Master of Science (Hons.)
Department of Geology
Soeharto, R. Simpwee, Gold and silver mineralization in sulphide vein deposits of the Cikotok area, West Java, Indonesia, Master of Science (Hons.) thesis, Department of Geology, University of Wollongong, 1987. http://ro.uow.edu.au/theses/2830
The Cikotok mineralization geologically and tectonically lies within the Tertiary volcano-magmatic belt of Java Island, and was affected by movement of the Tertiary, north-dipping Indian Oceanic plate which was subducted beneath the island arc. The gold-silver mineralization in the area is accompanied by base metal sulphides, and is hosted by a sequence of altered calc-alkaline volcanic rocks of the Oligo-Miocene Old Andesite Formation (comprising mostly andesites). The dominant forms of alteration to the host rocks include silicification, propylitization, carbonatization, sericitization, chloritization and argilitization.