Arizona Porphyries

Greenwood Peak


Greenwood Peak is a porphyry Cu-Mo project located ~24 kilometers southwest of the Bagdad mine, in western Arizona. Porphyry style alteration is exposed over 1 square kilometer and QSP veining and Laramide intrusive rocks display an ENE-WSW orientation, similar to the nearby Bagdad mine.

Mineralization consists of oxidized sulfide-bearing veins. Outcropping "leached capping" contains up to 5-7 vol% stockwork veining with 2-5 vol% oxidized sulfide sites. Laramide intrusions and volcanics are observed in an ENE-WNW belt that transects the Bagdad mine complex and trends towards the Greenwood Peak project area. The target is hypogene mineralization below chalcocite enrichment zone.

Note: The nearby mines and deposits in the region provide context for EMX's Project, but this is not necessarily indicative that the Project hosts similar mineralization, tonnages or grades.

The Greenwood Peak Cu-Mo project is available for partnership.


Simplified geologic map highlights the contact between Proterozoic basement and post-mineral Quaternary-Tertiary cover. Quartz-sericite-pyrite mineralization has a northeasterly orientation with alteration intensity vectoring toward post-mineral cover. The most intense alteration is offset by both down-to-the-east and down-to-the-west normal faults. Historic drill holes are shown as red circles, and labeled with collar ID, depth to bedrock, and total depth.


WSW-ENE cross section showing the porphyry system cut and offset by both down-to-the-east and down-to-the-west normal faults. Approximately 25° of southwesterly tilting accompanied the extensional faulting in this area, which results in a porphyry system that plunges steeply off to the NE.


Oxidized QSP vein surface from near the western limit of sericitic alteration.