Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia

Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia

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...

Full description

Bibliographic Details
Main Authors: Yunus, Kamaruzzaman, Willison, KYS, Ong, Meng Chuan
Format: Article
Language:English
Published: Academic Journals Inc., USA 2011
Subjects:
QD Chemistry
Online Access:http://irep.iium.edu.my/18855/
http://irep.iium.edu.my/18855/
http://irep.iium.edu.my/18855/
http://irep.iium.edu.my/18855/1/determination_of_estuarine.pdf
id iium-18855
recordtype eprints
spelling iium-188552012-04-26T00:07:56Z http://irep.iium.edu.my/18855/ Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia Yunus, Kamaruzzaman Willison, KYS Ong, Meng Chuan QD Chemistry 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. Academic Journals Inc., USA 2011 Article PeerReviewed application/pdf en http://irep.iium.edu.my/18855/1/determination_of_estuarine.pdf Yunus, Kamaruzzaman and Willison, KYS and Ong, Meng Chuan (2011) Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia. Trends in Applied Sciences Research, 6 (1). pp. 102-107. ISSN 1819-3579 (P), 2151-7908 (O) http://scialert.net/abstract/?doi=tasr.2011.102.107 DOI: 10.3923/tasr.2011.95.100
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic QD Chemistry
spellingShingle QD Chemistry
Yunus, Kamaruzzaman
Willison, KYS
Ong, Meng Chuan
Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia
description 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.
format Article
author Yunus, Kamaruzzaman
Willison, KYS
Ong, Meng Chuan
author_facet Yunus, Kamaruzzaman
Willison, KYS
Ong, Meng Chuan
author_sort Yunus, Kamaruzzaman
title Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia
title_short Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia
title_full Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia
title_fullStr Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia
title_full_unstemmed Determination of estuarine sedimentation rates using 230Thexcess and 230Thexcess/232Th ratio methods in the Paka estuary, Malaysia
title_sort determination of estuarine sedimentation rates using 230thexcess and 230thexcess/232th ratio methods in the paka estuary, malaysia
publisher Academic Journals Inc., USA
publishDate 2011
url http://irep.iium.edu.my/18855/
http://irep.iium.edu.my/18855/
http://irep.iium.edu.my/18855/
http://irep.iium.edu.my/18855/1/determination_of_estuarine.pdf
first_indexed 2023-09-18T20:28:05Z
last_indexed 2023-09-18T20:28:05Z
_version_ 1777408551528955904

Similar Items