Occurrence Details

Occurrence Number:
116B 198
Occurrence Name:
Golden Deposit
Occurrence Type:
Hard-rock
Status:
Past Producer
Date printed:
10/7/2024 11:25:02 AM

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General Information
Capsule
Work History

General Information

Primary Commodities: gold
Aliases: Brewery Creek
Deposit Type(s): Epithermal Au-Ag: Low Sulphidation, Porphyry-related Au
Location(s): N - W
NTS Mapsheet(s): 116B01
Location Comments: Location from satellite imagery and company location map
Hand Samples Available: No
Last Reviewed:

Capsule

Cretaceous (91 Ma) Tombstone Suite monzonite and quartz monzonite intrudes Paleozoic Earn and Road River Groups lithologies as a series of semi-conformable sills along a 15km strike length defining the Brewery Creek Reserve Trend.  Younger, Tombstone Suite syenite and biotite monzonite occur locally in the south-central portion of the property.  All compositional phases of the Tombstone Suite intrusives are known to host gold mineralization.

Sill emplacement is primarily controlled by a tectonized, graphitic argillite at the contact between the Earn and Road River Groups.  This contact is also the locus of NNE-directed thrust faulting that has placed thin (<150 m thick) sequences of Silurian siltstone against Devonian siliciclastic rocks.  The age of faulting is probably related to earlier Mesozoic compression along the Dawson, Tombstone and Robert Service Thrust Faults and the closing of the Selwyn Basin.

Brewery Creek deposits exhibit characteristics of both epithermal type and intrusive-related gold systems. It is generally considered to be an alkalic intrusion-associated gold deposit, as most of the mineralization is concentrated within or proximal to the monzonites of the Cretaceous Tombstone Suite.  Gold mineralization occurs in fracture-controlled quartz stockwork in both siliciclastic and intrusive rocks along an east-northeast striking, moderately south dipping structural trend known as the Brewery Creek Reserve Trend. 

Altered intrusive rocks are typically the preferred host for gold mineralization, however gold mineralization at the Pacific deposit exhibits a strong preference for a siltstone host, and in other deposits into adjacent intrusive rocks.  Major ore-controlling structures in intrusive rocks are related to a post Tombstone age, NNW compressional event that produced ESE and NE striking conjugate shears and ENE listric normal faulting localized along graphitic argillite/intrusive sill contacts. Approximately 85% of the mined ore was hosted by the various Cretaceous-aged quartz monzonite sills with the balance contained in silicified and brecciated Earn Group sediments.

The Golden deposit lies immediately east of Kokanee and may be a faulted offset of Kokanee.  It was mined by Viceroy from 4 pits; three were backfilled and reclaimed, the lowest and farthest south pit was not backfilled and remains in its fully mined state.  The resource is defined by 19 core holes and 363 RC holes, totaling 21,251 m. The zone is ~950 m in length, ~30 m wide, and ~150 m down dip.

Golden, like Kokanee, is hosted by the thickest and most extensive part of the Cretaceous quartz monzonite sill complex.  It is a nearly identical system structurally, and the styles of alteration identical.  Both of these resource areas show a bidirectionality to the strike direction of the highest-grade material, one northeast and the other northwest trending, forming a conjugate pattern.

Work History

Date Work Type Comment
6/1/2018 Drilling
6/1/2018 Lab Work/Physical Studies
6/1/2011 Drilling
6/1/2011 Drilling
6/1/2011 Ground Geophysics
6/1/2011 Airborne Geophysics
6/1/2011 Geochemistry
6/1/2011 Geochemistry
6/1/1998 Geochemistry
6/1/1998 Lab Work/Physical Studies
6/1/1998 Drilling
6/1/1998 Trenching
6/1/1998 Geochemistry
6/1/1997 Geochemistry
6/1/1997 Geology
6/1/1997 Geochemistry
6/1/1997 Drilling
6/1/1997 Trenching
6/1/1997 Geochemistry
6/1/1996 Geochemistry
6/1/1996 Drilling
6/1/1996 Other
6/1/1996 Geochemistry
6/1/1996 Drilling
6/1/1996 Trenching
6/1/1996 Geochemistry
6/1/1996 Geochemistry
6/1/1996 Development, Surface
6/1/1994 Lab Work/Physical Studies
6/1/1994 Geochemistry
6/1/1994 Lab Work/Physical Studies
6/1/1994 Geochemistry
6/1/1994 Drilling
6/1/1994 Drilling
6/1/1994 Studies
6/1/1994 Trenching
6/1/1994 Geochemistry
6/1/1994 Geology
6/1/1993 Lab Work/Physical Studies
6/1/1993 Airphotography
6/1/1993 Studies
6/1/1993 Lab Work/Physical Studies
6/1/1993 Development, Surface
6/1/1993 Geochemistry
6/1/1993 Drilling
6/1/1993 Studies
6/1/1993 Lab Work/Physical Studies
6/1/1993 Geochemistry
6/1/1992 Geochemistry
6/1/1992 Studies
6/1/1992 Other
6/1/1992 Other
6/1/1992 Geochemistry
6/1/1992 Drilling
6/1/1992 Ground Geophysics
6/1/1992 Ground Geophysics
6/1/1992 Lab Work/Physical Studies
6/1/1992 Trenching
6/1/1992 Geochemistry
6/1/1991 Geochemistry
6/1/1991 Drilling
6/1/1991 Studies
6/1/1991 Other
6/1/1991 Lab Work/Physical Studies
6/1/1991 Drilling
6/1/1991 Ground Geophysics
6/1/1991 Trenching
6/1/1991 Geochemistry
6/1/1991 Geochemistry
6/1/1991 Geology
6/1/1991 Development, Surface
6/1/1990 Lab Work/Physical Studies
6/1/1990 Geochemistry
6/1/1990 Drilling
6/1/1990 Geochemistry
6/1/1990 Drilling
6/1/1990 Ground Geophysics
6/1/1990 Ground Geophysics
6/1/1990 Lab Work/Physical Studies
6/1/1990 Trenching
6/1/1990 Geochemistry
6/1/1990 Geochemistry
6/1/1990 Geochemistry
6/1/1990 Geology
6/1/1989 Geochemistry
6/1/1989 Drilling
6/1/1989 Geochemistry
6/1/1989 Drilling
6/1/1989 Ground Geophysics
6/1/1989 Ground Geophysics
6/1/1989 Pre-existing Data
6/1/1989 Trenching
6/1/1989 Geochemistry
6/1/1989 Geochemistry
6/1/1989 Geology