Spike E Hills, Arizona

Spike E Hills is a porphyry copper project located in southeastern Arizona approximately 10 km northwest of Wilcox. Nearby historic drilling identified sparse supergene copper mineralization near the outcropping advanced argillic alteration. Deeper exploration holes targeting hypogene mineralization routinely drilled into less intense alteration with depth.

A new structural model accounts for extreme post-mineral extension that was poorly understood by previous explorers. EMX is targeting well-mineralized (i.e. high sulfidation assemblages, supergene enrichment) portions of the dismembered porphyry system in fault blocks northeast of historic exploration.

Note: The drilling in the region provide geologic context for EMX’s Project, but this is not necessarily indicative that the Project hosts similar mineralization.


Historic drill information of Spike E Hills. Click to Enlarge
Normal faults and stratigraphic contacts projected under cover. Based on historic drill hole information Click to Enlarge
Cross section showing tilted porphyry system and identified targets Click to Enlarge