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File Created: 23-Dec-1987 by Gordon S. Archer (GSA)
Last Edit:  27-Mar-2022 by Nicole Barlow (NB)

Summary Help Help

NMI 104B1 Au2
Name GOLDEN CROWN, BIG MISSOURI Mining Division Skeena
BCGS Map 104B020
Status Prospect NTS Map 104B01E
Latitude 056º 06' 32'' UTM 09 (NAD 83)
Longitude 130º 01' 14'' Northing 6218668
Easting 436531
Commodities Copper, Lead, Zinc, Gold Deposit Types G07 : Subaqueous hot spring Ag-Au
G06 : Noranda/Kuroko massive sulphide Cu-Pb-Zn
I02 : Intrusion-related Au pyrrhotite veins
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Golden Crown occurrence, which is located 700 metres south-southeast of the Big Missouri deposit, lies within south-southeast striking, moderately dipping andesite, agglomerate and lapilli tuff, with interbedded cherty tuff of the Lower Jurassic Unuk River Formation. (See Big Missouri - 104B 046 for enhanced geology).

The mineralization, which consists of pyrite, chalcopyrite, galena, and sphalerite, occurs in andesitic tuff and intercalated hematitic sediment lenses. Two adits explored a mineralized zone up to 3 metres wide, associated with cherty tuff.

Work History

In 1987, diamond drilling by Westmin Resources Limited occurred on the Laura, Golden Crown and Pass Fraction claims (Assessment Report 16806).

Ascot Resources Ltd conducted exploration on the Dilworth Property in 2007 and 2008 and subsequently acquired the Premier Gold Property from Boliden Ltd under the terms of a 2009 option agreement.

The Golden Crown zone is located above Hog Lake and the former mill site of the Big Missouri Mine. Several old underground workings are situated below the 2009 drill site of Ascot Resources. Surface samples in strongly mineralized rock near the entrances to the adits yielded several low-grade intervals (1.0-2.0 grams per tonne gold) over short intervals of up to 2.0 meters in chip sampling (Assessment Report 31489). Drill holes P09-045 and 046 were drilled easterly. Results include 6.02 gram per tonne gold over 1.00 metre at 17.60 metres and 1.09 grams per tonne gold over 4.0 metres in P09-045, and 2.76 grams per tonne gold over 6.63 metres at 127.37 metres in P09-046 (Assessment Report 31489). These narrow, low-grade intersections were encountered in both holes and may represent a steep westerly dipping stockwork zones. Rocktypes encountered were varieties of andesites with minor quartz veins/flooding marking the mineralized zones.

2010 drillhole P10-075 is located to the west of 2009 drill holes on the Golden Crown Zone. Rocktypes are a mix of various units and include abundant lapilli tuff scattered through the hole, plus several zones of gold mineralization. The upper mineralization, 0.52 grams per tonne gold over 4.38 metres, was encountered just below the casing and included a short section of silica breccia (Assessment Report 32357). The middle zone that roughly corresponds to the Province Zone, consisted of 1.64 grams per tonne gold over 3.39 metres hosted in an altered andesite and silica breccia (Assessment Report 32357). The lower zone, 0.34 grams per tonne gold over 42.94 metres, contains several results greater than 1.0 grams per tonne gold but most assay results were less than 0.3 grams per tonne gold (Assessment Report 32357).

See Big Missouri (104B 046) for related and specific historical work. See also Yellowstone (104B 039) and Premier (104B 054) for details of the Dilworth and Premier properties that includes the Big Missouri and occurrences in the vicinity.

EMPR AR 1910-65; 1914-154; 1915-72; 1917-72; 1922-84; 1925-102
EMPR BULL 58, p. 126; 63
EMPR EXPL 1978-257; 1980-461
EMPR FIELDWORK 1980, pp. 201-209; 1982, pp. 182-195; 1983, pp. 149-164; 1984, pp. 316-341; 1985, pp. 217,218; 1986, pp. 81-102
EMPR OF 1987-22
GSC MAP 9-1957; 1829; 307A; 1418A
GSC MEM 132; 175, pp. 154,155
GSC P 89-1E, pp. 145-154
GSC SUM RPT 1910, p. 88
CIM SPEC. Vol. 37, pp. 202-215
V STOCKWATCH Oct. 19, 1987
Brown, D.A., (1987): Geological Setting of the Volcanic Hosted Silbak Premier Mine, M.Sc. Thesis, University of British Columbia, (in Property File 104B 054)
Dykes et al: GAC Field Trip "C" Guidebook, Oct.19-21, 1988 (copy in Property File 104B 046)
Galley, A. (1981): *Volcanic Stratigraphy and Gold-Silver Occurrences on the Big Missouri Claim Group, Stewart, British Columbia, M.Sc. Thesis, University of Western Ontario
Christopher, P.A. (2009-08-03): Technical Report on the Premier Gold Project
Kirkham, G. (2012-06-18): Technical Report on the Resource Estimate for the Premier Gold Property
Kirkham, G. (2012-08-20): Revised Technical Report on the Resource Estimate for the Premier Gold Property
Puritch, E. (2013-03-27): Technical Report and Resource Estimate for the Big Missouri and Martha Ellen Deposits, Premier Gold Property
Rennie, D.W. (2018-06-22): Technical Report on the Premier-Dilworth Project
Rennie, D.W. (2019-01-17): Technical Report on the Premier Project
Bird, S.C., Meintjes, T. (2020-02-28): Resource Estimate Update for the Premier Gold Project, Stewart, British Columbia, Canada
Ascot Resources Limited (2020-05-22): Premier & Red Mountain Gold Project Feasibility Study NI 43-101 Technical Report, British Columbia
EMPR PFD 802361