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File Created: 16-Jun-1988 by Laura L. Coughlan (LLC)
Last Edit:  04-Jan-2021 by Del Ferguson (DF)

Summary Help Help

NMI
Name NEE, NEE 1-4, LINDA Mining Division Liard
BCGS Map 104B056
Status Showing NTS Map 104B10W
Latitude 056º 32' 39'' UTM 09 (NAD 83)
Longitude 130º 51' 38'' Northing 6268196
Easting 385605
Commodities Gold, Silver, Lead, Zinc, Copper Deposit Types I01 : Au-quartz veins
K04 : Au skarn
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The Nee occurrence is on steep southeast facing ridge sides above the headwaters of Snippaker Creek. It is located 20.5 kilometres southeast of the Bronson Airstrip on Iskut River and approximately 88 kilometres northwest of Stewart, British Columbia in the area known as the Bronson Corridor.

Undivided flows and volcaniclastics of the Jurassic to Triassic Hazelton Group (Unuk River Formation) or Stuhini Group, are comprised of basaltic to andesitic flows, agglomerates, breccias and tuffs. A Jurassic to Triassic sedimentary unit is comprised predominantly of limestone, calcareous argillite and siltstones which are occasionally interbedded with light brown calcarenites and marly shales. The limestone is schistose and hosts abundant quartz and calcite veins.

The volcanics and sediments are intruded by a felsic intrusive comprised of orthoclase porphyry and rhyolite. The rocks are strongly sheared and altered with extensive limonitic staining. These rocks are thought to be related to an altered stock of similar composition which is exposed north of the claims.

Felsic dikes traverse the property and appear to dip at shallow angles to the west and may be up to 12 metres in width. They are associated with narrow chill zones.

Propylitic alteration is extensive and is evidenced by abundant chlorite and epidote in both the volcanic and sedimentary rocks. A zone of carbonate alteration is developed along a northeast-southwest trend and may be related to a fault structure. The intrusive rocks have been sericitized and bleached. Argillic alteration has developed along a major fault in these rocks. Hornfels is developed at and near the intrusive contacts.

Disseminated pyrite is ubiquitous throughout the property with an increase of pyrite content in the intrusive rocks. Coarse-grained, brassy pyrite is present in the hornfelsic zones.

Several quartz veins are present on the property with two intermittently mineralized quartz veins exposed on the northeast portion of the property. These parallel veins average 1.0 metre in width and dip at moderate angles. They contain narrow sections of massive arsenopyrite which may occur along either the hangingwall or footwall of the veins. The wallrocks, which consist of skarned limestone and argillite, host disseminated pyrite with minor sphalerite and galena for up to 1.0 metre from the contacts.

Small (10 to 25 centimetres) arsenopyrite-galena-quartz veins occurring within silicified rocks on the Nee claims were examined in 1983. A sample from the Nee arsenopyrite vein was reported to assay 27.325 grams per tonne gold, 143.65 grams per tonne silver, 2.4 per cent lead and 0.27 per cent zinc (Assessment Report 11332, part 1).

The historic data also identifies a strong copper in soil anomaly to the south, west and north of the Nee showing which coincides with gossanous zones in monzonitic outer phase of the Lehto Batholith (Assessment Report 35943).

All 8 rock samples taken at Nee in 2016 with greater than 1.0 gram per tonne Au were hosted by quartz or quartz-carbonate veins, often with only minor sulphides, cutting mafic tuffs. Veins are discontinuous and poddy but locally several metres wide. Veins were often found along the margins of quartz monzonite to monzonite dykes in generally north-northeast-trending structural corridors.

Work History

In 1965 a group of over 500 claims, covering the present Nee property was staked by American Smelting and Refining Company and Silver Standard Mines Ltd. Prospecting was carried out to locate the source of silver-gold-lead-zinc mineralized float. Those claims were subsequently allowed to lapse. In 1971 Great Plains Development staked claims in the area which, in part, covered the present Nee Property. Geophysical, geological, and geochemical work was carried out on the claims in the period between 1972 and 1975. These claims were also allowed to lapse. The Nee claims were staked in 1980 because of renewed interest in precious metals and high silver and gold prices. The work completed involved geological reconnaissance and mapping over an area of approximately 2 square kilometers at a scale of 1:5000. Mineralized float occurrences were carefully marked in the field and plotted to find the direction back to the bedrocks source of this material.

