The 1550 ha Vulcan Property is located in the Purcell Mountains, 35 km NW of the historic Sullivan Mine at Kimberley, B.C. The Sullivan contained 160 million tons grading 12% Pb-Zn and 67 g/t Ag, with a mineable lifetime of 92 years, and a contained metal value in present dollars exceeding 35 billion dollars.
The Vulcan claims were acquired to cover four strata-bound Pb-Zn and Cu occurrences, hosted in Aldridge Formation and holds the potential to host significant sedimentary-exhalative (“SEDEX”) mineralization.
The property is easily accessible by a series of all-weather, logging and mining exploration roads and is 100% owned by Eagle Plains with no underlying royalties or encumbrances.
- Overlies world-class Sullivan deposit stratigraphy
- Numerous Sullivan-type SEDEX mineralized occurrences and alteration
- Encouraging exploration to date with comprehensive database
- Located within the Sullivan Corridor – 35 km west of the Sullivan Mine
- Road accessible with nearby rail, highway, airport, smelter, hydro
The Vulcan property geology is contains many geologic features similar to those seen within the Sullivan Mine itself, and associated with adjacent Sullivan-North Star Corridor. These features are summarized below:
a) A stratigraphic sequence which is directly correlative with the Sullivan Deposit. This includes Lower Aldridge rocks (rhythmic succession of laminated to thin bedded fine grained wacke (argillite) and quartzitic wacke (argillaceous quartzite)) in contact with the overlying Middle Aldridge rocks (medium to thick bedded light grey weathering quartzitic wacke turbidites consisting of medium grained massive quartz-rich bases overlain by thin wacke-subwacke (argillite) tops), with an intraformational conglomerate and strata-controlled mineralization. This sequence has been mapped on the property over a 3 km strike length, and in thickness to 250 m.
b) Alteration including tourmalinization and albitization are present and in association with the Lower Middle Aldridge Contact (LMC).
c) Stratiform lead-zinc-silver mineralization has been noted in drillholes and on surface, and is stratigraphically located within the "Sullivan-Time" horizon. Sampling from the Main showing has returned values of 1.6% combined Pb-Zn over 1.52m within a weakly mineralized section 7.5m thick
|Animation of a SEDEX deposit foming
Originally staked by Cominco in 1957, exploration in the western portion of the property discovered Pb-Zn showings and widespread tourmaline mineralization, both recognized as being stratigraphic-controlled. A strong similarity between the Vulcan and the Sullivan Mine was documented by Cominco at this time noting that Pb-Zn-Ag mineralization "occur(s) in the same type of rocks, at the same point in the stratigraphic succession (LMC) and as the same type of mineralization" as at Sullivan. Deep drilling was recommended but deferred.
Regional stratigraphic correlation studies in the 70’s confirmed that the Vulcan mineralization occurs at the LMC and suggested that the Sullivan type setting defined by the 1958 work was unique, and appeared to be localized in the western part of the Vulcan claims.
In 1976, Cominco again staked the Vulcan Claims. An access road was constructed and a single 188 m drill hole tested the LMC. No mineralization or lithogeochemical anomalies were found at the LMC which was marked by a distinctive pyrrhotite laminated wacke underlain by fragmental rocks. Weak Pb-Zn mineralization was located in the Lower Aldridge Formation in this hole.
In 1983, Cominco sampled the fragmental unit and LMC sequence, and several Pb-Zn-As anomalies were delineated. Ground-based geophysical results over this area were interpreted as a "weak extensive conductor, with depth to top varying from 100 to 200 m". The conductor was located in the area of the completed Cominco drill hole.
In 1991 a 5 hole - 1003 m drill program tested 2.6 km of LMC strike length to define the sub-basin which forms the sulfide host at shallow to intermediate depths and determine the distribution of base-metal sulfides.
In 1992, a drill program tested the LMC in the West Basin area with the closest hole being 500 m west of the property boundary. The drilling located Sullivan-type stratigraphy and alteration in all holes but significant base-metal mineralization was not encountered. The down-dip extension of the 1991 holes on the Vulcan Property remains untested.
No further exploration was carried out until 2002.
Vulcan Project Zones
Main Showing Area
At the Vulcan, the styles of mineralization, host rocks and alteration all show strong similarities to the Sullivan Deposit. To date, the best sulfide mineralization is exposed at the Main Showing. Strata controlled pyrrhotite-galena-sphalerite occurs at the "Sullivan Horizon" in a 7.5 m thick zone. Here a 1.5 m channel sample graded 1.6% combined Pb-Zn and grab samples assayed up to 5.5% Pb-Zn and 22 g/t Ag.
West Basin Zone
The West Basin Zone area contains features similar to those seen within the Sullivan Mine itself and associated with the adjacent Sullivan-North Star Corridor. These include intraformational conglomerate and strata-controlled mineralization at Sullivan time, and extensive albite and tourmalinite alteration.
Eagle Plains Exploration
Eagle Plains staked the property in 2002.
2005 work included reinterpretation of data collected during a 1996 BC government funded high-resolution geophysical survey and integration into a GIS database. It was found that the GPS height and the barometric altimeter height used in the original survey interpretation was incorrect, rendering the original geophysical program highly suspect, if not worthless. A new interpretation was produced using the corrected elevation data.
In 2006 a high-resolution VTEM airborne geophysical survey defined a number of anomalies. The most interesting feature roughly traces the contact between Lower and Middle Aldridge rocks in the SW part of the property. The anomaly appears to correspond with rocks located stratigraphically below the LMC and represents a new, untested target between two known mineral occurrences at surface.
In 2011, an airborne gravity geophysical survey successfully identified possible discordant structures spatially associated with the Hilo 2 mineralized showing. The anomaly potentially represents a mineralized structure associated with Proterozoic growth faults that has not been detected at surface.
In 2012, geochemical sampling and geological evaluation of the Hilo 3 showing was carried out. A channel sample from the Hilo 3 returned 10.6 g/t Ag, 0.9% Pb and 0.7% Zn over the 1 m interval.
2014 - Field Program
The 2014 field program consisted of soil geochemical sampling across the trace of the LMC in the eastern part of the property. Results were encouraging, with multi- element Sullivan type geochemical signatures associated with a number of the lines.
The Vulcan property warrants further work, with the focus on:
- Locating and documenting historic exploration efforts such as drill holes and compiling this data into a modern digital database to use for planning
- Comparing ground-based with airborne geophysical surveys followed by field work including mapping, prospecting, and geochemical sampling to identify areas for drill testing
- A single 300-400 m diamond-drill hole, north of the Hilo 3 Showing to intersect the Sullivan-type mineralization observed there and at surface further down-dip, this is the most prospective area on the property
Eagle Plains - A Project Generator
Eagle Plains Resources is a project generator with mineral exploration properties of merit that meet qualifying transaction requirements. The Vulcan is available for option to joint-venture partners. We facilitate the listing process for capital pool companies and initial public offerings while providing technical expertise for exploration programs. Companies interested in co-operatively exploring any of these projects please contact: Tim Termuende at firstname.lastname@example.org or Mike Labach at email@example.com or call 1 866 Hunt Ore (486 8673).
Updated May 31, 2016