The Kena Copper showing is located about 9 kilometres south of Nelson and is part of the larger Kena property of Sultan Minerals Inc. The Kena property hosts a number of porphyry style, gold and gold-copper occurrences. The property lies on the eastern limb of the Hall Creek Syncline, a south-plunging fold associated with intense shearing that dominates the structure of the Nelson map area. The syncline incorporates volcanic and lesser sedimentary rocks of the Lower Jurassic Elise Formation (Rossland Group) which are intruded by a synvolcanic monzodiorite complex and by the younger? Middle Jurassic Silver King Intrusions comprising a coarse-grained plagioclase porphyry stock with related dikes and sills.
In the Kena Copper zone, alkalic porphyry style copper-gold mineralization occurs in the southeast section of the property. It is spatially related to a large monzodiorite complex, and to the borders of the complex. Chalcopyrite and pyrite occur as disseminations, fracture fillings and in quartz veinlets in the intrusive rocks, and as weaker disseminations and fracture fillings in basaltic to andesitic tuffaceous rocks of the Elise Formation. The copper mineralization commonly includes malachite. The area is marked by sericitic and limonitic shear zones parallel to foliation, and by zones of moderate to intense fracturing that are variably altered by propylitic assemblages of chlorite, epidote and carbonate. Magnetite occurs as disseminations and fracture fillings, and biotite is locally conspicuous and may be part of a broader zone of potassic alteration centred on the complex.
The area has been variably silicified by quartz veins that both cross and follow the foliation. They vary from weak to strong and occur as narrow fracture fillings, weak stockworks or rarely thick veins up to 0.5 metre wide. Some of the veins are coarse grained and appear barren of sulphide. Others are vuggy and crystalline, contain calcite, and are mineralized with pyrite and chalcopyrite. The nature of the veining combined with results from analytic data appear to reflect more than one period of emplacement.
Sections of the mineralized area have been examined by short underground workings and a few drillholes. This work has resulted in a number of wide intercepts of low grade copper mineralization with low gold content. Typical examples include an 82.0 metre adit that grades 0.16 per cent copper and a nearby drillhole that intersected 0.18 per cent copper over 45 metres. In 1990, drilling by Noramco Mining Corp. resulted in a best intersection of 0.27 per cent copper and 0.2 gram per tonne gold over 57 metres (George Cross News Letter No.30, 1991). A grab sample collected in 2000 yielded 3.99 per cent copper and 2.87 grams per tonne gold. Exploration work has not been sufficiently detailed or comprehensive to either delimit the area of interest, or to determine whether significant ore-grade sections may be present (Assessment Report 26503). The South Gold zone is 1000 metres of the Kena Copper zone and follows the contact between Elise Formation volcanics and Silver King porphyry intrusive rocks. The zone is a large gold-in-soil geochemical anomaly that trends parallel to this contact (Sultan Minerals Inc. Annual Report 2000).
Mineralization in the Kena property area was first described in a report by G.M Dawson in Geological Survey of Canada Annual Report for 1888-89. Little is known about exploration on the claim area prior to 1973. Post-1973 exploration, however, has identified old prospect pits and trenches, as well as several old adits indicating periods of exploration activity in the early part of the century. Numerous exploration companies carried out geological, geochemical, geophysical surveys, trenching and drilling on the property from 1974-91. These companies explored the Elise Formation volcanics for gold and copper mineralization and discovered the Kena Gold zone (082FSW237), Kena Copper zone (this description) and the Shaft/Cat zones (082FSW331). The Kena Gold zone underwent the most thorough exploration with the Kena Copper and Shaft/Cat zones only being tested minimally. No additional work was done until 1999 when Sultan Minerals Inc. acquired and amalgamated several properties under the name Kena property. Recent exploration work and data compilation by Sultan Minerals have identified four gold-bearing zones on the Kena property. These are: the newly discovered Gold Mountain (082FSW379), Kena Gold, Shaft/Cat, and South Gold soil anomaly located about 1000 metres south of the Kena Copper zone.
In 1976 to 1977, Quintana Minerals Corp. conducted an exploration program including geological, geochemical, and IP surveys over the area of the Kena Copper Zone. Highlighted results were described as 21 metres grading 0.53 percent copper (Giroux, G., Grunenberg, P. (2012-04-30): Technical Report on the Kena Property, Nelson, BC).
In 1981 to 1982, Kerr Addison Mines Ltd. completed a 635.2 metre drill program across three holes in the copper zone. Highlighted results included the top 51 metres of the hole grading 0.27 percent in hole 88-KK-4 (Giroux, G., Grunenberg, P. (2012-04-30): Technical Report on the Kena Property, Nelson, BC).
In 1985-1986, Lacana Mining Corporation conducted a grid geochemical, geological, and VLF-EM surveys over the occurrence. One drill hole was completed just north of the occurrence. No significant results were stated.
In 1987, Tournigan Mining Exploration Ltd. conducted a drilling program over the Kena property. Drill hole TK-87-42 was located on the Kena Copper occurrence. The highlighted section graded 0.175 percent copper over 9.72 metres (Giroux, G., Grunenberg, P. (2012-04-30): Technical Report on the Kena Property, Nelson, BC).
In 1990 to 1991, Noramco Mining Corporation completed an exploration program consisting of mapping, soil sampling, and a geophysical survey over the area of the Kena property containing the Kena Copper occurrence. Two drill holes were completed but no significant results were given.
In 2008, Sultan Minerals Inc. completed a small trenching program targeting historic soil anomalies around the area of the occurrence.
In 2009 and 2010, Sultan Minerals Inc. completed an induced polarization geophysical survey over the occurrence to complete a comparison of results to the work previously completed at the Kena Gold occurrence.
In 2010, Sultan Mineral Inc. completed an exploration program covering most of the Kena property. It included one drill hole at the South Gold Zone, and two drill holes at the Kena Copper King Zone.
In 2012, Eagle Mapping Ltd. conducted an airborne LiDAR survey over a 15.3 square kilometre area of the Kena Property.
In 2012 to 2013, Altair Gold Inc. conducted a rock sampling program over the property occurrences of Gold Mountain, Kena Gold, Euphrates, South Gold, and Three Friends. Of the 179 rock samples collected, eight returned gold grades greater than 0.3 gram per tonne.