Rates of sediment accumulation and particle reworking based on radiochemical measurements from continental shelf deposits in the East China Sea

A comparative study of the flux and fate of the Mississippi and Yangtze river sediments

“…Based on 210 Pb data (DeMaster et al, 1985;Alexander et al, 1991;Huh & Su, 1999;Liu et al, 2006Liu et al, , 2007, 100-year time scale sediment accumulation rates generally exceed 1 cm/year near the river mouth, and decrease towards the Taiwan Strait. These 100-year time scale accumulation rates, however, are much smaller than 100-day time scale rates determined using the 234 Th method (4.4 cm/month in summer near the river mouth; DeMaster et al, 1985). These data suggest that delivery and transport of the Yangtze sediment are Fig.…”

Major sources of MeO/OH-BDEs in the East China Sea elucidated from their records and phytoplankton biomarkers

“…The ECS receives the discharge from the Yangtze River, and it's an important reservoir for sedimentary OM burial because of high river inputs and marine primary productivity. The sampling sites are located around the deposition center of the ECS, with stable sediment rates since the Holocene (DeMaster et al, 1985;Liu et al, 2007). Two sediment cores were collected in August 2009 during the summer cruise of CHOICE-C, using R/V DongFangHong2 of the Ocean University of China (OUC).…”

Polybrominated diphenyl ethers (PBDEs) in sediments of the coastal East China Sea: Occurrence, distribution and mass inventory

“…This loss of PBDEs could be attributed to the re-suspension, long-range transport and deposition of sediments from the north to the south in the coastal ECS since the lower brominated BDE congeners usually have larger aqueous solubility and smaller octanolewater partition coefficients (K OW ) (Tittlemier et al, 2002;Braekevelt et al, 2003). It has been reported that approximately 40% of the sediments discharged from the Yangtze River is deposited in the estuarine area north of 30 N; and the remaining 32% is believed to have been resuspended in the YRE and transported southward, accumulating in the inner ECS shelf in winter triggered by the East Asian Monsoon (DeMaster et al, 1985;Liu et al, 2007).…”

“…The corresponding sedimentary rate value of each site was used according to DeMaster et al (1985) and Liu et al (2006).…”