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Trends in Applied Sciences Research

Year: 2011 | Volume: 6 | Issue: 1 | Page No.: 102-107
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Authors

B.Y. Kamaruzzaman

K.Y.S. Willison

M.C. Ong

Keywords

Research Article

Determination of Estuarine Sedimentation Rates using 230Thexcess and 230Thexcess/232Th Ratio Methods in the Paka Estuary, Malaysia

B.Y. Kamaruzzaman, K.Y.S. Willison and M.C. Ong
The vertical profiles of 230Thexcess and 230Thexcess/232Th in a sediment core have been used to determine the sedimentation rates of Terengganu River estuary, Malaysia. Applying the 230Thexcess and 230Thexcess/232Th method, U and Th isotopic involved complete dissolution of the samples, followed by separation on anion exchange, average sedimentation rates of 1.02 and 1.01 cm year-1 were obtained, respectively. The results of the accretion rate obtained from the both methods are consistent with average sedimentation rates of 1.01 cm year-1. Assuming that the accretion rate values are accurate, this may imply that the sediments at the deepest core at 14 cm were deposited during the last 14.2 years ago.
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How to cite this article

B.Y. Kamaruzzaman, K.Y.S. Willison and M.C. Ong, 2011. Determination of Estuarine Sedimentation Rates using 230Thexcess and 230Thexcess/232Th Ratio Methods in the Paka Estuary, Malaysia. Trends in Applied Sciences Research, 6: 102-107.

URL: https://scialert.net/abstract/?doi=tasr.2011.102.107

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