A view of the Halmahera volcanic arc looking south. From the nearest to farthest: Ibu, Gamkonora, Todoko-ranu, Jailolo, Gamalama, Tidore. May 2000 - Photograph copyrighted and provided by Bruce Gemmell, University of Tasmania.

Geologic map of Halmahera, Indonesia. Map copyrighted and provided by Grant Davey and Dan Olberg, Senior Geologist, PT Nusa Halmahera Minerals.

Dukono Gamalama, Ternate Island
Gamkonora Ibu
Jailolo Kiematabu, Tidore Island
Makian Island Moti

Sources of Information:

Carlile, J.C., Davey, G.R., Kadir, I., Langmead, R.P., and Rafferty, W.J., 1998, Discovery and exploration of the Gosowong epithermal gold deposit, Halmahera, Indonesia: Journal of Geochemical Exploration, v. 60, p. 207-227.

Kusumadinata, K., 1977, Data on the Dukono volcano; Berita Direktorat Geologi, v. 9, no. 16, p. 183.

McClelland, L., Simkin, T., Summers, M., Nielsen, E., and Stein, T.C., 1989, Global Volcanism 1975-1985: Englewood Cliffs, New Jersey, Prentice Hall, 655 p.

Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.

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