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Sains Malaysiana 48(11)(2019):
2583–2593 http://dx.doi.org/10.17576/jsm-2019-4811-28
The Present-day Landscape of Bukit Keluang Formation: Geoheritage Potential
for Conservation and Geotourism (Keadaan Semasa Landskap Formasi Bukit Keluang: Potensi Geowarisan untuk Pemuliharaan dan Geopelancongan) MUHAMMAD ASHAHADI
DZULKAFLI,
NORASIAH
SULAIMAN*,
AZRIN
AZMI,
KAMAL
ROSLAN
MOHAMED
& CHE AZIZ ALI Program
Geologi, Pusat Sains Bumi dan
Alam Sekitar,
Fakulti Sains dan
Teknologi, Universiti
Kebangsaan Malaysia, 43600 UKM Bangi,
Selangor Darul Ehsan, Malaysia Received:
16 April 2019/Accepted: 15 August 2019 ABSTRACT The Late
Permian sedimentary rock of Bukit Keluang
Formation is well exposed on three isolated hills namely the Bukit
Keluang, Bukit Bubus and Bukit Dendong. The consecutive hills exhibit a unique landscape
of linear ridge surrounded by the alluvial plains and are well known
for their beautiful sandy beaches and outstanding landscapes. Geological
landscape in the area falls into three heritage value set (scientific,
aesthetic and recreational value) that in need of immediate conservation.
Scientific evidence shows that the study area exhibits a unique
lithologically and structurally controlled
landscape characterised by first order
topography of folded and thrusted sequence (anticlinal hill), linear
cuesta ridge and denudation hill. Differential erosion of the conglomerate-sand-shale
sequences led to the development of linear ridge with different
elevation profiles. The geometric and geographic position of the
hills conforms with the regional structural trend in the area with
the N-S trending fault system is inferred as the major fault that
displaced the Bukit Keluang Formation. Internal complexities in the individual
structures in the form of cross-faults, oblique-faults and lineaments
trending NW-SE,
NE-SW
to N-S directions have formed cave morphological feature
and divide the hills into separate blocks. The geological landscape
also contributes to an aesthetic value such as the beautiful hilly
landscape and sandy beach, while recreational values including hiking,
mountain biking and water activities. Geological heritage and geotourism
could have a positive future in Bukit Keluang,
Bukit Bubus and Bukit Dendong. The in-situ
and ex-situ geological conservation is urgently needed
in order to support the efforts to implement geoscience knowledge
to the public. Keywords: Bukit Keluang Formation; geological conservation; geological landscape;
geotourism ABSTRAK Batu sedimen Formasi Bukit Keluang berusia Perm akhir tersingkap dengan baik di tiga bukit terpencil
iaitu Bukit Keluang,
Bukit Bubus dan Bukit Dendong. Bukit-bukit tersebut mempamerkan landskap unik permatang
linear yang dikelilingi oleh
dataran aluvial
dan terkenal dengan
pantai berpasir
yang indah dan landskap
yang luar biasa.
Landskap geologi di kawasan ini dibahagikan
ke dalam tiga set nilai warisan (nilai saintifik, estetik dan rekreasi) yang memerlukan pemuliharaan segera. Bukti saintifik
menunjukkan bahawa
kawasan kajian memperlihatkan landskap dikawal unik oleh
litologi dan
struktur yang dicirikan oleh topografi yang terbentuk oleh jujukan yang terlipat dan tersesar (bukit
antiklin), permatang
kuesta linear dan bukit gondol. Hakisan
yang berbeza pada
jujukan konglomerat-pasir-syal menyebabkan pembentukan permatang linear dengan profil ketinggian yang berbeza. Kedudukan geometri dan geografi
bukit sesuai
dengan tren struktur serantau di kawasan kajian dengan sistem
sesar berarah
N-S disimpulkan sebagai sesar utama yang menganjak Formasi Bukit Keluang. Kerencaman struktur individu dalam bentuk sesar
silang, sesar
serong dan lineamen
berarah NW-SE, NE-SW dan N-S telah membentuk
morfologi gua
dan membahagikan bukit-bukit tersebut kepada blok berasingan.
Landskap geologi
ini juga menyumbang
kepada nilai
estetik seperti landskap perbukitan yang indah dan pantai
berpasir, manakala
nilai rekreasi termasuklah aktiviti mendaki, berbasikal rentas bukit dan
aktiviti air seperti
berkelah. Warisan geologi dan geopelancongan
di Bukit Keluang, Bukit Bubus
dan Bukit Dendong
mempunyai masa depan yang cerah. Pemuliharaan geologi secara in-situ
dan ex-situ sangatlah
diperlukan bagi
menyokong usaha mengetengahkan ilmu geologi kepada masyarakat. Kata kunci: Formasi
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