Sources and Distribution of n-Alkanes in Borneo Peat Core, Sarawak, Malaysia

S.R. KONG, H. SHAARI, N. MOHD TAHIR, S.Y. PANG, M.F. FADZIL, A. SULAIMAN

doi:10.14233/ajchem.2020.22753

Sources and Distribution of n-Alkanes in Borneo Peat Core, Sarawak, Malaysia

DOI Web Site 被引用文献1件

S.R. KONG

Faculty of Science and Marine Environment, University Malaysia Terengganu, Terengganu, Malaysia
H. SHAARI

Institute of Oceanography and Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
N. MOHD TAHIR

Institute of Oceanography and Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
S.Y. PANG

Institute of Oceanography and Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
M.F. FADZIL

Institute of Oceanography and Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
A. SULAIMAN

Minerals and Geoscience Department of Malaysia, Jalan Perak, Seberang Jalan Putra, 05150 Alor Setar, Kedah, Malaysia

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説明

<jats:p>This work reported the n-alkanes contents in a 10 m peat core collected at Timbarap, Sarawak. Different biomarker proxies were used to understand the predominance of sources present in the tropical peatland of Borneo. The total concentrations of n-alkanes in selected depths of Timbarap peat core ranged between 0.01 and 12.60 μg/g with an average of 1.58 μg/g. The presence of strong odd-to-even predominance from higher molecular weight n-alkanes homologues with high values of carbon preference index (CPI) provide clear evidences of the terrestrial plant wax assemblages. Increment of low-molecular-weight n-alkanes provide an indicator of biogenic-aquatic organic materials. The ratios of isoprenoids (pristane and phytane) have shown that the peat core was under anaerobic and reducingdepositional conditions, which could result the predominance source that alternated between aquatic-biogenic and terrestrial-derived materials.</jats:p>