STUDI MIKROFACIES DAN DIAGENESIS BATUGAMPING DARI FORMASI TETAMBAHU SEBAGAI MIKROKONTINEN MESOZOIKUM DI DAERAH TELUK TOMORI

Gusti Muhammad Lucki Junursyah, Alviyanda Alviyanda, Nadila Novandaru

DOI: http://dx.doi.org/10.32693/jgk.16.1.2018.535

Abstract


Cekungan Tomori merupakan salah satu cekungan frontier yang terdapat di daerah Teluk Tomori, Sulawesi, termasuk didalamnya Formasi Tetambahu yang merupakan salah satu batuan  reservoir berpotensi hidrokarbon. Kemunculan formasi ini yang didominasi oleh sedimen karbonat terjadi akibat adanya aktivitas tektonisme pada Miosen, bersamaan dengan kemunculan mikrokontinen Banggai-Sula. Berdasarkan analisis mikrofasies dan diagenesis dari tujuh sampel batugamping wackestone Formasi Tetambahu pada lintasan Korololama, menunjukkan karakteristik biosclastic wackestone dan coated grain in micrite, dan diendapkan pada lingkungan shelf lagoon open circulation. Proses diagenesis yang dialami formasi ini adalah eodiagenesis, mesodiagenesis, dan telodiagenesis, sehingga porositas yang terbentuk terdiri atas vuggy porosity, interparticle, dan intragranular microporosity. 

Kata kunci: Formasi Tetambahu, mikrofasies, diagenesa batugamping, Teluk Tomori Sulawesi.

 

Tomori Basin is one of the frontier basins located in the Tomori Bay area, Sulawesi, including the Tetambahu Formation which is one of the potentially reservoir rocks of hydrocarbon. The appearance of this formation is dominated by carbonate sediment which occurs due to the tectonic activity on Miocene, along with the emergence of Banggai-Sula microcontinent. Based on the analysis of microfacies and diagenesis of seven limestone samples from Tetambahu Formation in the Korololama section, shows the characteristics of biosclastic wackestone and coated grain in micrite, and deposited in shelf lagoon open circulation. Tetambahu formation has experienced diagenesis process such as eodiagenesis, mesodiagenesis, and telodiagenesis, therefore the porosity is formed consisting of vuggy porosity, interparticle, and intragranular microporosity.
Keywords: Tetambahu Formation, microfacies, limestone diagenesis Tomori Bay Sulawesi


Keywords


Formasi Tetambahu;mikrofasies;diagenesa batugamping;Teluk Tomori Sulawesi

References


Audley-Charles, M.G., Carter, D.J., dan Milson, J.S., 1972. Tectonic Development of Eastern Indonesia in Relation to Gondwana Dispersal. Nat. Phys. Sci., jl. 239, No.90:35-39.

Audley-Charles, M.G., Carter, D.J., Barber, A.J., Norvick, M.S., dan Tjokrosapoetro, S., 1979. Reinterpretation of the geology of Seram: Implications for the Banda Arcs and northern Australia. Journal of Geological Society, 136:547-568.

Audley-Charles, M.G., 1991. Tectonics of the New Guinea Area. Annual Rev. of Earth and Plan Science, 19:17-41.

Alviyanda. 2014. Geologi daerah Kolonodale dan sekitarnya, Kecamatan Petasia Timur, Kabupaten Morowali Utara, Provinsi Sulawesi Tengah. Laporan Pemetaan Geologi Lanjut, Universitas Padjadjaran, Jatinangor (tidak terbit).

Bakosurtanal. 2001. Atlas Propinsi Sulawesi Tengah, skala 1:700.000. Badan Koordinasi Survei dan Pemetaan Nasional, Bogor.

Badan Geologi. 2009. Peta Cekungan Sedimen Indonesia Berdasarkan Data Gaya Berat dan Geologi, skala 1: 5,000,000. Badan Geologi, Bandung.

Bachri, S., dan Sidarto. 2013. Tektonik Sulawesi. In: Surono dan Hartono, U. (eds.), Geologi Sulawesi. LIPI Press, Bandung:277-302.

