Listwanite-Associated Lode Gold Mineralization
of the Motherlode Type
- At A-J the former Athelstan and Jackpot gold mines (7,600 ozs Au & 9,000 oz Ag) along, with current high grade gold pit, trenches and mine dump sampling results, are associated with listwanite, a key ultramafic rock alteration directly associated with several multi-million ounce gold deposits in British Columbia, Atlin, Bralorne and Barkerville as well as the Motherlode District in California.
- In the US Cordillera, it is noted that mineralized quartz veins in the Mother Lode District of California deposits (production of US$300,000,000 in pre-1945$), are associated with serpentinite bodies and that the largest concentrations of free gold occur at or near the intersection of veins with listwanite rocks.
- The Alaska-Juneau gold deposits of South East Alaska (3.5 million ounces hard rock gold) also exhibit listwanite rocks intercalated with mafic volcanic rock.
- Listwanite (carbonatized ultramafic rock) is a distinctive alteration assemblage commonly associated with quartz carbonate lodes that have the potential for high-grade gold mineralization.
- The alteration develops along faults (A-J Fault?) that intersect bodies of serpentinized ultramafic rocks.
- Serpentinized ultramafic rocks are widely distributed throughout the A-J property
- The carbonate-altered listwanite on the A-J property seems to provide a favourable chemical environment for deposition of arsenopyrite-hosted gold mineralization
Click here to read more about Listwanites
The Athelstan-Jackpot (A-J) Property
- Property contains Athelstan and Jackpot past producing gold mines.
Production: 7,600 ozs Au & 9,000 oz Ag (Minfile 082ESE047).
- Excellent infrastructure with power, water and highway access.
- Only 1.5kms from 200 tpd toll mill.
- Along with the numerous mineralized pits the property contains extensive mine dumps that appear to contain further mineralization.
- The strike extent of the A-J gold bearing structure is over 1 kilometre
1986 Trench and Dump Sampling Highlights
1986 Trench and Dump Sample Locations & Au g/t values
Note: 1986 rock sampling was conducted by Mr. David Jaworski and preparation and geochemical analysis were undertaken by Acme Analytical Laboratories at their 1020 Cordova St. East Vancouver facility.
All 1986 rock samples were analyzed for gold (AU-AA23) and 35 elements by ICP- AES using an aqua regia digestion (ME-ICP41). Reported in 1989 Report on Athelstan-Jackpot Property, Authored by J.J. McDougall, P.Eng.
2020 Exploration Program
UAV Magnetometer Survey
- Magnetite formed during the the serpentinization of ultramafic rocks produces a strong magnetic signature.
- However Carbonatization (formation of Listwanite) results in the destruction of magnetite, creating zones of reduced magnetic susceptibility (Mag Low) most likely a result of the reaction of carbonate rich mineralizing fluids invading serpentinized ultramafics leading to destruction of magnetite.This feature is common in other Cordilleran lode gold deposits such as the Atlin gold camp in northern British Columbia.
- UAV (Unmanned Aerial Vehicle) Magnetic Survey to be flown over entire property to identify possible further zones of listwanite (mag low) and identify extensions of zones to depth.
- 25m flight lines spacing will provide very high definition data.
IP Survey & Drilling
- The Company is awaiting approval of a 5 year work permit application which includes IP surveying and drilling.
- Upon receipt of the permit an IP geophysical survey will be conducted
- Results from both the Airborne magnetics and the IP survey will be qualified to delineate drill targets.
Additional Drill Targets
- Low angle southwest directed drilling to test for shallow low grade bulk tonnage gold mineralization across the A-J mineralized trend.
“Listwanites form as a result of the chemical reaction between serpentinite and CO2-rich fluids. These fluids usually migrate along faults or fractures (Jackpot Fault?) along the contact of serpentinite and the adjacent country rocks”
- Drilling to test the intersection of the A-J mineralized trend with the Jackpot fault (east of the B zone) for structurally controlled mineralization.
A-J Mines & Property Workings
A-J Mines & Property Workings
Phoenix Mining Camp