East China Sea ◽  
Carbon And Nitrogen ◽  
China Sea

scholarly journals Sea level implications from Late Quaternary/Holocene paleosols from the Oujiang Delta, China

Radiocarbon ◽  
2018 ◽  
Vol 61 (1) ◽  
pp. 83-99
Author(s):  
Daidu Fan ◽  
Shuai Shang ◽  
George Burr
Keyword(s):  
Sea Level ◽  
East China Sea ◽  
Late Quaternary ◽  
Sediment Cores ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
Mis 3 ◽  
Plant Matter ◽  
The Last Glacial

ABSTRACTWe describe two coastal paleosols recovered in sediment cores from the Oujiang Delta, Southeast China. These provide useful benchmarks for past sea level change on the East China Sea coast. Radiocarbon (14C) dates on charcoal and plant matter show that one formed during Marine Isotope Stage 3 (MIS 3) and was exposed for perhaps 20 ka, during the Last Glacial Maximum. The other formed in the Early Holocene and was briefly exposed, during a period of fluctuating sea level. Similar paleosols have been described from the Changjiang (Yangtze) Delta, and at many other sites from the East China Sea. The MIS 3 paleosol records a regional relative sea level of about –27 m at the end of MIS 3. While this value is consistent with other paleo sea level estimates for the East China Sea region, it is much higher than predicted by eustatic sea level estimates.

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