Sedimentation rates in Bera Lake (Peninsular Malaysia) using 210Pb and 137Cs radioisotopes

Abstract The constant rate of supply (CRS) of excess 210Pb model was successfully applied to assess 210Pb data of two sediment cores from the lake Qattinah, Syria. Gamma spectrometry was used to determine 137Cs and 210Pb activity concentrations. The bottom of the cores was 210Pb-dated to years 1907 and 1893. The accumulation rates were determined using 210Pb method and found to vary similarly in both cores from 0.10 ± 0.01 to 3.78 ± 0.57 kg m−2 y−1 during the past century. 137Cs was used as an in-dependent chronometer. The two distinct peaks observed on the 137Cs record of both cores, corresponding to 1965 and 1986, have allowed a successful validation of the CRS model.

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A sedimentation study of St. Ana Lake (Romania) applying the 210Pb and 137Cs dating methods

Geochronometria ◽

10.2478/s13386-011-0017-6 ◽

2011 ◽

Vol 38 (2) ◽

pp. 93-100 ◽

Cited By ~ 9

Author(s):

Robert Begy ◽

Alida Timar-Gabor ◽

Janos Somlai ◽

Constantin Cosma

Keyword(s):

Sedimentation Rates ◽

210Pb And 137Cs ◽

137Cs Dating ◽

210Po Activity ◽

210Pb Activity ◽

Dating Methods ◽

Calculated Mass ◽

Dating Method ◽

High Resolution Gamma Spectrometry ◽

Good Agreement

AbstractThe biggest problem with most lakes that have no contact with other water sources and are being charged by precipitation is the massive eutrophication. The aim of this work was to determine the sedimentation rate in order to evaluate the progress of eutrophication for St. Ana Lake (Ciomad Mountain near the Băile Tuşnad in Harghita County (Romania)). The concentration of 210Pb was determined by means of high resolution gamma spectrometry as well as derived from 210Po activity which was measured through alpha spectrometry; values obtained are in good agreement. For the excess 210Pb activity values between 4.0±0.5 Bq/kg and 218±20 Bq/kg have been found. As an alternative method, the 137Cs dating method was applied as well. Calculated mass sedimentation rates are in the range of 0.06±0.01 to 0.32±0.05 g/cm2 year with a mean of value of 0.15±0.02 g/cm2 year. Linear sedimentation rates yielded much higher sedimentation values (between 0.5±0.1 and 7.9±0.7 cm/year with a mean of 2.4±0.6 cm/year), due to the predominant organic matter composition and the long suspension time of the sediment. This is an indication for the process of eutrophication which will probably lead to the transformation of the lake into a peat bog.

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Sedimentation Rates in Different Facies–Genetic Types of Bottom Sediments in the Kara Sea: Evidence from the 210Pb and 137Cs Radionuclides

Geochemistry International ◽

10.1134/s0016702919110077 ◽

2019 ◽

Vol 57 (11) ◽

pp. 1185-1200

Author(s):

V. Yu. Rusakov ◽

A. P. Borisov ◽

G. Yu. Solovieva

Keyword(s):

Bottom Sediments ◽

Kara Sea ◽

Sedimentation Rates ◽

210Pb And 137Cs ◽

Genetic Types

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Recent sedimentation rates using 210Pb and 137Cs vertical profiles of core sediments at the Gulf of Corinth, Litochoro Coast and Marmara Sea

HNPS Proceedings ◽

10.12681/hnps.2521 ◽

2020 ◽

Vol 19 ◽

pp. 92 ◽

Cited By ~ 1

Author(s):

D. Papageorgiou ◽

G. Eleftheriou ◽

D. L. Patiris ◽

D. Sakellariou ◽

C. Tsabaris ◽

...

Keyword(s):

Sedimentation Rate ◽

Hpge Detector ◽

Marmara Sea ◽

Sedimentation Rates ◽

Vertical Profiles ◽

Core Sediment ◽

Corinth Gulf ◽

210Pb And 137Cs ◽

Gulf Of Corinth ◽

The Vertical Distribution

In this work, core sediment samples up to 50 cm have been collected from three different marine environments; Gulf of Corinth, Gulf of Thermaikos, specifically from Litochoro Coast and Lake Uluabat from the wider region of Black Sea. Natural (210Pb) and anthropogenic (137Cs) radionuclides in the samples were measured using an HPGe detector, calibrated for sediments geometry. The vertical distribution of 137Cs and 210Pb was used to determine the sedimentation rate. The results were 0.56 cm/year for the Gulf of Corinth and 0.54 cm/year for the coast of Litochoro. In the case of the lake Uluabat the sedimentation rate was 0.41 cm/year.

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210Pb and 137Cs measurements in the Circum Bohai Sea coastal region: sedimentation rates and implications

Frontiers of Earth Science in China ◽

10.1007/s11707-008-0046-5 ◽

2008 ◽

Vol 2 (3) ◽

pp. 276-282 ◽

Cited By ~ 4

Author(s):

Fu Wang ◽

Hong Wang ◽

Jianfen Li ◽

Yandong Pei ◽

Changfu Fan ◽

...

Keyword(s):

Bohai Sea ◽

Coastal Region ◽

Sedimentation Rates ◽

210Pb And 137Cs

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Recent sedimentation rates in the Caravelas estuary (Bahia, Brazil) using unsupported 210Pb and 137Cs modeling

Radiochimica Acta ◽

10.1515/ract-2015-2503 ◽

2016 ◽

Vol 104 (7) ◽

Cited By ~ 3

Author(s):

José Lourenço Friedmann Angeli ◽

Natalia Venturini ◽

Paulo Alves de Lima Ferreira ◽

Rubens César Lopes Figueira

Keyword(s):

Coral Reef ◽

Atlantic Ocean ◽

Brazilian Coast ◽

Sedimentation Rates ◽

Land Uses ◽

Ecological Role ◽

210Pb And 137Cs ◽

Unsupported 210Pb ◽

Southern Bahia ◽

Southern Atlantic Ocean

AbstractThe Caravelas estuary is located in a zone of the Brazilian coast (Southern Bahia State) which has been submitted to different kinds of land uses during the last 50 years. This zone has an important ecological role, due to its mangroves and its location next to Abrolhos coral reef, the most important in the Southern Atlantic Ocean.

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