Degree of pollution for marine sediments

Fukue, Masaharu; Nakamura, Takaaki; Kato, Yoshihisa; Yamasaki, Satoko

doi:10.1016/s0013-7952(99)00026-5

Cited by 42 publications

(22 citation statements)

References 2 publications

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“…Thus it would seem that the calcium carbonate technique may be used for raw estimates of sedimentation rates. Taking a carbonate level which can be correlated with a tsunami that occurred in 1542 as well as the peak activity of 137 Cs in 1963-1965 as age references we obtained an average value for the calcium carbonate precipitation rate for the study area which is close to that given by Fukue et al (1996Fukue et al ( , 1999. Nevertheless our results suggest that the assumption of a single carbonate precipitation value may be too generic to be taken as valid for the calculation of sedimentation rates.…”

Section: Introductionsupporting

confidence: 51%

“…A geochronological alternative to the radiometric techniques, called the Carbonate Content Technique, has been proposed by Fukue et al (1996Fukue et al ( , 1999 and is based on the following equation:…”

Section: Introductionmentioning

confidence: 99%

“…

ABSTRACTIn this paper we evaluate the utilization of the sedimentation rate values obtained by the carbonate content technique (Fukue et al, 1996(Fukue et al, , 1999 Pbxs but do reveal a signiˆcant diŠerence from radiocarbon estimates. Nevertheless, no signiˆcant correlation was obtained in the comparisons between 137 Cs, 210 Pbxs and calcium carbonate.

…”

mentioning

confidence: 99%

See 2 more Smart Citations

Is there a Technique for the Determination of Sedimentation Rates based on Calcium Carbonate Content? A Comparative Study on the Southeastern Brazilian Shelf

Figueira

Tessler

Mahiques

et al. 2007

Soils and Foundations

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In this paper we evaluate the utilization of the sedimentation rate values obtained by the carbonate content technique (Fukue et al., 1996(Fukue et al., , 1999 Pbxs but do reveal a signiˆcant diŠerence from radiocarbon estimates. Nevertheless, no signiˆcant correlation was obtained in the comparisons between 137 Cs, 210 Pbxs and calcium carbonate. Thus it would seem that the calcium carbonate technique may be used for raw estimates of sedimentation rates. Taking a carbonate level which can be correlated with a tsunami that occurred in 1542 as well as the peak activity of 137 Cs in 1963-1965 as age references we obtained an average value for the calcium carbonate precipitation rate for the study area which is close to that given by Fukue et al. (1996Fukue et al. ( , 1999. Nevertheless our results suggest that the assumption of a single carbonate precipitation value may be too generic to be taken as valid for the calculation of sedimentation rates.

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Section: Introductionsupporting

confidence: 51%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Is there a Technique for the Determination of Sedimentation Rates based on Calcium Carbonate Content? A Comparative Study on the Southeastern Brazilian Shelf

Figueira

Tessler

Mahiques

et al. 2007

Soils and Foundations

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“…, Table 2) and a correspondingly high total P concentration (1897 mg kg −1 ), much higher than the average background P concentration for all the bay sediments in Japan is 452 mg kg −1 (Fukue et al, 1999). Phosphorus in the surface sediments was predominantly present as Fe-P, with minor contributions from ACa-P, E&L-P, and Or-P (Table 2).…”

Section: Estuary Pollution Characteristics and In-situ P Geochemistrymentioning

confidence: 96%

Phosphorus release from coastal sediments: Impacts of the oxidation-reduction potential and sulfide

Sheng

Yang

et al. 2016

Marine Pollution Bulletin

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The release of phosphorus (P) from benthic sediments can affect the P content, nutrient status and quality of overlying waters in coastal ecosystem. This study was carried out to investigate the influence of oxidation-reduction potential (ORP) and sulfide on P release from sediments in the coastal estuary of the Yuniao River, China. The results showed that ferric iron-bound P was the main P burial phase in the sediments. The P concentration in overlying water increased with ORP decrease and sulfide increase, displaying a significant linear correlation with the ORP and sulfide concentration. The results indicate that decreased ORP may elevate the zero equilibrium phosphorus concentration, enhancing the capability of P release. And increased sulfide may react or capture reactive iron in sediments, reducing the P adsorption capacity and accelerating P release. Therefore, the control of ORP and sulfide production is important in the sink/source conversion of P in coastal sediments.

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“…Since industrial revolution, tremendous amounts of the toxic pollutants have been discarded into coastal environment and sediments of bays and estuaries have huge sinks of heavy metals (Fukue et al, 1999;Turner, 2000;Billon et al, 2002;Fan et al, 2002;Wang et al, 2010).…”

Section: Introductionmentioning

confidence: 99%