• B. Setyanta Pusat Survei Geologi
  • I. Setiadi Pusat Survei Geologi



Volcanic arc in Maluku Sea area with relative north-south trend, in the North Arm of Sulawesi consists of Taguladong, Biaro, Bangka, Sangihe islands, and west part of Halmahera are Ternate, Makian, Kayoa and Tidore islands. Bouguer anomaly in this area shows the line patterns that trend to be north-south, in same direction of the pattern of the regional geological structures with the anomaly value range (-100 mGal until 260 mGal). Gravity modelling analysis indicate the presence of subduction beneath the islands of Halmahera is tilted to the east with a steep, while in the western part which is below the north arm of Sulawesi is not visible. Structure pattern of gravity analysis show strike slip fault system in the west part, and thrust fault in the east part that controlling volcanism activity in this area.



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Apandi, T dan Sudana, D., 1980. Peta geologi lembar Ternate, Maluku Utara. skala 1 : 250.000, PPPG, Bandung.

Bowin, C.O., Warsi, C. and Milligan, J., 1981. Free Air Anomali Atlas of the world. Government Printing Office, Washington DC, USA.

Cady, J.W., 1980. Calculation of gravity and magnetic anomalies of finite-length righ polygonal prism. Geophysics, 45 (10), pp 1507-1512.

Cardwell, R.K. and Isacks, B.L., 1979. Geometry of the subducted lithosphere beneath the Banda Sea in Eastern Indonesia from seismicity and fault plane solutions. Journal of Geophysical Research, 83, B6, 2825-2838.

----------, Isacks, B.L. and Karig, D.E., 1980. The spatial distribution of earthquakes, focal mechanism solutions and subducted lithosphere in the Philippine and northeastern Indonesia. In Hayes (eds.). The tectonic and geologic evolution of South-East Asian seas and islands, American Geophysica Union, Monograph 23.

Dasuki, R., 1992. Kegiatan Gunungapi Karangetang (Api Siau), Sulawesi Utara. Jornal Geologi dan Sumberdaya Mineral,No 11, vol II,.PPPG, Bandung. hal 12-16.

Effendi, A.C. dan Bawono, S.S., 1997. Peta geologi lembar Manado, Sulawesi. skala 1 : 250.000, PPPG, Bandung.

Fauzi, R.M., Puspito, N.T., Ibrahim, G. dan Gunawan, M.T., 1999. Deformasi lapisan kerak dan slab di Laut Banda berdasarkan seismisitas. Prosiding Himpunan Ahli Geofisika Indonesia, PIT XXIV, Surabaya Oktober1999, hal. 68-72.

Hamilton, W., 1979. Tectonic of Indonesia Region, Geol. Sur.Prof. Papers US, Govt. Print. Off. Washington DC.

Katili, J.A., 1978. Past and presen geotectonic position of Sulawesi, Indonesia. Tectonophysics, v.45, pp. 289-322.

McCaffrey, R. and Silver, E.A.,1980. Crustal structure of the Molucca Sea collision zone, Indonesia, In Hayes (eds.). The tectonic and geologic evolution of South-East Asian seas and islands, American Geophysical Union, Monograph 23, 161-177.

----------, Sutardjo, R., Susanto, R., Buyung, N., Sukarman, B., Husni, M., Suciono, Satuju, D. and Sukamto, R., 1983. Micro-earthquake Surveys of the Molucca Sea and Sulawesi, Indonesia. Bulletin of the GRDC, no. 7, March 1983, pp. 13-23.

Nasution, J. dan Hayat, D.Z., 2007. Peta Anomali Bouguer Lembar Ternate, Maluku. skala 1 : 250.000, Pusat Survei Geologi, Bandung.

Sardjono, 1999. Gravity field and structure of the Crust of the Banggai Islands Region, Eastern Indonesia implications for tectonics and hydrocarbon prospects. Jurnal Geologi dan Sumberdaya Mineral, v.IX, hal. 16-29.

Simanjuntak, T.O., 1993. Neogene Plate Convergence in Eastern Sulawesi. Jurnal Geologi dan Sumberdaya Minera, no. 25 v. VIIIm DGSDM, Bandung.

----------, and Barber, A.J., 1996, Contrasting tectonic styles in the Neogene orogenic belt of Indonesia, In : Hall, R. & Blundell, D.J. (eds). Tectonic evolutions of South East Asia, Geological Society Special Publ. 106, 185-201.

Silver, E.A., 1979. The tectonics of the Eastern Indonesian Region : A Highlight, the GRDC Bull., n. 2, Dec., 1979, pp. 1-5.

Sobari, I, Simamora, W.H. dan Sardjono, 1992. Peta Anomali Bouguer Lembar Manado, Sulawesi Utara. skala 1 : 250.000, PPPG, Bandung.

--------. dan Siagian, H.P., 2006. Peta Anomali Bouguer Lembar Talaud dan Mayu, Sulawesi. skala 1 : 250.000, Pusat Survei Geologi, Bandung.

--------., Nasution, J., Siagian, H.P., Budiman, I., Hayat, D.Z., Simamora, W.H., Widijono, B.S., Rahardjo, D.N. dan Taufan, Y.A., 2009. Peta Cekungan Sedimen Indonesia berdasarkan anomali gaya berat. Badan Geologi, Departemen ESDM RI.

Sudradjat, A., 1989. Forcasting and mitigation of geologic hazard in Indonesia, Geologi Kuarter kaitannya dengan bencana alam. Publikasi Khusus no. 8, PPPG, Bandung.

Sukamto, R., 1989. Tectonic sidnificance of melange on the Talaud Islands, northeastern Indonesia. Proceedings 16th Regional Cong. On Geol. Min. and Hydrocarb. Res. of Southeast Asia, Jakarta, Indonesia, 24 pages.

--------, & Suwarna, N., 1986. Peta geologi lembar Talaud, Sulawesi. skala 1 : 250.000, PPPG, Bandung.

--------, Apandi, Supriatna, S. And Yasin, A., 1981. The geology and tectonic of Halmahera Island and surrounding areas, In : The Geology and Tectonics of eastern Indonesia, A.J. Barber & S. Wiryosujono (eds.), GRDC Spec. Publ., no. 2, pp 259-372.

Supriatna, S.,1980. Peta geologi lembar Morotai, Maluku Utara. skala 1 : 250.000, PPPG, Bandung.

Suria Atmadja, R. and Sukamto, R., 1979. Ophiolite rocks association on Talaud Islands, East Indonesia. Bulletin of the GRDC, no. 1, March 1979, pp. 17-35.

Susilo, A dan Nainggolan, D.A., 2007. Peta Anomali Bouguer Lembar Morotai, Maluku. skala 1 : 250.000, Pusat Survei Geologi, Bandung.

Watt, A.B., Bodine, J.H. and Bowin, C.O., 1978. A Geophysical atlas of the east and southeast Asian Seas- Free Air Gravity Field. The geological Society of America Inc., 3300 Penrose Place Brothers, Colorado.