| Penulis/Author |
Ir. Pri Utami, M.Sc.,Ph.D., IPM. (3); Prof. Dr. Ir. Subagyo Pramumijoyo, DEA., IPU. (4); Dr. Ir. Agung Harijoko, S.T., M.Eng., IPM. (5) |
| Abstrak/Abstract |
Flores Island is located in Indonesia, at the southernmost of Sundaland that stretches from Sumatra to Flores, and which is the most complex part
of the Sundaland. Flores Island is part of a volcanic arc in an active continental margin, straddling between Sunda Arc and Banda Arc. This specific location is overlying the boundary of accretion, that has undergone various process including; rifting, drifting and subduction, in the Late Cretaceous and Early Miocene. An additional interest of Flores Islands lies
in the transition from a subduction of the IndoAustralian oceanic crust to the west to the Australian continental plateau to the east. The subducted
Australian continental crust has an effect on the geometry of the tectonic in the volcanic arc and for the purpose of this work on Flores Island.
The formation of Flores Island is the result of this evolution and variability of both the composition and tectonic that has brought the shape we can observe and measure today. The high volcanism activity on the Flores Island also coincides with the most important structure of the island. In this work we present the results the first step of the analysis, which focuses on obtaining a better understanding of the tectonic setting of Flores Island magmatic occurrences, and lithospheric structures, and their effect and control on
magmatism for geothermal energy exploration. Available geological, geophysical, and geochemical data suggest that Flores can be divided into several regions that have a different geothermal signature and potential. The geothermal potential on western-half of Flores Island are located on the Tertiary – Quaternary volcanism, while the eastern-half of Flores are located
on the Quaternary volcanism, which are associated with faults, post-volcanic features, and caldera structures. |
