Release: Oropa: Drilling reveals high grade gold zone at Sambung prospect

Oropa is pleased to announce further encouraging drilling results from its Sambung prospect, North Sumatra, Indonesia.

The completion of over 5000m of diamond drilling at Sambung by Oropa has enabled the exploration team to complete detailed geological modelling of the central portion of the Sambung prospect.

Better recent intersections include:
SAMDD054: 25m @ 2.84 g/t Au from 15m (including 6m @ 8.77 g/t Au from 23m)
SAMDD055: 24m @ 3.25 g/t Au from 14m
SAMDD056: 8m @ 8.66 g/t Au from 35m (including 3m @ 20.85 g/t from 35m)
SAMDD059: 10m @ 3.40 g/t Au from 48m
SAMDD061: 8m @2.60 g/t Au from 0m; 21m @ 5.36 g/t from 27m

Modelling indicated the presence of a core zone of high grade gold mineralisation, which was tested by the completion of holes SAMDD054, 55, 56, 59 and 61; all of which intersected strong zones of gold mineralisation within predicted zones. Additional holes were designed to close off mineralisation on selected drill sections.

Gold mineralisation at Sambung predominantly occurs as a blanket of shallow-dipping siliceous jasperoid that formed at or near the unconformity contact between older Permian limestone and younger Tertiary sediment.

Mapping, drilling and geological interpretation strongly suggested the presence of a high grade primary ?feeder zone? of gold mineralisation that had until now remained elusive or unrecognised.

High grades discovered in these recent holes are associated with a structurally-controlled jasperoid hydrothermal breccia, dipping steeply back towards the south west and trending north west.

Additional diamond drilling will test the down dip extent of this mineralised zone and will also endeavour to follow the strike extent of the structure beyond late - stage cross cutting faults that disrupt the sequence.

Oropa is advancing exploration activities at Sambung towards the completion of a preliminary resource calculation this quarter. Step-out drilling will also be undertaken to assess the strike extent of identified jasperoid gold mineralisation towards grid east. (end of release)