Project Analogues

Sombrero Cluster Scale Comparison to Las Bambas

The Sombrero Project shares geological similarities with the world-class Las Bambas deposit in Peru. Both feature large exoskarn alteration zones occurring within similar rock types, and caused by similar aged intrusions. However, at Sombrero, a layer of volcanic cover is more pronounced compared to Las Bambas.

Similar to Las Bambas, which consists of a cluster of deposits such as Sulfobamba, Chalcobamba, and Ferrobamba, the Sombrero Project also has a promising cluster of targets, including Good Lucky, Ccascabamba, and Nioc, where exoskarn is exposed, suggesting significant potential for a similar mineral discovery across the cluster.

Sombrero Project vs. Tintaya Open Pit Porphyry-Skarn Copper-Gold Mine

The Ccascabamba target at the Sombrero Project shows a striking geological analog to the Tintaya deposit. Tintaya features a skarn formation surrounding an intrusive body, forming a distinct “moat” shape. Magnetic surveys at Ccascabamba reflect this configuration and suggest a comparison to Tintaya, a world-class open-pit porphyry-skarn copper-gold deposit. This configuration makes Ccascabamba a highly promising target.

Eocene-Oligocene Aged Copper-Gold Deposits Throughout the Belt

The Company has confirmed that the age of the intrusives within the Sombrero district are equivalent to those of several major deposits to the east, in the Andahuaylas-Yauri belt. This places the mineralization within the same Eocene-aged metallogenic event that produced world-class deposits such as Las Bambas. It also establishes that the belt extends over 100 kilometres to the west, where the Sombrero Project is located.

Multiple Eocene-Dated Mineralized Intrusions at Sombrero

Based on results from five uranium-lead samples obtained from diorite sills at the Ccascabamba and Nioc targets, ages range from 38.85 to 40.47 million years. This is the same age of mineralization as Las Bambas, MMG: ~37.9 Ma¹; Tintaya, Glencore: 38-35 Ma²; and Antapaccay, Glencore: ~35.7 Ma³.

1. Porphyry-Style Alteration and Mineralization of the Middle Eocene to Early Oligocene Andahuaylas-Yauri Belt, Cuzco Region, Peru, Economic Geology, Vol. 98, 2003. Pg 1575-1605 ↩︎
2. The Eocene Coroccohuayco and Tintaya Copper Porphyry-Skarn Deposits, Peru: 5 Ma of Favourable Tectono-Magmatic Evolution, Metadatos INGEMMET, Pg 2 ↩︎
3. High-Resolution Geochronology of the Coroccohuayco Porphyry-Skarn Deposit, Peru: A Rapid Product of the
    Incaic Orogeny. Society of Economic Geologists, Inc., Economic Geology, v. 110. Pg 423-443 ↩︎

The Company has confirmed that the mineralizing intrusives at the Ccascabamba and Nioc target areas within the Sombrero Project occurred within the same Eocene era as the world-class mines on the belt.