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http://dx.doi.org/10.17576/jsm-2019-4811-25
Kepelbagaian Jenis
Batuan di dalam Kompleks Stong berdasarkan Cerapan Lapangan dan Kajian
Petrografi
(Diversity of Rocks in
the Stong Complex based on Field and Petrographic Studies)
MOHD ROZI UMOR1*, AZMAN ABDUL GHANI2 & NORA MUDA3
1Center
for Earth Science and the Environment, Faculty of Science & Technology, Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia
2Geology
Department, Faculty of Science, University Malaya, 50603 Kuala Lumpur, Wilayah
Persekutuan, Malaysia
3Center
for Modeling and Data Science, Faculty of Science and Technology, Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia
Diserahkan: 15 Mac
2019/Diterima: 15 Ogos 2019
ABSTRAK
Gunung Stong terletak
di dalam unit batuan yang dikenali sebagai Kompleks Stong. Kompleks Stong ini
terdiri daripada tiga unit suit batuan dikenali sebagai Suit Berangkat, Suit
Kenerong dan Suit Noring. Suit Berangkat boleh dibahagikan kepada tiga unit
litodemik, iaitu litodemik Granit Sungai Lah, Granodiorit Bertam dan Tonalit
Dabong, manakala Suit Kenerong mengandungi litodemik Leukogranit Stong dan
Migmatit Sg Kenerong. Bagi Suit Noring pula, ia dibahagikan kepada Granit
Sungai Long, Granit Sungai Suda dan Mikrogranit Sungai Terang. Selain itu,
batuan keliling juga tersingkap terdiri daripada batuan metasedimen dan sisa
kubah hasil terobosan pluton. Penamaan di lapangan dan kajian secara petrografi
menunjukkan terdapat 10 jenis batuan igneus iaitu terdiri daripada monzonit
hingga monzonit kuarza, granit hornblend dan granit biotit bertekstur porfiri
dan granit biotit tekstur sama saiz butiran hingga mikrogranit, granodiorit dan
tonalit. Seterusnya, terdapat juga selang lapis batuan metasedimen yang
termetamorf membentuk syis biotit muskovit, syis hornblend dan syis garnet.
Kepelbagaian jenis batuan ini adalah unik dan boleh dijadikan satu sumber
geowarisan untuk mengiktiraf Kompleks Stong kepada Geotaman di Kelantan.
Kata kunci: Gunung
Stong; kajian lapangan; kepelbagaian jenis batuan; Kompleks Stong; petrografi
ABSTRACT
Stong Mount is located
within the rock unit known as Stong Complex. The Stong Complex consists of
three suite rock units whiz the Berangkat Suite, Kenerong Suite and Noring
Suite. The Berangkat Suite can be divide into three litodemics unit called as
Sungai Lah Granite, Bertam Granodiorite and Dabong Tonalite, whereas the
Kenerong Suite consists of Stong Leucogranite and Sg Kenerong Migmatite. For
Noring Suite, it was divided into Sungai Long Granite, Sungai Suda Granite and
Sungai Terang Microgranite. In addition, the country rock was also covered by
metasedimentary rock and roof pendant as a result from plutonic intrusion.
Naming in the field and petrographic study show that the igneous rocks can be
classified into 10 types such as monzonite to quartz monzonite, hornblend
granite and biotite granite with phorpyritic texture and isogranular biotite
granite to microgranite, granodiorite and tonalite. Futhermore, there was an
occurrences of metamorphosed interbedded sedimentary rocks forming a biotite
muscovite schist, hornblend schist and garnet schist. The variety of rock type
is unique and can be establish as geoheritage sources to nominate Stong Complex
as Kelantan Geopark.
Keywords: Field study;
Gunung Stong; rock type variety; Stong Complex; petrographic
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*Pengarang untuk surat-menyurat; email: umor@ukm.edu.my
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