Regional Geology
The
Jampang Prospect is dominated by sediments of Tertiary age in the western half
of the property and Tertiary "old volcanics" in the east. The
tertiary age sediments are composed of limestones, marls, calcareous tuffs,
sandstones and conglomerates and minor intercaleted tuffs and lavas. The
"Old Volacanics" consist of Palaeocene ages andesites and decites. A report
prepared by PT Aneka Tambang also notes the occurrence of argillic and
propylitic alteration. This type of hydrothermal alteration is often associated
with epithermal gold and base metal mineralisation. The presence of quartz
veins and silification within the KP application may be associated with
epithermal style gold and base metal mineralisation.

Geological Map Jampang
Area
The
above geology map of Jampang shows major north and west-north-west structure.
At the prospect scale the major structure in the western part of the property
is an anticlinal fold with the fold axis trending east-west. Brittle structures
generally trending north to north-east and east-west are found in the western
part of the property. Any structures in the eastern part of the KP would tend
to be obscured by Quarternary volcanic activity.
Location, Access,
Topography, Vegetation and Climate
The
property is located about 185 km south of Jakarta on the western side of Java, a journey of between 3 and 4 hours.
Access to the property is via sealed roads and the property is served by grid
electric power, land-line and fax communication. More inaccessible areas can be reached on dirt road by
motorcycle, walking tracks and four wheel drive where the tracks are wide enough.
River valleys offer resonable walking access and good rock outcrop exposure.
(See Location of the Kp application on the picture 3).
The
property is situated on the southern edge of the Jate-Miocene to Pliocene-aged
Sunda-Banda arc. Gold has been or is being mined at numerous sites within this
volcanic arc. There are a number of gold mines within a 100 km radius of
Jampang (Cikotok, Cikidang, Cikondang, Gunung Ponkor) but there has been no
formal, organised mining at Jampang. However, prior to 1950 the Dutch explored
parts of this property by underground edit development and in recent years
local miners have been actively mining shallow, soft oxidised mineralisation
via a maze of small shafts and tunnels. Their mining is restricted to the
ground above the water table.
Most
of the property has been cleared for agricultural purposes with secondary
forest growth predominant in the areas not being utilised. Minor primary
rainforest can be found in the northern part of the property. Tea plantations
and pine forest plantations can also be found in the area.