SEDIMENTOLOGY, STRATIGRAPHY AND DIAGENETIC HISTORY OF BUKIT CHONDONG-BUKIT TUNKU LEMBUBUKIT CHUPING, PERLIS

The Permian age Uppermost Kubang Pasu Formation was found underlying
the Chuping Formation in the North Peninsular of Malaysia. An integrated study
comprising sedimentology, stratigraphy of the Uppermost Kubang Pasu and
diagenetic history of Chuping Limestone has been conducted by involve three
research location which is Bukit Chondong, Bukit Tungku Lembu and Bukit
Chuping, Perlis. The purposes of this research are to construct the stratigraphy log as
a result to correlate the respective logs, to identify the lithofacies, to recognize the
depositional environment and to determine the source rock potential of the
Uppermost Kubang Pasu Formation in Bukit Chondong and Bukit Tungku Lembu,
Beseri Perlis. The details analysis of diagenetic history on the Chuping Limestone
was carried out in Bukit Chuping, Kangar, Perlis. Two lithostratigraphy logs and
cross section have been generated for the research area, one from Bukit Chondong
and one from Bukit Tungku Lembu which composed of the Uppermost Kubang
Pasu Formation. The clastic rocks samples have been taken from Bukit Chondong
and Bukit Tungku Lembu while the carbonate rocks sample are taken from Bukit
Chuping for several laboratory analysis such as thin section, X-Ray Diffraction and
Total Organic Carbon. The uppermost Kubang Pasu Formation has been identified
as coarsening upward facies distribution pattern throughout the study area. The
lithofacies has been identified in four facies which are (i) massive sandstone (F1),
(ii) parallel lamination sandstone (F2), (iii) tabular cross lamination sandstone (F3)
and (iv) mudstone (F4). These facies are grouped into three facies association
namely FA1- offshore to transitional zone, FA2-distal shoreface and FA3- proximal
shoreface. Trace fossils analysis showed that offshore to shoreface water
environment were in this study area. The shoreface fossils are crinoids and
brachiopods. Based on the petrographic analysis, the sandstone is mostly quartz
arenite with a few subarkose. The total organic content has found there is a potential
source rock, thus this correspond to the environment of deposition which sediment
deposits in anoxic environment with dissolved oxygen concentration of less than .5
milligrams per litre.