In 1987 prospecting by Consolidated Silver Standard Mines occurred on the Linda 1 and 4 claim (Assessment Report 17572). These claims surrounded the original Nee claims on the south and later, after the lapse of the Nee claims, the Linda 5-8 were staked over the same area as that of the Nee property (Nee 1-4). Thirty-three rock samples were collected from moraines both lateral and medial along glaciers on Linda 1 and 3 claims. Five soil samples were collected on Linda 3 claim. Prospecting on the of glacial moraine on the Linda 1 and 3 mineral claims revealed the presence of calcareous sediments and tuffs with gold bearing quartz veins hosting sphalerite galena chalcopyrite pyrite and pyrrhotite. The source of these polymetallic sulphide bearing boulders appears to be either beneath the hanging glacier on the north side of the Linda 1 claim or along the ridge between the hanging glacier and the main glacier on Linda 1 claim.

In 2006 and 2007, Hathor Exploration Ltd. completed a 7228.7 line-kilometre airborne geophysical survey on the area as the Georgia claims of the Iskut project. In 2008, Max Minerals Ltd. examined the property.

In 2014 and 2015, Colorado Resources Ltd. prospected in and around the Nee occurrence as part of a larger exploration program on their KSP property. Rock samples reported high grade gold and base metal values from quartz-sulphide veins taken from a 500 by 500 metre area, less than 500 metres to the northwest of the Nee showing. Quartz veins in the area are northwest trending and locally exceed 7 metres in width. Rock sample 2638969 reported 35.2 grams per tonne gold, 128 grams per tonne silver, 0.088 per cent copper, 2.6 per cent lead, and 0.19 per cent zinc. Sample 2637057 reported 10 grams per tonne gold, 78.7 grams per tonne silver, 0.168 per cent copper, 2.04 per cent lead, and 37.4 per cent zinc (Assessment Report 35184).

A modest follow-up prospecting program around Nee by Colorado Resources in 2015 sampled float of quartz vein material approximately 700 metres south of the Nee showing. This float sample was found adjacent to the glacier and reported 45.5 grams per tonne gold and 0.942 per cent copper. Outcrop from this same area reported 0.68 per cent copper and 28 parts per billion gold from a sample of a 15 centimetre quartz vein with semi-massive pyrite and pyrrhotite (Assessment Report 35943).

In 2016, field crews collected 97 rock and 121 soil samples from the NEE and PINS area, where several high-grade gold, copper, silver, lead, and zinc samples resulted (Assessment Report 36761).

In 2017 Colorado Resources Ltd. collected 18 rock samples and 31 soil samples. Two rock samples returned high results for gold, 23.4 grams per tonne Au and 2.39 grams per tonne Au (Assessment Report 37604)

Bibliography
EMPR ASS RPT *10820, *11332, *17572, *35184, *35943, *36761, *37604
EMPR BULL 63
EMPR FIELDWORK 2015-1 pp. 41-58
EMPR GF 2015-4
EMPR GM 1997-03
EMPR OF 1989-10; 1990-16; 1994-1; 2004-2; 2006-2
EMPR P 1993-1, pp. 335-339; 2004-1, pp. 1-18; 2005-1, pp. 1-30; 2006-1, pp.1-3; 2015-1, pp. 41-58
EMPR PF (Graf, C. (1982): Report on Claims in Snippaker Creek Area of British Columbia for Active Mineral Explorations, December 1982)
GSC MAP *9-1957; 311A; *1418A
GSC MEM 246
GSC P 89-1E, pp. 145-154
P REL (Colorado Resources & QuestEx Gold & Copper) www.questex.
Anderson, R.G., (1988): A Paleozoic and Mesozoic Stratigraphic and Plutonic Framework for the Iskut Map area (104B), Northwestern British Columbia, pp. A1-A5, in Geology and Metallogeny of Northwestern British Columbia, Smithers Exploration Group, G.A.C. Cordilleran Section Workshop, October 16-19, 1988
Cavey, G. (2008-11-14): Technical Report on the Iskut Project

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