Munasri Munasri


Abstract The Mesozoic basement complex in South Sulawesi, Indonesia, is exposed in two areas near Bantimala and Barru, known as the Bantimala Complex and the Barru Complex. The complexes consist of metamorphic, ultramafic and sedimentary rocks. Part of these rocks was chaotically mixed to form a mélange. Early Cretaceous (Valanginian to Barremian) radiolarians were extracted from manganese carbonate nodule embeded in dark reddish shale of the Barru Complex. Previously middle Cretaceous (late Albian to early Cenomanian) radiolarian assemblage was reported found in chert and siliceous shale of the Bantimala Complex.The hemipelagic dark reddish shale with manganese carbonate nodule of the Barru Complex are considered to have been deposited in Early Cretaceous time (Valanginian to Barremian) and accreted at the subduction trench during late Early Cretaceous (Aptian) time.Based on radiolarian data, it is considered that the Barru and Bantimala Complexes were not derived from single accretionary complex as previously regarded.


Radiolaria, Manganese Carbonate, Early Cretaceous, Barru Complex, South Sulawesi.

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Aita, Y. and H. Okada, 1986. Radiolarian and calcareous nannofossils from the uppermost Jurassic and Lower Cretaceous strata of Japan and Tethyan regions, Micropaleontology, 32(2), 97-128, pls 1-8.

Arakawa, R., 1998. Middle Jurassic Radiolaria assemblages from manganese dioxide nodules, Kuzuu area, of Ashio terrane, central Japan. Bulletin of the Tochigi Prefectural Museum 15, 51-76 (in Japanese with English abstract).

Baumgartner, P.O., A. Bartolini, E.S. Carter, M. Conti, G. Cortese, T. Danelian, P. De Wever, P. Dumitrica, R. Dumitrica-Jud, S. Gorican, J. Guex, D. M.Hull, N. Kito, M. Marcucci, A. Matsuoka, B. Murchey, L. O’Dogherty, J. Savary, V. Vishnevskaya, D. Widz and A. Yao, 1995. Middle Jurassic to early Cretaceous radiolarian biochronology of Tethys based on Unitary Associations. In: Baumgartner, P.O., L. O’Dogherty, S. Gorican, E. Urquhart, A. Pillevuit, and P. De Wever, (Eds.), Middle Jurassic to Lower Cretaceous Radiolaria of Tethys: Occurrences, Systematics, Biochronology. Me´moires de Ge´ologie, (Lausanne) 23, 1013-1048.

Hasan, 1991. The Upper Cretaceous Flysch succession of the Balangbaru Formation, Southwest Sulawesi, Proceedings Indonesian Petroleum Association, 20th Annual Convention, pp. 183-208.

Hattori, I., 1993. Diagenetic modification of radiolarians in a chaotic Jurassic sedimentary sequence of Mino Terrane, Central Japan, In: Blueford, J. R. and Murchey, B., eds., Radiolarian of giant and subgiant field in Asia, Nazarov memorial volume, Micropaleontology press Spec. Publ., 6,137-152, pls 1-5.

Hattori, I., 1988. Radiolarian fossils from manganese nodules at the upper reach of the Tarumigawa in the Nanjo Massif, Fukui Prefecture, central Japan, and the tectonic significance of the northwestern Mino terrane. Bulletin of the Fukui Municipal Museum of Natural History 36, 47-134 (in Japanese with English abstract).

Hori, N. and K. Wakita, 2006. Early Jurassic (late Aalenian) radiolarian assemblage in a manganese nodule from the Northern Chichibu Belt in the Ino area, Kochi Prefecture, Southwest Japan, Journal of Asian Earth Science 27, p. 45-60.

Jasin, B. and N.S. Haile, 1996. Uppermost Jurassic-Lower Cretaceous radiolarian chert from the Tanimbar Islands (Banda Arc), Indonesia, J.South East Asia Earth Sci, Vol. 14, No. 1/2, pp. 91-100.

Maulana, A., D. J. Ellis, A. G. and Christy, 2010. Petrology, geochemistry and tectonic evolution of the south Sulawesi basement rocks, Indonesia, Proceeding Indonesian Petroleum Association, 34th Annual Convention and Exhibiton, pp. 192-215.

Okamoto, S., S. Kojima, S. Suparka, and J. Supriyanto, 1994. Campanian (upper Cretaceous) radiolarians from a shale clast in the Paleogene of central Java, Indonesia, J.South East Asia Earth Sci., vol. 9, no. 1-2, p.45-50.

Pessagno, E.A., Jr. and R.L. Newport, 1972. A technique for extracting Radiolaria from radiolarian cherts, Micropaleontology, 18 (2) 231-234, pl. 1.

