The Reko 38 occurrence is located in the western head waters of Renfew Creek, approximately 8 kilometres north- north east of Fairy Lake.
The area is mapped by Muller (Geological Survey of Canada Open File 821) as primarily diorite of the Mesozoic and/or Paleozoic Westcoast Complex. An east trending band of limestone is also mapped. Volcanics of the Lower Jurassic Bonanza Group lie to the north of the Reko property.
The north part of the Reko property is underlain by grey to white crystalline limestone, and the central and south part is underlain mainly by intrusive breccia. Several bodies of limestone also occur in the central and south part. The primary fragments of the breccia are fine grained and dark grayish green in colour, resembling andesite, and some contain amygdules. This andesitic rock was successively intruded by mafic-rich and mafic-poor diorite. The breccia grades to massive, mesocratic diorite to the south, and to massive andesite at about the 600 metre level on the west side of the east ridge. A set of long, narrow, fine-grained grey dykes strike 020 degrees and transects all other rocks. Most limestone bodies have been successively intruded by dykes of andesite and leuco- diorite. It is thought that prior to diorite intrusion andesite underlay the limestone and also intruded it.
Three zones make up the Reko 38 occurrence.
1.) Zone 4 (Martin's Pit), located on a bluff, consists of irregular veins, pockets and masses of magnetite in partly skarned diorite. Drilling into the base of the exposure in 1974 showed substantial lengths of magnetite.
2.) Zone 5 (Northwest zone), located 900 metres north-northeast of Zone 4. Locally, a mixture of magnetite and sulphide minerals are hosted by an area of skarn. Abundant magnetite occurs with chalcopyrite, pyrrhotite and pyrite in one drill hole, from 0.6 to 8 metres. From 20 to 26.5 metres the core is mostly massive pyrrhotite, containing lenses and blebs of chalcopyrite. Zone 5 is estimated to have about 35,000 tonnes of ore (Geology and Exploration in B.C. 1974, page 170). No grade of ore was given.
3.) Zone 6 (Falls) is located about 250 metres southeast of Zone 5. Locally, a mixture of magnetite and skarn is exposed over an area of about 9 square metres and a height of 3.7 metres. It is flanked by diorite and andesite.
In 1975, Reako Explorations Ltd. reported an ore reserve estimate on the Reko property (see Reko 3 -- 092C 090, Reko 10 -- 092C 091 and Reko North -- 092C 146) of 4,500,000 tonnes grading 22 per cent iron (George Cross News Letter No.207, 1975).
Work History
In 1970, bulldozing and blasting by B.C. Forest Products road-building crews uncovered showings of magnetite and sulphides near the upper reaches of Renfrew Creek. The Reko 1-6 claims were staked on these showings in July 1970 by Mr. M. Levasseur. Sampling of the exposed mineralization was subsequently carried out. Levasseur and associates incorporated Reako Explorations Ltd. in July 1971 and completed a magnetometer survey and six short drill holes, totalling 37 metres. In 1972 and 1973, programs of geological mapping, 120 line-kilometres of ground magnetometer surveys, 19 line-kilometres of induced polarization surveys, trenching and 100 diamond drill holes, totalling 5300 metres, were completed on the Reko 3, 4, 9, 10 and 42 claims. In 1974, a further six diamond drill holes, totalling 89 metres, were completed on the Reko 37 claim.
In 2003 through 2010, Emerald Fields Resource and Pacific Iron Ore Corporation completed various exploration projects in the area as apart of the Pearson Project. These included prospecting, diamond drilling, ground and airborne geophysical surveys, geological mapping and geochemical sampling.
