Western completes second phase of exploration in Persada project
Friday, July 26 2013 - 06:14 AM WIB
ASX-listed Western Mining Network Ltd reported on Friday that the company has received assay results of the second phase of exploration for the semi detailed geological mapping, float rock chips samples, outcrops via rock chip sampling and trenching within the Persada projec, located northeast of Palu in Central Sulawesi, between Toli-toli and Buol, covering a 5,000 hectares total area.
The second phase of exploration has been undertaken as a follow up to previous Stream Sediment (SS) Exploration conducted in May 2013 which revealed anomalies for Au. Two prospective blocks were identified for additional exploration follow up; Block A ~480ha & Block B ~450ha.
The company in the statement said that several rock chip samples taken from either in situ outcrops or float were collected during geological mapping with a total of 16 selected samples were used for assay and 4 samples were used for spectrographic analyses of the mineralization and alteration.
All samples were analyzed by PT Intertek Utama Services. Rock samples were analyzed using Fire Assay for Au with detection limit at 0.01 ppm. Cold vapor AAS were used for Mercury (Hg) determination and ICP-OES method (Code: IC01) were used after aqua regia digest for Ag, As, Bi, Cu, Mo, Pb, Sb, Te & Zn.
The highest Au content is from float sample RF-009 (l.58g/t Au), followed by outcrop sample OC-010 (0.32g/t Au).The gold coincides with high arsenic in RF-009 (8,870ppm As) and OC-010 (5,420ppm As).
RF-009 is a mineralized float sample of hydrothermal breccia with disseminated pyrite from the Salutu River. OC-010 is from an outcrop of silicified sandstone with disseminated pyrite and arsenopyrite.
Editing by Adianto P. Simamora