SOERIA-ATMADJA, Rubini and SUNARYA, yudi and SUTANT0, sutanto and HENDARYON0, hendar (1998) Epithermal gold-copper mineralization associated with Late Neogene-magmatism and crustal extension crustal extension in the Sunda-Banda Arc. GeoL. Soc. MaLaysiia, BuLLetin, 24. pp. 257-268.
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Abstract
Abstract: The majority of gold-copper mineralization along the Sunda-Banda arc belongs to lowsulfidation epithermal type. Studies by previous authors suggest that mineralization environment changes from low-sulfidation epithermal in the western segment of the arc, minor porphyry and highsulfidation epithermal to submarine stratiform deposit in the eastern region. It seems that the nature of geologic setting and magmatic evolution exert a profound influence on the mineralization environment. Most epithermal mineralization are hosted by stratovolcanoes and are associated with old caldera complexes controlled by strike-slip faults and graben subsidence. The present available K-Ar ages of mineralization suggest that the process is related to primarily Late Neogene volcanic eruption of fine silicic pyroclastics of calc-alkaline to potassic calc-alkaline affinity.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QE Geology |
| Depositing User: | sutanto sutanto - |
| Date Deposited: | 09 Aug 2017 07:40 |
| Last Modified: | 18 Aug 2017 05:50 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/12367 |
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