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Sains Malaysiana 45(12)(2016): 1897–1904 http://dx.doi.org/10.17576/jsm-2016-4512-14 Fasies dan Sekitaran Sedimen Formasi
Singa di Langkawi, Malaysia (Facies and Sedimentary Environment of
Singa Formation of Langkawi, Malaysia) MOHAMAD HANIF
KAMAL
ROSLAN,
CHE
AZIZ
ALI*
& KAMAL ROSLAN MOHAMED Pusat Penyelidikan
Langkawi, Institut Alam Sekitar dan Pembangunan (LESTARI) ABSTRAK Batuan Formasi Singa yang terdiri
daripada batu lumpur dominan, berselang lapis dengan batu lodak,
batu pasir dan juga sedikit unit konglomerat tertabur secara meluas
di kepulauan Langkawi. Formasi Singa boleh dibahagikan kepada
sepuluh fasies sedimen dan empat sekutuan fasies. Keputusan kajian
menunjukkan Formasi Singa telah terendap di lautan cetek, iaitu
di sub-sekitaran luar pesisir, transisi, muka pesisir serta dalam
alur. Lautan cetek Lembangan Singa dipengaruhi oleh iklim sejuk
kerana terdapat sedimen asalan glasier, iaitu fasies batu lumpur
berpebel. Kertas kerja ini akan menjelas dan membincangkan segala
aspek sedimentologi formasi batuan ini. Kata kunci: Analisis fasies;
Formasi Singa; sedimentologi ABSTRACT Rocks of the Singa Formation
are widely distributed in Langkawi. The formation dominantly consists
of mudstones interbedded with siltstone, sandstone and conglomerate
units. the Singa Formation can be divided into ten types of sedimentary
facies and four types of facies association. Based on facies analysis,
the Singa Formation is interpreted to have been deposited in offshore,
offshore-transition and shoreface environments and also in channel.
This shallow marine of the Singa Basin are affected by cold climates,
because there are glacial sedimentary deposits namely pebbly mudstone
facies. This paper will describe and discuss all aspects of sedimentology
for this formation. Keywords: Facies analysis; sedimentology; Singa Formation RUJUKAN Ahmad
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