Pustaka Ilmiah Universitas Padjadjaran

Abstrak

Gold Mineralization Characteristics of Cikoneng vein of the Cibaliung Gold Deposit in Western Java, Indonesia

The Cibaliung deposit is located in Pandeglang, Banten Province, Western Java, Indonesia. The western part of Java is known as one of the richest gold producing areas, for examples, there are former gold mine in Cikotok, Cirotan, Ciawitali, Cikidang and active gold mine in Pongkor. They are all situated in the Bayah dome, a Teriary-Quaternary volcanic structure, and classified as low-sulfidation type epithermal gold deposits. The Cibaliung gold deposit is approximately 70 km west of Bayah dome and it is located in Honje igneous complex. The deposit has many ore shoots, and the main ore shoots are Cikoneng and Cibitung. All shoots have NW trend. The Cibaliung gold deposit is older than any other deposit in Western Java. This is because younger volcanic deposits such as the Citeluk tuff and the Cibitung tuff most probably prevented this erosion (Harijoko et al., 2007). According to the previous study, the gold prospects in Cibaliung occur within a NW-trending structural orridor that is 3.5km wide by at least 6km long. Two aligned NNW-trending sub-vertical shoots, Cikoneng and Cibitung, host the currently defined resource within the steeply dipping vein system (Angeles et al., 2002).