The Cerro Quema Au-Cu deposit is hosted by a dacite dome complex of the Río Formation, Late Campanian-Maastrichtian volcano-sedimentary sequence Panamanian magmatic arc. Its formational age constrained at ~49 Ma field evidences, crosscutting relationships and 40Ar/39Ar geochronology (Corral et al., 2016, Corral, 2021). recent molybdenite Re-Os dates Perelló al. (2020) claim that ore spatially t...

metres north of Stewart, British Columbia. Reserves calculated in 1989 by the previous owner, Western Canadian Mining Corporation. are 66 million tonnes averaging 0.8 per cent copper and 0.33 gram per tonne gold using a 0.5 per cent copper cut off, Access to the deposit is by helicopter from Tide Lake airstrip 50 kilometres north of Stewart. The deposit was diamond drilled extensively by West...

The Hongniu-Hongshan porphyry-skarn deposit is located in the southern Yidun terrane Sanjiang Tethyan Metallogenic Domain (STMD). Although its metallogenesis has been well constrained past decade, magmatic processes for granitoids are still poorly understood. Herein, we provide new geochemical data on minerals (plagioclase, amphibole, and clinopyroxene) to get a better insight into these proces...

1. Introduction Thompson-Okanagan-Cariboo is an administrative region in south-central BC, established after the province reorganized its natural resource agencies in 2010. Mining predates Confederation and today, the region is home to fi ve of BC's largest metal mines, several industrial mineral mines, and many small placer operations, gravel pits, and rock quarries. power), and skilled worker...

Un der ground mass min ing tech niques have en abled prof it able ex trac tion of the deep por tions of por phyry de pos its at minesites world wide. Of ten con sid ered a rel a tively new in no va tion, block cav ing was orig i nally de vel oped for cop per min ing in Utah in 1906 (Barger and Schurr, 1944). Ex am ples of block cave min ing of cop per por phyry de pos its in clude the re cently...

In order to improve our understanding of the mineral potential of northern Vancouver Island beyond the wellknown intrusion-related Cu-Au-Ag(-Mo) porphyry deposits (e.g., Hushamu, MINFILE 092L 240 and the former Island Copper mine, MINFILE 092L 158) and base and precious-metal skarns (e.g., Merry Widow, MINFILE 092L 044), we need a better understanding of the stratigraphy of the Bonanza island a...