Come By Chance – Gold-Copper
Targeting a Large Copper-Gold Porphyry
“When we originally optioned the CBC property last year, we believed we were acquiring a major copper-gold skarn property similar to the copper-gold skarns of the nearby Phoenix Mine which produced over 500 million pounds of copper and over 1 million ounces of gold.
It was only when we flew a low level magnetic survey over the property did we realize that we may have something much bigger than we had originally bargained for – a copper-gold porphyry as well, which is likely linked to the skarn zone.
This is potentially the first copper-gold porphyry system detected in the Greenwood mining camp which is considered to be one of the most concentrated mineralized areas in British Columbia.”
George Sookochoff, President & CEO, Belmont Resources.
Belmont Resources’ Come By Chance property is located three kilometres northwest of Grand Forks and three kilometres southeast of the past productive Phoenix mine in the southern Interior of British Columbia, Canada.
Although the Phoenix mine was the major producer, some of the smaller mines were also productive from a number of different types of deposits. From 1900 to 1975 production from these 26 principal mines was, in addition to a significant amount of lead, silver, and zinc, 270,945 tonnes of copper and 38,378 kilograms of gold (Church, 1986).
The CBC Property is on a comparative geological trend and hosting skarn. epithermal, volcanogenic, and massive sulphide mineralization similar to the Phoenix deposit
Historic exploration stems from the late 1890’s with the exploration evident in the many trenches, pits, adits, and shafts that were developed in the search for a Phoenix type copper/gold skarn mineral deposit as indicated by the focus of exploration in the Betts area where a large area of skarn mineralization was defined.
The historic exploration revealed many indications to a potential concealed intrusive of copper/gold mineralization at the “Betts Mine” in the skarns, the free gold, the epithermal zone intersected in a drill hole, and the intersection of a massive sulfide epithermal indicated, zone in the 251 metre Betts tunnel. A Teck Exploration geologist reported a mineralized quartz feldspar monzonite float from the Property which assayed 1.2% copper, and which was described as “… potentially displaying a porphyry/skarn linkage” (Evans, 2005) substantiating the potential for a concealed mineral-bearing intrusive.
2020 Exploration Designed to Locate Intrusive
The 2020 CBC Property exploration was therefore programed to locate the area of the potential intrusive and to delineate specific locations for follow-up exploration. Initially, a Lidar survey was completed resulting in the disclosure of numerous indicated lineament structures that may have facilitated the creation of the isolated skarn zones.
Magnetic Survey Reveals Possible Large Porphyry
The follow-up mag survey covered the entire Property and resulted in the delineation of a localized mag low interpreted as a caldera within the initial Lidar indicated delineated porphyritic environment Additionally, the dominant faults creating the two cross-structures which are indicated as locations of collapsed hyrothermal breccia zones within the caldera.
The anomalous magnetometer results, showed fingers from the main mag anomaly reaching the surface which is interpreted as the known surficially exposed mineralized breccias within major faults. From the surficially exposed mag anomaly fingers to a depth of 525 metres below surface, the mag anomaly indicating the concealed mineralization, shows two mag anomalies of 1,000 metres and 800 metres wide with a 1,000 metre wide sub-anomalous zone between the two. The two anomalies may join togeather at a greater depth for a 2,800 metre wide anomalous zone. Additionally, the anomalous zone is 2,000 metres long and open to the northwest and to the southeast.
The Company is planning an IP Survey covering the property which will delineate specific drill targets for an upcoming drill program.
Greenwood-Republic Mining Camp
Copper-Gold Porphyry Target and Skarn
Come By Chance Copper-Gold Porphyry and Skarn -500m Depth
CBC Magnetic Inversion Section Facing NW
Quesnellia Trough, British Columbia
Lidar Survey & Mineralized Showings
Conceptual Model for Styles of Epithermal Gold-Silver, Breccia and Porphyry Copper Mineralization
Come By Chance Brecciation
Explosive hydrothermal brecciation. The interesting feature is the light grey fragments which appear the color of arsenopyrite (FeAsS), a mineral that can also can be associated with significant amounts of gold
The brecciated quartz veins indicate the iron content was derived from metamorphism caused by the quartz intrusion; although the iron may have been emplaced at various stages.