Choquette, P.W., dan Pray, L.C., 1970. Geologic Nomenclature and Classification of Porosity in Sedimentary Carbonates. The American Association of Petroleum Geologists Bulletin, 54:207-250.

Dunham, R.J., 1962. Classification Of Carbonate Rocks According to Depositional Texture. In: Ham, W.E., (eds.), Classification of Carbonate Rocks. Am. Association Petroleum Geologist Mem., 1:108-121.

Davidson, J.W., 1991. The Geology of Prospective of Buton Island, S.E. Sulawesi, Indonesia. Proceedings of the Indoneseian Petroleum Association Annual Convention, Jakarta.

Garrad, R.A., Supandjono, J.B., dan Surono. 1988. The Geology of the Banggai-Sula Microcontinent, Eastern Indonesia. Proc. 17th Ann. Con. Indon. Petroleum Assoc., Jakarta.

Hamilton, W., 1979. Tectonics of the Indonesian region. U.S Geological Survey Professional Paper, 1078:345.

Hasanusi, D., Abimanyu, R., Artono, E., dan Baasir, A., 2004. Prominent Senoro Gas Field Discovery in Central Sulawesi. Indonesia Petroleum Association, Proceedings, Deepwater and Frontier Exploration in Asia and Australia Symposium.

Hall, R., Clements, B., dan Smyth, H.R., 2009. Sundaland: Basement character, structure and plate tectonic development. Proceedings Indonesian Petroleum Association, 33rd Annual Convention, Jakarta.

Junursyah, G.M.L., 2014. Laporan Akhir Kegiatan Survei Magnetotelurik di Daerah Cekungan Tomori dan Sekitarnya, Provinsi Sulawesi Tengah. Laporan Internal Kelompok Kerja Survei Hulu Migas, Pusat Survei Geologi, Bandung tidak dipublikasi.

Longman, M.W., 1980. Carbonate diagenetic textures from nearsurface diagenetic carbonates. Am. Assoc. Petroleum Geologist Bull., v. 64:461-487.

Metcalfe, I., 1988. Origin and Assembly of Southeast Asian Continental Terranes. Geology Society of London, Special Publication, 37:101-118.

Metcalfe, I., 1990. Allochtonous Terrane Processes in Southeast Asia. Phil. Trans. Of the Royal Society of London, Series A, 331:625-640.

Pigram, C.J., Surono, dan Supandjono, J.B., 1985. Origin of the Sula Platform, eastern Indonesia. Geology, 13:246-248.

Simandjuntak, T.O., Rusmana, E., Surono, dan Supandjono, J.B., 1991. Geologi Lembar Malili, Sulawesi, skala 1:250.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.

Simandjuntak, T.O., Surono, dan Supandjono, J.B., 1991. Geologi Lembar Poso, Sulawesi, skala 1:250.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.

Surono, Simandjuntak, T.O., Situmorang, R.L., dan Sukido. 1994. Geologi Lembar Batui, Sulawesi, skala 1:250.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.

Simandjuntak, T.O., dan Barber, A.J., 1996. Contrasting tectonic styles in the Neogene orogenic belts of Indonesia, In: Hall, R., and Blundell, D.J., (Eds.), Tectonic Evolution of SE Asia. Geological Society of London Special Publication, 106:185-201.

Surono, 1996. Stratigraphic review of the Southeast Arm of Sulawesi, Eastern Indonesia. Proceedings Indonesian Association of Geologists (IAGI), Annual Convention.

Surono. 1998. Geology and Origin of the Southeast Sulawesi Continental Terrane, Indonesia. Media Teknik, No.3 Tahun XX Edisi Agustus.

Scholle, P.A., dan Ulmer-Scholle, D.S., 2003. A Color Guide to the Petrography of Carbonate Rocks: Grain, textures, porosity, diagenesis. AAPG Memoir, USA:77.

Spakman, W., dan Hall, R., 2010. Surface deformation and slab-mantle interaction during Banda Arc subduction rollback. Nature Geoscience, 3:562-566.

Wilson, J.E., 1975. Carbonate facies in geologic history: Springer-Verlag, New York: 471p.




DOI: http://dx.doi.org/10.32693/jgk.16.1.2018.535

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