FASIES FLUVIAL FORMASI LEMAT, DAERAH LUBUK LAWAS, KECAMATAN BATANG ASAM, KABUPATEN TANJUNG JABUNG BARAT, PROVINSI JAMBI

Sapto Kis Daryono, Bambang Triwibowo, Afrilita Afrilita

Abstract


Secara geografis daerah penelitian terletak pada koordinat (UTM-WGS84 zona 48 S) 270250-273350mT dan 9874380mU. Sedangkan secara administratif daerah penelitian masuk ke dalam wilayah Kecamatan Batang Asam, Kabupaten Tanjung Jabung Barat, Provinsi Jambi. Berdasarkan analisis aspek-aspek geomorfologi pada daerah penelitian dibagi menjadi lima satuan bentuk lahan, antara lain satuan bentuk lahan perbukitan sesar bergelombang (S1), perbukitan homoklin berlereng miring (S2), perbukitan homoklin berlereng landai (S3), tubuh sungai (F1), gosong tepi sungai (F2). Stratigrafi daerah penelitian dapat dibagi menjadi enam satuan batuan dari tua ke muda yaitu Satuan Metabatupasir Mentulu, Satuan Batupasir-kuarsa Lemat, Satuan Konglomerat Lemat, Satuan Batupasir-kerikilan Lemat, Satuan batulanau Benakat. Struktur yang berkembang pada daerah penelitian berupa kekar dengan tegasan baratlaut-tenggara dan timurlaut- baratdaya. Terdapat tiga pola sesar yaitu sesar berarah timurlaut-baratdaya, sesar yang berarah baratlaut-tenggara, dan sesar yang relatif berarah barat barat laut-timur tenggara. Analisis fasies dilakukan pada masing-masing satuan batuan Formasi Lemat. Satuan Batupasir-kuarsa Lemat dijumpai elemen arsitektural berupa channel (CH), sand bedform (SB), floodplain (FF), lateral accretion (LA). Satuan Konglomerat Lemat dijumpai elemen arsitektural sediment gravity flows (SG) dan gravel bar (GB), sand bedform (SB). Satuan Batupasir-kerikilan Lemat dijumpai elemen channel (CH), lateral accretion (LA), dan floodplain (FF), sedangkan pada Satuan Batulanau Benakat dijumpai elemen abandoned channel FF(CH).

Kata-kata Kunci : Formasi Lemat, Fasies, Fluvial


References


Barber, A.J., Crow, M.J., and Milsom, J.S. 2005. Sumatra: Geology, Resources and Tectonic Evolution. London: The Geological Society

Beicip, 2007. Petroleum system analysis PT Medco E&P Indonesia, South Sumatra, Indonesia, tidak dipublikasikan.

Clements, B., Burgess, P.M., Hall, R. & Cottam, M.A. 2011. Subsidence and uplift by slab related mantle dynamics: a driving mechanism for the Late Cretaceous and Cenozoic evolution of continental SE Asia. In: Hall, R., Wilson, M.E. & Cottam, MA. (eds) The SE Asian Gateway: History and Tectonics of Australia–Asia Collision. Geological Society, London, Special Publications, 355, 37–51.

Daly, M.C., Hoopers, B.G.D., Smith, D.G., 1987. Tertiary plate tectonic and basin evolution in Indonesia. Proc. Of the 16th IPA Annual Convention.

Gafoer, S., Amin, T.C., and Pardede, R., 1994. Geologi lembar Muara Bungo, Sumatra, Skala 1:250.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.

IAGI. 1996. Sandi Stratigrafi Indonesia. Komisi Sandi Stratigrafi Ikatan Ahli Geologi Indonesia 1996.

Kamal A., Argakoesoemah R.M.I., Solichin. 2008. A proposed basin-scale lithostratigraphy for South Sumatra Basin. Indonesian Association of Geologist: Sumatra Stratigraphy Workshop, Bandung: Institut Teknologi Bandung, p. 85-97.

Miall, A.D., 1996, The Geology of Fluvial Deposits : Sedimentary Facies, Basin Analysis and Petroleum Geology, Springer, New York.

Metcalfe, I., 2011b. Tectonic framework and Phanerozoic evolution of Sundaland. Gondwana Research 19, 3–21.

Pulonggono, A., 1984. Sumatran microplates, their characteristics and their role in the evolution of the Central and South Sumatra Basin. Proc. Of the 13th IPA Annual Convention, Jakarta, May.

Pulonggono, A., 1986. Tertiary Structural Features Related To Extensional and Compressive Tectonics In The Palembang Basin, South Sumatra, Proc 15th Indonesian Petroleum Association Annual Convention. p. 187-213.

Pulonggono, A., Haryo, S.A., and Kosuma, C.G., 1992. Pre-Tertiary and Tertiary Fault System as A Framework of The South Sumatra Basin; Studi of SARMap, Proc 21st Indonesian Petroleum Association Annual Convention. p. 339-360.

Rickard, M. (1972). Fault Classification Discussion. Geological Society of America Bulletin, 83, 2545 - 2546. Reading, H. G. (Ed.) (1986a) Sedimentary environments and facies (2nd Ed): Oxford: Blackwell Scientific Publishing.

Ryacudu, R. 2008. Tinjauan Stratigrafi Paleogen Cekungan Sumatra Selatan. Indonesian Association of Geologist: Sumatra Stratigraphy Workshop, Bandung: Institut Teknologi Bandung, p. 99-114.

Selley, R.C., 1985. Ancient sedimentary environments and their sub-surface diagnosis third edition, Chapman and Hall Ltd., London, p. 18-37, 146-210.

Van Bemmelen, R.W. 1949. The Geology of Indonesia, Vol. IA: General Geology of Indonesia and Adjacent Archipelagoes. The Hague.

Van Zuidam, R. A., 1983. Guide to Geomorphologic Aerial Photographic Interpretation and Mapping. ITC. 292h.

William, H., Turner, F. J., Gilbert, C. M., 1954. Petrography An Introduction to the Study of Rocks in Thin Section. W.H. Freeman and Company Inc., San Fransisco.

William, H., Turner, F. J., Gilbert, C. M., 1982. Petrography. An Introduction to the Study of Rocks in Thin Section. W.H. Freeman and Company Inc., San Fransisco.




DOI: https://doi.org/10.31315/jigp.v5i2.9671

DOI (PDF (Bahasa Indonesia)): https://doi.org/10.31315/jigp.v5i2.9671.g5393

Refbacks

  • There are currently no refbacks.


Copyright (c) 2023 Jurnal Ilmiah Geologi PANGEA
slot gacor slot