Sonoma drill-tests Argentine copper-gold project

A 10-hole program of diamond drilling is enabling Sonoma Resource (SNA-V) to test the Cerro Toro project in Argentina.

Believing a copper-gold porphyry system exists at depth, the junior is focusing its drilling efforts on two zones: the Central and South.

Six holes are planned for the Central zone, where 10 metres of trench sampling returned 1.2 grams gold and 125 grams silver per tonne.

Four holes will be drilled at the South zone, where trench sampling returned 0.75% copper and 2.2% zinc over 14 metres. At both zones, holes will be drilled to a depth of about 200 metres.

Another 850 rock chip samples have been collected through bulldozer trenching.

Exploration is also under way at the 30,000-ha Castano claim group in the northwestern province of San Juan, where drilling and geophysical work have yet to encounter any significant mineralization.