PAMPA METALS CORPORATION Pampa Metals Corp. reported that diamond drillhole PIU-01 was completed at a downhole depth of 867m. First assay results are expected shortly.
Drillhole PIU 02, the second hole of the current program, has commenced. Hole PIU-01, designed to extend Cu-Au mineralization to depth on the southwestern margin of the Piuquenes Central porphyry, intersected a 160m zone of supergene copper enrichment between 220m and 380m downhole, coincident, and overlapping with primary mineralization from 350 meters. Strong primary mineralization associated with intense porphyry A type quartz stockwork veining is evident from 350m to approximately 650m.
From 650m to the end of hole at 867m quartz veining and mineralization continues, becoming progressively less intense with depth. From 830m disseminated hematite/specularite-pyrite-chalcopyrite mineralization is hosted in volcanic host rocks outside the porphyry intrusive and remains open at depth. PIU-02, the second hole of the current program is oriented on an east-west section proximal to two historical holes drilled by Inmet Mining Corporation which reported 413.5m at 0.47% Cu and 0.52 g/t Au and 67.5m at 0.63% Cu and 0.51 g/t Au respectively.
PIU-02 is designed to test the lateral extent of the Piuquenes Central porphyry mineralization, along the western margin of the deposit. Geology and Mineralization - Diamond Drillhole PIU-01: Moderate porphyry A-type quartz stockworks are present from approximately 150m downhole, increasing in intensity from 220m depth. Supergene copper enrichment is evident from 220m to 380m depth, partially coincident (from 288 m depth) with increasing intensity of porphyry A-type quartz vein stockworks and evidence of intermineral potassic alteration.
A narrow zone of copper oxides is observed from 220 - 229m downhole. Dense porphyry A-type quartz vein stockwork with chalcopyrite and traces of disseminated bornite mineralization hosted in potassic altered diorite porphyry was intersected from 350m to approximately 650 m. From 650m to approximately 740m downhole a zone of moderate intensity quartz veining was intersected, prior to a zone of sporadic quartz veining which remains open at 867m (EOH). From 730m intermediate argillic alteration is present, and molybdenite, sphalerite and hematite/specularite associated with grey sericite-chlorite veining and fine-grained disseminated chalcopyrite-bornite.
From 830m the host-rock is volcanic, superimposed by sericite-chlorite alteration and disseminated hematite/specularite-pyrite-chalcopyrite mineralization, veining and breccias.
