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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  21-Oct-2021 by George Owsiacki (GO)

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NMI 104N11 Au9
BCGS Map 104N063
Status Prospect NTS Map 104N11W
Latitude 059º 38' 39'' UTM 08 (NAD 83)
Longitude 133º 27' 06'' Northing 6612802
Easting 587283
Commodities Gold, Silver, Lead, Zinc, Copper, Bismuth Deposit Types I01 : Au-quartz veins
Tectonic Belt Intermontane Terrane Cache Creek
Capsule Geology

The Lakeview occurrence is located between Birch and Boulder creeks just north of the west end of Surprise Lake, about 16 kilometres northeast of the community of Atlin.

Mineralization at the Lakeview showing is hosted in intermediate to mafic volcanic rocks of the upper Mississippian to Permian Nakina Formation of the Cache Creek Complex. This package is composed of olivine-bearing basalts and andesite with varying degrees of silicification. These rocks are in close contact with upper Mississippian to Permian ultramafic rocks (Cache Creek Complex) and overlain by cherts, argillites, and limestones of the Mississippian to Triassic Kedahda Formation (Cache Creek Complex). Fresh ultramafic rocks appear as peridotite but they are often highly serpentinized and talc altered.

The occurrence comprises quartz-calcite veins hosted in silicified and carbonate altered "listwanitic" zones within the andesite. The vein has a quartz core and calcite selvages and varies from 2 centimetres to 1 metre in width. The vein strikes at 125 degrees and dips 80 degrees to the northeast; its attitude is very consistent. Sulphide mineralization in the vein occurs as blebs of pyrite and galena with minor chalcopyrite and sphalerite. In the altered wallrock, pyrite, mariposite, ankerite, chromite and magnetite occur as disseminated grains. Gold is visible in the vein and the altered wallrock immediately surrounding the vein may also be auriferous. Hessite and tetradymite occurs locally.

Underground development was done primarily in 1902; one adit and two shafts were developed along 150 metres of strike length of the vein. Material from these workings was said to have averaged 14.4 grams per tonne gold. No further underground development was done after 1902.

In 1933, a sample of "best mineralized vein material" from a dump pile assayed 43.5 grams per tonne gold and 933.1 grams per tonne silver (Minister of Mines Annual Report 1933).

From 1982-86, Cream Silver Mines Ltd. conducted exploration. In 1986, Cream Silver Mines Ltd. completed a diamond drilling program of 15 holes totalling 1602 metres. In addition, a ground magnetometer survey was run over 30 kilometres of grid lines.

In 2004-05, five days were spent sampling and geological mapping a northeast trending quartz vein system by C. Aspinall. Four soil samples, three rock samples, and one tailings sample were sent for analyses.

In 2020, Stuhini Exploration Ltd. released results of its 2020 field program on its Ruby Creek property which includes the Birch Creek target at the Little Edna showing (104N 125), the Boulder Creek target at the Sunbeam showing (104N 073), and the Lakeview showing (104N 009). The historic Lakeview showing consists of gold-bearing quartz veins hosted in intermediate to mafic volcanic rocks of the Cache Creek Complex. The target has not received any significant exploration since 1987. Grab samples in the 2020 program are from steeply dipping north-northeast trending quartz-carbonate veins and assayed 15.44 grams per tonne gold and 303 grams per tonne silver (sample 1478133; Press Release - Stuhini Exploration Ltd., May 4, 2021). In addition to prospecting and rock sampling, 25 soil samples were collected along a line perpendicular to a geophysical anomaly identified in the 2020 SkyTEM survey. Two gold-in-soil anomalies have been recognized on this line, including a 100-metre-long anomaly and a second single-sample anomaly at the very end of the line.

EMPR AR 1902-39; 1904-76,92; 1918-95; *1933-78
EMPR BULL 94; 108, pp. 21, 22
EMPR OF 1989-15; 1989-24; 1996-11
EMPR PF (Atlin Area, Smithers: 104N 009; Black, J.M. (1953): Atlin Placer Camp, Unpublished Report, 116 pages)
EMR MP CORPFILE (Yukon Revenue Mines Ltd.)
GSC ANN RPT Vol.12, Part A, p. 70; Part B, p. 45
GSC MEM 37, p. 104; 307, p. 73
GSC OF 864
GSC SUM RPT *1910, p. 49; 1925
DIAND OF *1990-4
GCNL #139,#145,#154,#182,#195, 1981; #104, 1987
N MINER Aug.6, 1981
V STOCKWATCH May 8, Jul.12, 1987
PR REL Stuhini Exploration Ltd. Apr.6, May *4, 2021
Andrew, K.P.E. (1985): Fluid Inclusion and Chemical Studies of Gold-Quartz Veins in the Atlin Camp, B.Sc. Thesis, University of British Columbia
Cordey, F. et al. (1987): Significance of Jurassic Radiolarians from the Cache Creek Terrane, British Columbia, in Geology Vol.15, pp. 1151-1154
Newton, D.C. (1985): A Study of Carbonate Alteration of Serpentine Around Gold and Silver Bearing Quartz Veins in Atlin Camp, B.Sc. Thesis, University of British Columbia