Isy Project, Peru
AVAILABLE FOR JV
High sulphidation epithermal gold and silver target available for option in the Ayacucho Department of southern Peru. Limited exploration has identified high level epithermal-style quartz veining with anomalous silver and gold mineralization, clay alteration, silicification and anomalous pathfinder element geochemistry (Hg, Sb, As).
The textural and chemical characteristics of the veining observed to date indicates that the upper levels of an epithermal system are present at ISY. Future exploration will aim to confirm this and identify drill targets at depth where precious metals mineralization may be preserved.
The Isy Prospect is a high sulphidation epithermal gold and silver prospect located in the Ayacucho Department of southern Peru. The property lies approximately 110 km east of Ica, Peru, in the Miocene-Pliocene volcanic sequence of the Southern Peruvian Tertiary Volcanic Belt, host to world-class high sulphidation epithermal deposits. The 3,100 Ha property is road accessible at elevations of 4,000 to 4,200 metres.
Reconnaissance exploration including prospecting and sampling yielded coincident Hg, Sb, As anomalous pathfinder geochemistry and elevated gold (detection limit to 0.54 g/t) and silver (detection limit to 83.8 g/t) from 100 rock samples.
A 2016 program was undertaken to augment previous work (conducted in 2010 and 2011). This earlier work identified veins anomalous in silver and gold with highly anomalous epithermal-suite metals at the Patacancha and Jello Orcco targets. The 2016 program focused on geological and structural mapping of the property at 1:10,000 scale with detailed 1:2,000 scale mapping in the Jello Orcco area. Additional geochemical soil and rock sampling was completed in conjunction with the mapping program. A total of 114 samples were submitted for analyses, including 21 soil samples, 88 rock samples and 5 control standards.
At the Jello Orcco target, exploration work resulted in the identification of multiple sets of banded, brecciated and massive silica veins generally 0.4 to 1.5 metres in width (maximum 9 metres) over a 2.7 km open-ended trend. Veining is hosted within ash, lapilli and andesite flow volcanic rocks and veins contain silica> kaolinite>barite>alunite> goethite>pyrite. The longest vein mapped is approximately 500 metres in length. Vein samples are elevated in arsenic, mercury and antimony with silver and gold showing the strongest relationship to mercury. This geochemical signature and clay alteration assemblage (verified by X-Ray Diffraction analysis) indicates that veining at surface is high level and likely represents the upper portions of a large epithermal system. Future programs at the Jello Orcco target will focus on identifying gold and silver mineralization at depth.
The Patacancha target is a 250 metre by 400 metre area of locally vuggy massive silica, brecciated silica and stockwork silica veinlets. Samples anomalous in silver and gold are elevated in mercury, arsenic and antimony. Detailed structural mapping indicates that the Patacancha target may be related to the Jello Orcco target, approximately two kilometres to the south. Further work will be necessary to determine the relationship between the two target areas.
The Next Steps
Alianza is seeking a partner to conduct further geochemical sampling (rock and soil), detailed mapping and possibly geophysical surveys to advance the project towards drilling.