The Malaysian Journal of Analytical Sciences Vol 12 No 2 (2008): 403 – 409

 

 

 

 

KADAR PENGENAPAN SEDIMEN HUTAN PAYA BAKAU DI SUNGAI MIANG, PAHANG, MALAYSIA: KEPEKATAN MENEGAK ²³⁰Th MELAWAN KAEDAH PENANDA BUATAN MENDATAR

 

Kamaruzzaman Yunus^1*, Jamil Tajam², Hasrizal Shaari², Noor Azhar Mohd. Shazili²

 & Misbahul, Mohd Amin²

 

¹Institute of Oceanography and Maritime Studies,

International Islamic University Malaysia, Jalan Istana, 25200 Kuantan, Pahang.

²Fakulti Sains dan Teknologi,

University Malaysia Terengganu, 21030, Kuala Terengganu, Terengganu, Malaysia.

 

*Corresponding author: kama@iiu.edu.my

 

Abstract

Mangroves have enormous ecological value and one of their important role is to act as an efficient sediment trappers which dominantly supplied by rivers and the atmosphere to the oceans.  Applying the ²³⁰Th_excess method, an average accretion rate of 0.54 cm yr^-1 was obtained.  This is comparable to that of an artificial horizon marker method giving an average of 0.54 cm yr^-1.  The ²³⁰Th_excess method provides a rapid and simple method of evaluating ²³⁰Th_excess accumulation histories in sediment cores.  Sample preparation is also significantly simplified, thus providing a relatively quick and easy method for the determination of the accretion rate in mangrove areas. 

 

Keywords: Mangroves, ²³⁰Th_excess, horizon marker method

 

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