The granites of the Southeast Asian Tin Belt

Cobbing, E. J.; Mallick, D. I. J.; Pitfield, P.E.J.; Teoh, L. H.

doi:10.1144/gsjgs.143.3.0537

Cited by 327 publications

(383 citation statements)

References 16 publications

Supporting

Mentioning

354

Contrasting

Unclassified

Order By: Relevance

“…However, Muncung Granit was also detected in Lingga island during field work and strengthened by geochemistry interpretation [8,22]. Muncung Granite was classified as S-type whilst Tanjungbuku as I-type [23].…”

Section: Geological Settingmentioning

confidence: 87%

Thorium and Total REE Correlation in Stream Sediment Samples from Lingga Regency

Irzon

2018

EKSPLORIUM

View full text Add to dashboard Cite

Rare Earth Elements (REE) are found in variety of minerals, which are mobilized by weathering from adjacent watersheds into streambeds and affect the chemical content. A study of stream sediments is useful to trace the source of metals, as they are representative of the composition of the drainage basin. This study describes trace and rare earth elements geochemistry composition of selected nine stream sediment samples from two major Islands in Lingga Regency, namely Singkep and Lingga. Moreover, the associations of rare earth elements abundance to other elements in selected samples are used on tracing the most possible mineral as REE source. Nine selected stream sediments were identified megascopically and measured for the trace and rare earth elements composition by inductively coupled plasma -mass spectrometry (ICP-MS). The selected samples from Lingga yielded very strong average Zr, Mn, Ba, and Rb compositions of 246 ppm, 172 ppm, 126 ppm, and 84 ppm, respectively. On the other hand, Zr, Mn, Cr, and Rb are the top four abundant trace elements from Singkep with consecutive median value of 486 ppm, 305 ppm, 145 ppm, and 85 ppm. Feltilizer for agricultural area at Lingga most posibly contain As and Rb upon these elements abundances and association. Tin mine activity was found to influence the streambeds composition with low Rb-Cs composition but high Zr-REE abundance. Very strong Th to ∑REE association suggests that thorium-bearing mineral, especially monazite-La, is the main REE source of the selected samples. All of the studied samples exhibit Eu negative anomaly to imply the absence of either detrital apatite or chemical weathering of apatite. Moreover, REE of Lingga stream sediments is averagely more fractionated than Singkep. Keywords

show abstract

Section: Geological Settingmentioning

confidence: 87%

Thorium and Total REE Correlation in Stream Sediment Samples from Lingga Regency

Irzon

2018

EKSPLORIUM

View full text Add to dashboard Cite

show abstract

“…All soils were developed from granitoid parent material [23]. The granitoid bedrock in the Main Range of Peninsular Malaysia is of Triassic age (200-230 Ma) [22,26]. This claim had been proven by U-Pb zircon emplacement which indicated the age of granite ranging from late Triassic (230 ± 9 Ma) to early Jurassic (207 ± 14 Ma) with a peak around 210 Ma [27].…”

Section: Materials and Methods Study Area And Soil Samplingmentioning

confidence: 99%

Structural composition of organic matter in particle-size fractions of soils along a climo-biosequence in the main range of Peninsular Malaysia

et al. 2016

View full text Add to dashboard Cite

Information on structural composition of organic matter (OM) in particle-size fractions of soils along a climo-biosequence is sparse. The objective of this study was to examine structural composition and morphological characteristics of OM in particle-size fractions of soils along a climo-biosequence in order to better understand the factors and processes a ecting structural composition of soil organic matter. To explore changes in structural composition of OM in soils with di erent pedogenesis, the A-horizon was considered for further analyses including particle-size fractionation, solid-state C nuclear magnetic resonance (NMR) spectroscopy and scanning electron microscopy (SEM). Due to the increase in the thickness of organic layer with increasing elevation, the A-horizon was situated at greater depth in soils of higher elevation. The relationship between relative abundances of carbon (C) structures and particle-size fractions was examined using principal component analysis (PCA). It was found that alkyl C (20.1-73.4%) and O-alkyl C (16.8-67.7%) dominated particle-size fractions. The proportion of alkyl C increased with increasing elevation, while Oalkyl C showed an opposite trend. Results of PCA conrmed this nding and showed the relative enrichment of alkyl C in soils of higher elevation. Increase in the proportion of alkyl C in 250-2000 µm fraction is linked to selective preservation of aliphatic compounds derived from root litter. SEM results showed an increase in root contribution to the 250-2000 µm fraction with increasing elevation. For the <53 µm fraction, pedogenic process of podzolization is responsible for the relative enrichment of alkyl C. This study demonstrates that changes in structural composition of OM in particle-size fractions of soils along the studied climo-biosequence are attributed to site-speci c di erences in pedogenesis as a function of climate and vegetation.

show abstract

“…The area is made up of Jerangau Forest Pluton (Figure 2). The pluton is further divided into Lerek, Binjai and Payong granites 4 . Lerek and Binjai granites are characterized by pinkish colour, medium-to coarse-grained phaneritic texture.…”

Section: Eastern Belt Of Peninsular Malaysiamentioning

confidence: 99%

Petrogenesis of Ajil Mafic Dykes from Eastern Belt of Peninsular Malaysia:Fractionated within Plate Lithospheric Mantle Magma Beneath the Eastern Malaya Block

Badruldin¹,

Ghani²,

Quek³

2017

Current Science

View full text Add to dashboard Cite

North-eastern trending mafic dykes are found intruding granitic body in Ajil area, Eastern Belt of Peninsular Malaysia. The intrusions display sharp, vertical to sub-vertical contacts to granitic host and consist mainly of plagioclase and clinopyroxene. Majority of the dykes are quartz tholeiite with some olivine tholeiite. All dykes display enrichment in light rare earth elements (LREE) relative to heavy rare earth elements (HREE) and depletion in high field strength elements (HFSE) and Pb. Low compatible elements' content such as MgO, Ni and Cr implied that crystal fractionation were controlled by olivine and clinopyroxene. The dykes were originated from shallow lithospheric mantle, the source region of which has been influenced by hydrous metasomatism. The emplacement of the dykes took place in fault-controlled within-plate tectonic setting.

show abstract

The granites of the Southeast Asian Tin Belt

Cited by 327 publications

References 16 publications

Thorium and Total REE Correlation in Stream Sediment Samples from Lingga Regency

Thorium and Total REE Correlation in Stream Sediment Samples from Lingga Regency

Structural composition of organic matter in particle-size fractions of soils along a climo-biosequence in the main range of Peninsular Malaysia

Petrogenesis of Ajil Mafic Dykes from Eastern Belt of Peninsular Malaysia:Fractionated within Plate Lithospheric Mantle Magma Beneath the Eastern Malaya Block

Contact Info

Product

Resources

About