Factors affecting spring bloom in the South of Cheju Island in the East China Sea

Fu, Dongyang; Huang, Zhaojun; Zhang, Yuanzhi; Pan, Delu; Ding, Youzhua; Liu, Dazhao; Zhang, Ying; Mao, Zhihua; Chen, Jianfang

doi:10.1007/s13131-015-0633-8

Cited by 4 publications

(1 citation statement)

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“…In offshore and deeper water settings, relatively high ∆ 14 C org values suggest translocation of sediments to distal regions of the CMS by other processes (e.g., near-surface transport; Milliman et al, 1985;Chen, 2009) or direct supply from overlying waters. With respect to the latter, the muddy area southwest of by observations of higher chlorophyll-a concentrations in surface waters (Fu, et al, 2015) and higher d 13 C values of underlying sediments (data not shown).…”

Section: Discussionmentioning

confidence: 85%

Widespread dispersal and aging of organic carbon in shallow marginal seas

Bao

McIntyre

Zhao

et al. 2016

Geology

135

144

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The occurrence of "pre-aged" organic carbon (OC) in continental margin surface sediments is a commonly observed phenomenon, yet the nature, sources, and causes of this aged OC remain largely undetermined for many continental shelf settings. Here, we present the results of an extensive survey of the abundance and radiocarbon content of OC in surface sediments from the northern Chinese marginal seas. Pre-aged OC is associated with both coarser (>63 µm) and finer (<63 µm) sedimentary components, with measurements on specific grain size fractions revealing that it is especially prevalent Page 2 of 17 within the 20-63 µm fraction of inner shelf sediments. We suggest that organic matter associated with this "sortable silt" fraction is subject to protracted entrainment in resuspension-deposition loops during which it ages, is modified, and is laterally dispersed, most likely via entrainment within benthic nepheloid layers. This finding highlights the complex dynamics and pre-depositional history of organic matter accumulating in continental shelf sediments, with implications for our understanding of carbon cycling on continental shelves, development of regional carbon budgets, and interpretation of sedimentary records.

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Section: Discussionmentioning

confidence: 85%