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Canada
Morrison Project

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 Location:
35 km N from Granisle, British Columbia, Canada

  Project Contacts:
1166 Alberni St. Suite 1103
Vancouver
British Columbia, Canada
V6E 3Z3
Phone  ...  Subscription required
Fax604.687.5995
EmailEmail
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
Mine Life21 years (as of Jan 1, 2009)
February 9, 2022 - Pacific Booker Minerals Inc. (TSXV: BKM) (OTC Pink: PBMLF) is announcing that an EAC will not be issued for the Morrison Copper/Gold Project, following a decision by George Heyman, Minister of Environment and Climate Change Strategy, and Bruce Ralston, Minister of Energy, Mines and Low Carbon Innovation.

The Company has been advised that the Environmental Assessment Act allows PBM to submit another proposal based on a new project design in the future.

Management is currently considering the options available for a path forward for the project.
Latest NewsPacific Booker Minerals Inc.: Morrison Copper/Gold Mine not granted an environmental assessment certificate     February 7, 2022


Owners

Source: p. 24
CompanyInterestOwnership
Pacific Booker Minerals Inc. 100 % Direct

Deposit Type

  • Porphyry


Summary:

The Morrison deposit is classified as a calc alkaline copper-gold porphyry with an alkalic trace element signature (Ogryzlo et al., 1995), which may reflect a mixed alkaline/calc alkaline parentage for the Babine Igneous Suite. The geologic settings of the host rock relationships, structural development, and the general style of the hydrothermal alteration and mineralization at Morrison are similar to other porphyry deposits in the northern Babine Lake area.

Hydrothermal alteration at Morrison is similar to that at other Babine porphyry copper deposits (Carson and Jambor, 1974). Alteration is concentrically zoned with a central biotite (potassic) alteration core surrounded by a chlorite-carbonate zone. A third alteration facies, clay-carbonate alteration, is considered retrograde and associated with major faults and shears and subsidiary fracture zones. No well developed phyllic zone has been identified.

Sulphide mineralization at Morrison shows strong spatial relationships with the underlying intrusive (BFP) plug and associated alteration zones. The central copperrich core is hosted mainly within a potassically altered BFP plug with intercalations of older siltstone. This plug was initially intruded into the siltstone unit as a near-vertical subcircular intrusion approximately 700 m in diameter. It was subsequently disrupted by the East and West Faults and now forms an elongated body extending some 1,500 m in the northwest direction.

Chalcopyrite is the primary copper-bearing mineral and is distributed as fine grained disseminations in the BFP and siltstone, as fracture coatings or as stockworks of quartz veinlets in which the chalcopyrite occurs as coarse grains (1-3 mm) within veinlets that range from 1.0 mm to approximately 15 mm in width. Minor bornite occurs within the higher grade copper zones as disseminations and associated with the quartz-sulphide stockwork style of mineralization.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The open pit mine has been designed for four phases of pit development by conventional truck-shovel methods. The overall life-of-mine (LOM) strip ratio is relatively low at 0.825:1.0 waste to ore.

The current development concept for the mine is as follows:
- Phase I: West pit starter pit with a ramp that commences on the north side counter clockwise
- Phase II: East pit with stand alone access road from the north clockwise
- Phase III: West pit expansion with multiple switch backs
- Phase IV: East pit expansion.

When the pit bottom of Phase I and Phase II are mined, the pit bottom will be approximately 40 m wide.

Phase III and Phase IV pit expansion phases are typically no less than 60 m in width, which should provide adequate room for efficient mine operations.


Crushing and Grinding


Processing

  • Flotation

Source: Subscription required

Summary:

Processing of the ore will be performed on-site using crushing, grinding, and flotation to recover copper and molybdenum concentrates.

The flowsheet design is based on 30,000 t/d mill capacity with an overall mill availability of 92%, which allows for scheduled and non scheduled maintenance.

Run-of-mine (ROM) material from the pit is delivered by 227 t capacity haul trucks that dump directly to the 1,372 mm x 1,905 mm primary gyratory crusher. The gyratory crusher discharge is collected by a 1,830 mm apron feeder under the crusher. The feeder then transfers the crushed ore onto a 1,524 mm conveyor, which in turn discharges onto the crushed ore stockpile. The total live capacity of the stockpile is 30,000 t. A dust collection system is installed to minimize dust emissions.

Three 1,200 mm x 5,500 mm apron feeders withdraw ore from the stockpile onto the 1,372 mm wide x 201,300 mm long primary sizing screens feed conveyor at an average rate of 1,359 tonnes ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Copper Recovery Rate, % 84
Copper Head Grade, % 0.33

Projected Production:

CommodityUnitsLOM
Copper kt 2,345
All production numbers are expressed as concentrate.

Operational Metrics:

Metrics
Daily milling rate 30,000 t *
Stripping / waste ratio 0.82 *
Daily mining rate 30,000 t *
Waste tonnes, LOM 184,121 kt *
Ore tonnes mined, LOM 224,252 kt *
Total tonnes mined, LOM 408,371 kt *
Tonnes milled, LOM 224 Mt *
Plant annual capacity 11 Mt of ore *
* According to 2009 study.

Reserves at March 12, 2009:

CategoryTonnage CommodityGrade
Measured 98,142 kt Copper 0.4 %
Measured 98,142 kt Gold 0.19 g/t
Measured 98,142 kt Molybdenum 0.005 %
Measured 98,142 kt Copper Equivalent 0.47 %
Indicated 110,108 kt Copper 0.39 %
Indicated 110,108 kt Gold 0.19 g/t
Indicated 110,108 kt Molybdenum 0.005 %
Indicated 110,108 kt Copper Equivalent 0.46 %
Measured & Indicated 208,250 kt Copper 0.39 %
Measured & Indicated 208,250 kt Gold 0.19 g/t
Measured & Indicated 208,250 kt Molybdenum 0.005 %
Measured & Indicated 208,250 kt Copper Equivalent 0.46 %
Inferred 62,839 kt Copper 0.38 %
Inferred 62,839 kt Gold 0.19 g/t
Inferred 62,839 kt Molybdenum 0.005 %
Inferred 62,839 kt Copper Equivalent 0.46 %

Commodity Production Costs:

CommodityUnits2021
Assumed price Molybdenum USD 29.2 / lb *
Assumed price Copper USD 2.75 / lb *
Assumed price Gold USD 658.32 / oz *
* According to 2009 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2021
OP mining costs ($/t mined) CAD 1.49 *
OP mining costs ($/t milled) CAD  ......  Subscription required
Processing costs ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2009 study.
Subscription required - Subscription is required.

2009 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of March 12, 2009:
HME TypeModelSizeQuantity
Crane 60 t ....................... Subscription required
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Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Feasibility Study Report 2009
Subscription required - Subscription is required.

News:

NewsDate
Pacific Booker Minerals Inc.: Morrison Copper/Gold Mine not granted an environmental assessment certificate February 7, 2022
Pacific Booker Minerals Inc. Announces Morrison Mining Lease Extended April 17, 2020

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