Geology of san nicolas14 Mar 2019 09:22
https://www.eoas.ubc.ca/ubcgif/iag/casehist/sannic/geology/geol-frameset.htm
San Nicolás, owned by Teck Corporation and Western Copper Holdings Ltd., is an un-mined, volcanic hosted, massive sulphide deposit containing ore-grade copper and zinc with associated gold and silver. The reserve estimates are 72 million tonnes grading 1.4% copper and 2.27% zinc, making it the largest massive sulphide deposit yet discovered in Mexico, and a world class deposit.
A bit old but gives an indication of what Donovan 2 could be like.
Field mapping and sampling identified the presence
of pathfinder minerals, including anomalous values of copper and zinc which are
consistent with the presence of volcanogenic massive sulphide ("VMS")
mineralisation.