Pessagno, E.A., Jr., 1977. Lower Creatceous Radiolarian Biostratigraphy of the Great Valley sequence and Francisican Complex, California Coast Ranges, Cushman Found. Foram. Res., Spec. Publ., 15, 1-87.

Sanfilippo, A. and W.R. Riedel, 1985. Cretaceous Radiolaria, In Bolli et al., eds., Plankton Stratigraphy, Cambridge University Press, 573-630.

Sashida, K., S. Adachi, K. Ueno, and Munasri, 1996. Late Triasic radiolarian from Nefokoko, West Timor, Indonesia, In: Noda, H. and Sashida, K., eds., Prof. H. Igo Commem. Vol., p.225-234, Gakujyutsu Tosho Insasatsu Co.

Sashida, K., Munasri, S. Adachi, and Y. Kamata, 1999a. Middle Jurassic radiolarian fauna from Rotti Island, Indonesia, Journal of Asian Earth Science 17, p. 561-572.

Sashida, K., Y. Kamata, S. Adachi, and Munasri, 1999b. Middle Triassic radiolarian from West Timor, Indonesia, Journal of Paleontology 73, p. 765-786.

Soesilo, J., E. Suparka, C. I. Abdullah dan V. Schenk, 2010. Pemetaan inklusi di dalam garnet tekanan tinggi pada Kompleks Melange Bantimala, Sulawesi Selatan, Majalah Geologi Indonesia, vol. 25 no. 3, 143-159.

Sopaheluwakan, J., 1979. The evolution of Franciscan-typemélange in south Sulawesi, with reference to the Barru area, RISET, J. 2, 1. 45-55.

Sukamto, R.,1986. Tectonic of South Sulawesi with special rference of characteristics of rock association in Bantimala area. PhD thesis, Institute of Technology Bandung.

Sukamto, R., 1982. Geologic map of the Pangkajene and western part of Watampone quadrangles, Sulawesi, and its explanatory note (27 p), 1 : 250.000 Series, Geol. Res. Dev. Centre, Bandung.

Sukamto, R., 1978. The structure of Sulawesi in the Light of Plate Tectonics. Proceedings of the Regional Conference on Geological and Mineral Resources, SE Asia, pp. 121-141.

Sukamto, R., 1975. Geologic map of Indonesia, Ujung Pandang Sheet (scale 1 :1.000.000), Geological Survey Of Indonesia.

Tan Sin Hok, 1927. Over de samenstelling en het onstaan van krijt-en mergelgesteenten van de Molukken, in: Brower, H.A. (ed) Jaar. Mijn. Ned.-Oost-Inie, Jaarg. 1926, Verhandl., (part3), 5-165.

Tumanda, F.P., 1989. Cretaceous radiolarian biostratigraphy in the Esashi Mountain area, Northern Hokaido, Japan, Sci. Rep., Inst. Geosci. Univ. Tsukuba, Sec. B., 10, 1-44. pls 1-10.

Wakita, K., Miyazaki, K., Zulkarnain, I., Sopaheluwakan, J. and Sanyoto, P., 1998. Tectonic implications of new age data for the Meartus Complex of south Kalimantan, Indonesia, The Island Arc (1998) No. 7, p. 202-222.

Wakita, K., J. Sopaheluakan, K. Miazaki, I. Zulkarnain and Munasri, 1996, Tectonic evolution of the Bantimala Complex, South Sulawesi, Indonesia,In Hall, R. and Blundell, D. eds., Tectonic evolution of Southeast Asia, Geol. Soc. London, Spec. Publ., No.106, 353-364.

Wakita, K., Munasri, J. Sopaheluakan, I.Zulkarnain and K. Miazaki, 1994b. Early Cretaceous tectonic events implied in the time-lag between the age of radiolarian chert and its metamorphic basement in Bantimala area, South Sulawesi, Indonesia, The Island Arc, 3, 90-102.

Wakita, K., Munasri, and Widoyoko Bambang, 1994a. Cretaceous Radiolarians from the Luk Ulo Melange Complex in the Karangsambung Area, Central Java, Indonesia, J.South East Asia Earth Sci, Vol. 9, No. 1/2, pp. 29-34.

Yao, A., 1979. Radiolarian fauna from the Mino belt in the northern part of the Inuyama area, Central Japan. Part II : Nassellaria 1. J. Geosci., Osaka City Univ., 22, pp. 21-72.

Yao, A., 1972. Radiolarian fauna from the Mino belt in the northern part of the Inuyama area, Central Japan. Part I: Spongosaturnalids. J. Geosci., Osaka City Univ., 15, pp. 2164.

DOI: http://dx.doi.org/10.14203/risetgeotam2013.v23.71


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