Rare earth elements distribution in marine sediments of Malaysia coasts

Abstract

In the east coast Peninsular Malaysia region, sediments are transported by several rivers from the east Malaysia into the South China Sea estuary. In the vicinity of the five river estuaries core sediments were collected in order to investigate rare earth elements (REEs) profile. Core sediments were divided into strata of between 2 to 4 cm intervals and prepared for analyzing by ICP-AES. REE concentrations of 54.3 μg/gr at 24-26 cm in EC4 increased to 114.1 μg/gr at 20-22 cm in EC5. The measured concentration of LREEs and Fe normalized enrichment factors indicated that sediments were not enriched with light rare earth elements derived from effluents of anthropogenic activities. Results of the total concentration were used to establish baseline data in environmental pollution assessment and to develop the correlations between the Ce/Ce* and Eu/Eu* anomalies and the distribution patterns of some light rare earth elements (LREEs) and the heavy rare earth elements (HREEs). The chondrite-normalized ratios of REEs showed LREEs enrichment and flat HREE depletion.

Dataset on concentration and enrichment factor of rare earth elements (REEs) in sediments of Linggi River, Malaysia

“…The relative bias (%) values of REEs range from −18.9 to 14.2%. The relative bias of the REEs are within the range of the acceptable values (<±20%) [1] , [2] .…”

Distribution of Heavy Metals and Rare Earth Elements in the Surface Sediments of Penang River Estuary, Malaysia

“…Chondrite meteorite composition was used to normalize REEs as it represents the primordial earth and also considering the granitoids as the dominant at the study area. A similar pattern was reported in Terengganu River Basin [29] and marine sediments of the South China Sea [30]. Slightly positive Ce anomaly and negative Eu anomaly was also observed.…”

Adequate Advance Provided by a Familiar Fluid Dynamic Balance Principle to Tools and Techniques for Water Quality Interpretation: Experienced in Yaound&#233; (Cameroun) 2&lt;sup&gt;nd&lt;/sup&gt; Supply Dam

“…The MBT must be removing vertically from water and the water-sample collecting (throughout the little door C2) thereafter. The Mbane Bathymetric Tube will provide adequate advance to tools and techniques for studies on the REEs (rare earth elements) [6]- [21]. Indeed, assembling many tubes of reasonable length one after the other (as do engineers on oil rigs), water samples will be taken at greater depths up to 100 m or more.…”