Trace metal in sediment from a deep-sea floor of Makassar Strait

Global Colloquium on GeoSciences and Engineering 2017

Budianto, F.^1 ; Lestari^1

Research Center for Oceanography, Indonesian Institute of Sciences, Ancol Jakarta

14430, Indonesia^1

关键词: Atomic absorption spectrophotometer;    Deep-sea floor;    Enrichment factors;    Metal concentrations;    Metals concentrations;    Observation point;    Sediment quality;    Surface layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/118/1/012057/pdf
DOI  :  10.1088/1755-1315/118/1/012057

来源: IOP

【 摘 要 】

Makassar Strait is located in the entrance of Indonesian Through Flow (ITF). However, the geochemistry of metals in sediment within Makassar Strait remains unexplored. The aim of this study was to measure the concentration of metals in sediment and to assess the sediment quality based on those metals concentrations. The sediment was collected from 632-4730 m in depth using giant piston corer on R/V Baruna Jaya VIII in December 2014. In each observation point, three layers of sediment were sub-sampled from the core i.e. surface layer (0-5 cm), middle layer (45-55 cm) and bottom layer. The metals were analyzed using acid digestion procedure followed by Atomic Absorption Spectrophotometer. The result indicated that the metal has spatially insignificant differences in sediment and the increase of metal concentration by depth was noticed. The Enrichment factor presented as no enrichment to minor enrichment of metal in sediment.