Petrogenesis and depositional environment of paleozoic Sedili and Pengerang Volcaniclastics in East Johor Basin, Peninsular Malaysia

Sugeng Sapto Surjono, Mohd. Shafeea Leman, Che Aziz Ali, Kamal Roslan Mohamed, Mohamed H.M. Fathan

Research output: Contribution to journalConference article

Abstract

Volcaniclastic rocks in East Johor Basin are found in a relatively great abundance comprising Sedili and Pengerang Formations excluding the metamorphics, siliciclastics, and granites. Since the volcaniclastic rocks are found in a different formation, this study aims to find out the characteristics of each rock. Geology, petrography, and geochemical analyses were elaborated to reveal the petrogenesis and depositional environment in the studied area on the basis of fieldwork data and 24 samples collected from outcrops. The Sedili and Pengerang Formations are dominated by acidic rocks of rhyolite, rhyodacite, ignimbrite, and lava classifiied into calc-alkaline magma series which indicates a subduction-related product. Moreover, those acidic rocks are grouped into active continental margin. Eventhough volcanic rocks in Sedili and Pengerang Formations exhibit similar characteristics, they are different in several major contents. Therefore, it is inferred that both Sedili and Pengerang Formations were deposited in different phase. Coincidentally, depositional environment of both formations is also distinct. Sedili Formation were deposited in the subaerial to shallow marine, meanwhile, Pengerang Formation is interpreted to be deposited in deeper depositional setting.

Original languageEnglish
Article number04009
JournalE3S Web of Conferences
Volume76
DOIs
Publication statusPublished - 15 Jan 2019
Event4th International Conference on Science and Technology, ICST 2018 - Yogyakarta, Indonesia
Duration: 7 Aug 20188 Aug 2018

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petrogenesis
depositional environment
Paleozoic
Rocks
basin
rock
Petrography
Volcanic rocks
ignimbrite
Geology
rhyolite
petrography
lava
fieldwork
continental margin
volcanic rock
outcrop
subduction
magma
geology

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

Cite this

Petrogenesis and depositional environment of paleozoic Sedili and Pengerang Volcaniclastics in East Johor Basin, Peninsular Malaysia. / Surjono, Sugeng Sapto; Leman, Mohd. Shafeea; Ali, Che Aziz; Mohamed, Kamal Roslan; Fathan, Mohamed H.M.

In: E3S Web of Conferences, Vol. 76, 04009, 15.01.2019.

Research output: Contribution to journalConference article

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