The East zone of the Cabin Lake property is underlain by Lower to Middle Jurassic volcano-sedimentary rocks of the Hazelton Group to the east, Late Cretaceous andesite belonging to the Kasalka Group to the west, Eocene to Oligocene Endako and Ootsa formations (Nechako Plateau Group) andesite and rhyolite respectively to the south and quartz monzonite of the Late Cretaceous Cabin Lake pluton centered within the claim group.
The East zone appears to be the same zone as the Cabin and/or Nithi showing and characterised by fault-hosted mineralised vein sets striking about 325 degrees and dipping steeply toward the west similar to the Central and West Zones, although several apparently contemporaneous mineralised veins trend roughly northeast-southwest and east- west dipping steeply. Porphyritic andesite thought to belong to the Jurassic Hazelton Group outcrops at the eastern contact with heavily altered and mineralised quartz monzonite units in the Upper East zone, although the nature of the contact is unknown due to Quaternary cover. Veins average from one-centimetre to ten metres in width and alteration is gradational from chlorite-after-biotite magnetite quartz monzonite showing a propylitic character at the periphery through magnetite-destructive hematite limonite chert sericite pyrite quartz monzonite to manganese chalcopyrite galena sphalerite crustiform quartz toward the centre. The East Zone is composed of two known mineralised areas: the Upper East zone and the Lower East zone. Both are similar in geologic character and occur along strike from each other, thus they will be treated as one. Mineralisation is similar in character to the Central and West Zones with disseminated and blebby galena, sphalerite, pyrite and arsenopyrite occurring with chalcopyrite and covellite as inclusions or as alteration products. Anomalously high precious and base metal values up to 1.81 grams per tonne gold, 207 grams per tonne silver, 0.92 per cent lead and 1.49 per cent zinc occur with manganese alteration in the East Zone associated with silica-carbonate alteration (Assessment Report 33741).
The location of the East zone appears to be the same as that of the vaguely documented Cabin or Nithi showing.
The Cabin or Nithi showing occurs in an area of mafic to intermediate volcanic rocks of the Hazelton Group, intruded by a Lower Jurassic quartz monzonite pluton. The volcanic rocks consist of andesitic tuff and tuff breccia and porphyritic andesite which, along with the quartz monzonite, have been cut by northwest-trending faults. Occupying fault zones in quartz monzonite are five subparallel quartz-calcite veins occurring over a 500 metre wide zone and which contain pyrite, sphalerite, chalcopyrite and galena. Silver values have been reported with the sulphide mineralization. Individual veins are up to one metre wide and have a strike of 325 degrees dipping 075 degrees west.
Drilling in 1972 intersected mineralization in several holes of which the best was 0.65 metre at 2714.98 grams per tonne silver, 8.6 per cent zinc and 5.05 per cent lead (Assessment Report 13537).
WORK HISTORY
Local prospector Whitney Foote from Fraser Lake discovered significant silver, lead and zinc in float samples from the Cabin Lake area in 1964. Foote staked claims in the area and further geochemical work produced encouraging results. Later in the year R & P Metals drilled six holes without performing significant groundwork.
In 1971 David Minerals Ltd. performed outcrop and reconnaissance geochemical sampling and mapping and in 1972 completed seven diamond drill holes, again with inconclusive results.
In 1976 Nithex Exploration Ltd. performed detailed soil and rock geochemistry, magnetometer and electromagnetic surveys within a historic property-scale grid system, summarised in (Assessment Report 5983) and (Assessment Report 6279). This work was centered in area about 1.8 kilometres north of the west end of Cabin Lake and seems to be more centered around or near the Upper East zone described in 2012 Assessment Report 33741). Soil sampling revealed several associated silver, lead and zinc anomalies and were left open to the east, north and south. Magnetometer readings showed scattered values over the property extent, however anomalously low values were recorded associated with areas of strong alteration and anomalous soil values. An electromagnetic survey was completed during drilling operations in the early winter, identifying several anomalies open to the north and south corresponding to known mineralisation and geochemical anomalies. Later in the year, Nithex Exploration Ltd. drilled six percussion holes to a maximum depth of 100 metres.
Despite promising results from geochemical and geophysical surveys and drilling, the area did not see any further development until acquisition by BP Resources Canada Ltd. - Selco Division (BP) in 1984, summarised in (Assessment Report 13537). During the 1984 field season, BP completed 675 soil, silt and chip samples over two distinct grids: 1) the Cabin grid covering the Capoose 10 and 11 claims immediately south of Cabin Lake, and 2) the Nithi grid lying within the Capoose 12 and 13 claims north-west of Cabin Lake, more in the area of 1975 and 1976 work. BP reported the previously known narrow mineralized vein system of Nithex Exploration claims straddles the boundary of the 1984 Capoose 12 and 13 claims. Results from sampling led to discovery of mineralising potential to the south and confirmed base metal anomalies to the northwest of Cabin Lake. Results from the Nithi grid outlined a zinc anomaly thought to represent underlying zinc-rich lithologies and a calcium anomaly trending roughly north-south through the centre of the Nithi grid thought to represent a fault structure.
Following BP Resources Canada Ltd. ownership, Nation River Resources Ltd. acquired the Cabin claims and in 2000 drilled two short XRT diamond drill holes with anomalous results in silver, lead, zinc and molybdenum, and in 2002, one BQ drill hole (CA02-01) to 94.7 metres at UTM 5972750N, 366650E. In 2005 eight trenches totalling 387 cubic metres were completed.
In 2010, Paget Resources Ltd. optioned the Cabin claim group and later drilled seven holes targeting mineralised fault structures at depth. Little public data exists for work completed on the Cabin claims between 2000 and 2010.
In 2012, RebelEx Resources Corp. collected a total of forty-five grab samples, fourteen soil samples and one stream sediment samples in addition to generation of a 1:5000 scale geological map and detailed petrographic analysis of five representative rock samples. During 2012 mapping and sampling activities, several new mineralised zones were discovered while the West and Central Zones were expanded both along strike and perpendicular with known mineralised structures.
In 2018, DeCoors Mining Corp. completed rock, soil and sediment geochemical surveys over the property containing the occurrence. Rock sampling was completed on the area surrounding the West (MINFILE 093F 093) occurrence, approximately 1 kilometre to the west of the Cabin occurrence. Stream sediment sampling was completed on the occurrence and returned weakly anomalous results. Soil sampling was completed on the West (MINFILE 093F 093) occurrence, designated the West zone, 1 kilometre to the west of the Cabin occurrence; an area 1.5 kilometres southeast of the Cabin occurrence labelled the South zone and an area approximately 3.5 kilometres to the northeast of the occurrence labelled the Northeast zone. Highlighted soil samples included sample 2387, which graded 1.61 grams per tonne silver and anomalous but weak levels of zinc and lead. Weakly anomalous values were observed in the South and Northeast zones (Assessment Report 38037).
