Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Vol 35, No 2 (2014): November 2014

FACIES ANALYSIS, SEDIMENTOLOGY AND PALEOCURRENT OF THE QUATERNARY NENERING FORMATION, PENGKALAN HULU, MALAYSIA

Ulfa, Yuniarti ( School of Physics, Universiti Sains Malaysia)
Rong Yu, Evonne Hooi ( School of Physics, Universiti Sains Malaysia)
Kit, Ooi Cheng ( School of Physics, Universiti Sains Malaysia)



Article Info

Publish Date
01 Nov 2014

Abstract

Nenering Formation is essentially made up of semi-consolidated sediments, which are divided into basal conglomerate beds, conglomeratic sandstone, cross-bedded sandstone, and siltstone to muddy layers facies. It is overlie unconformable to the Berapit Formation, but conformable to the Kroh and Grik Formations. The stratigraphy of Nenering Formation is a fining upwards sequence where the thickness of conglomerate beds become thinner upwards and become thicker for conglomeratic sandstone. The thickness varies from 0.5 m to tenths of meters. The more sandy in the upper portion (cross-bedded sandstone) overlie with thin siltstone and mudstone facies. The clast and grain composition suggested that the material making up the sedimentary sequence were derived predominantly from the erosion of granitoid rocks and sedimentary and metamorphic rocks constitute a minor provenance. Imbrications and the trend sizes of clasts indicate that the palaeo-current flow toward northeast. Cross bedding that was found in conglomerate and sandstone indicates the main channel depositional environment. The sequence stratigraphy of this area match with the Saskatchewan fluvial braided channel model. Keywords: conglomerate, facies, fluvial, paleocurrent, stratigraphy, sedimentology

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Journal Info

Abbrev

eksplorium

Publisher

Subject

Social Sciences

Description

Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir, adalah jurnal yang diterbitkan oleh Pusat Teknologi Bahan Galian Nuklir-BATAN yang telah diakreditasi LIPI No.749/AU2/P2MI-LIPI/08/2016 dan menempati peringkat SINTA ...