Robust intersects high grade gold, silver at Romang project

Tuesday, February 8 2011 - 01:30 AM WIB

Australia-listed firm Robust Resources Limited said on Tuesday that assay results received from diamond drill hole LWD110 from its Lakuwahi project in Romang Island, East Nusa Tenggara, have revealed broad intersections of high grade gold, silver and sulphide mineralisation.

The combination of the grades and thicknesses of precious metals located near surface, and polymetallic suiphides intersected in this hole make it the most significant hole to be drilled on Romang Island to date, the company said.

LWD110 was extended to greater depth and drilling encountered a broad zone of very strong polymetallic sulphide mineralisation beneath the precious metals zone. The polymetallic zone included high-grade copper mineralisation assaying 2.64% Cu over 6 metres.

The results from this hole and existing drilling data has led to a refinement in the geological understanding of the Lakuwahi mineralisation and the recognition of distinctive flat-lying lithological controls on the formation of the crackle breccia-hosted mineralisation

Near Surface Gold-Silver Mineralisation, LWD110: 43 m @ 5.18 g/t Au Equivalent (4.63 g/t Au and 33 g/t Ag) from 2 m, including: 17 m @ 9.63 g/t Au Equivalent (9.08 g/t Au and 33 g/t Ag) from 15 m

Polymetallic Suiphide Mineralisation, LWD110: 76m @ 1.47% Cu Equivalent (0.29 g/t Au, 16 g/t Ag, 0.27% Cu, 1.77% Pb, 1.40% Zn) from 37m, including: 6m @ 5.09% Cu Equivalent (1.32 g/t Au, 107 g/t Ag, 2.64% Cu, 2.32% Pb, 0.63% Zn) from 38m, and

17m @3.31% Cu Equivalent (0.45 g/t Au, 22 g/t Ag, 0.91% Cu, 3.85% Pb, 3.07% Zn) from 42m

21m @0.97% Cu Equivalent (0.12 g/t Au, 6 g/t Ag, 0.12% Cu, 1.38% Pb, 1.21% Zn) from 126m

Managing Director, Gary Lewis, said: ?The result from LWD110 is of great significance beyond the recent drilling programme, which has consistently revealed broader, high grade precious and base metal intersections. Not only is it the richest hole Robust has drilled to date, but it also confirms and enhances our understanding of the structural and lithological controls on the mineralisation.

?This information is vital in the preparation of the geological and mineralisation model which underpins our mineral resource estimate, a current key focus for the Company.? (denny)

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