Target Concept
The main Tombstone District is famous as a host for high-grade silver / lead / zinc replacement bodies, fissures and veins that have yielded a historic production (1880’s to 1930’s) of over 30 million ounces of silver. The deposits are in Cretaceous carbonate rocks. The Cretaceous carbonate host rocks at Tombstone are underlain by Paleozoic carbonate rocks. Historic data suggests that productive stratigraphic horizons and structures similar to those in the main Tombstone District may be present on the Tombstone South Property.
Two exploration targets exist at Tombstone South:
1) Tombstone type polymetallic (silver / lead / zinc) carbonate replacement deposit in Cretaceous Bisbee group
2) Deeper polymetallic (silver / lead / zinc) type carbonate replacement deposit and skarns at the Cretaceous - Paleozoic contact. This horizon hosts the Taylor Deposit – the most successful recent Base Metal/Silver discovery of the last decade (sold in 2018 for USD 1.3B). The contact zone on Tombstone South, including its proximity to low grade porphyry copper deposits and high-grade silver deposits, presents a very favourable setting for Taylor deposit style mineralization.
The mineralization at the Taylor deposit is not necessarily indicative of the mineralization on the Tombstone Property.