PERKEMBANGAN KERANGKA TEKTONIK LAUT MALUKU, KEPULAUAN BANGGAI – SULA DAN LAJUR OFIOLIT SULAWESI TIMUR
DOI:
https://doi.org/10.33332/jgsm.geologi.v15i2.62Abstract
Laut Maluku, bagian timur Sulawesi, dan Kepulauan Banggai – Sula merupakan tiga daerah yang saling berbatasan namun memiliki ciri kerangka tektonik yang berbeda. Laut Maluku merupakan zona tumbukan busur dengan busur, yang terletak di daerah pertemuan antara lempeng-lempeng Eurasia, Pasifik dan Filipina. Kepulauan Banggai - Sula merupakan benua renik pecahan dari Australia. Sesar-naik Sula di utara Banggai-Sula merupakan bagian selatan dari zona pensesaran berarah barat-timur selebar 30 – 40 km. Zona sesar ini diduga merupakan batas akhir bagian barat zona sesar Sorong yang tersingkap di bagian barat Papua. Sementara itu bagian timur Sulawesi dicirikan oleh adanya lajur ofiolit yang berasal dari pengalihtempatan atau obdaksi.
Kata kunci: Laut Maluku, Kepulauan Banggai – Sula, lajur ofiolit, obdaksi.
Downloads
References
Brookfield, M.E., 1977. The emplacement of giant ophiolite nappes. 1. Mesozoic – Cenozoic examples. Tectonophysics, 37: 247-303.
Christensen, N.I. & Salisbury, M.H., 1975. Structure and constitution of the lower oceanic crust. Reviews of Geophysics and Space Physics, 13: 57-86.
Coleman, R.G., 1971. Plate tectonoc emplacement of upper mantle peridotites among continental edges. J. Geophys. Res., 76: 1212-1222.
Fitch, T.J., 1970. Earthquake meachanisms and island arc tectonics in the Indonesian – Philippine Region. Bull. Seismol. Soc. Amer., 60: 565-591.
Gansser, A., 1974. The ophiolite melange, a world-wide problem on Tethyan examples. Eclog. Geolog. Helv., 67: 479-507.
Hamilton, W., 1973. Tectonics of the Indonesian Region. Geol. Soc. Malaysia. 6: 3-10.
Hamilton, W., 1977. Subduction in the Indonesian Region. American Geophysical Union, Maurice Ewing Series,1: 15-31.
Hatherton,T. & Dickinson, W.R., 1969. The relationship between andesitic volcanism and seismicity in Indonesia, the Lesser Anticlines, and other island arcs. J. Geophys. Res. 74: 5301-5310.
Lockwood, J.P., 1972. Possible mechanism for the emplacement of Alpine-type serpentinite. Geol. Soc. Am.Mem., 132: 273-287.
Maxwell, J.C., 1973. Ophiolite-old ocean crusts or internal diapirs? In Symposium on Ohiolites in Earth's Crust. , Moscow, Academy of Sciences of the USSR: 71-73.
Milsom, J., 1973. Papuan ultramafic belt : Gravity anomalies and empacement of phiolites. Bull. Geol.Soc. Am., 84: .2243-2258.
Milsom, J. & Richardson, A., 1976. Implication of the occurrence of large gravity gradients in northern Timor. Geol. Mijnb. 55: 175-178.
Moores, E.M., 1970. Ultramafics and orogeny, with models of the U.S. Cordillera and the Tethys. Nature Lond., 228: 837-842
Silver, E.A., Joyodiwiryo, Y. & McCaffrey, R., 1981. Gravity Results and Emplacement Geometry of the Sulawesi Ultramafic Belt, Indonesia. Geological Resources Development Center Spec. Publ. 2: 313-319.
Silver, E.A. & Moore, J.C., 1981. The Molucca Sea collision zone, Indonesia. In: Barber & Wiryosujono, The Geology and Tectonics of Eastern Indonesia, Geological Resources Development Center Spec Publ,:327-340.
Surono, 2010. Geologi Lengan Tenggara Sulawesi. Publikasi Khusus, Badan Geologi, KESDM, 16 h.
Visser, W.A. & Hermes, J.J., 1962. Geologic results of exploration for oil in the Netherlands, New Guenea. Verh. Kon. Ned. Geol. Mijnbow. Gen., Geologische Serie. 20, 265p.
Downloads
Published
Issue
Section
License
Authors who publish articles in Jurnal Geologi dan Sumberdaya Mineral (JGSM.Geologi) agree to the following terms:
- Authors retain copyright of the article and grant the journal right of first publication with the work simultaneously licensed under a CC-BY-NC or The Creative Commons Attribution–ShareAlike License.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)
