A NEW LOOK: GEOLOGY OF THE BEARTRACK GOLD PROJECT - American Exploration & Mining Association - Revival ...
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TSX-V: RVG revival-gold.com OTCQB: RVLGF A NEW LOOK: GEOLOGY OF THE BEARTRACK GOLD PROJECT American Exploration & Mining Association Spokane, Washington December 6, 2018 TSX-V: RVG | OTCQB: RVLGF 1
Disclaimer
This document has been prepared by Revival Gold Inc. (“Revival Gold” or, the “Company”) solely for the use in the presentation being given in connection with the recipient’s evaluation of the Company which is defined and
outlined further herein. It is a presentation of information about the Company’s activities as the date of the presentation. It is information in a summary form and does not purport to be complete. It is not intended to be
relied upon as advice to investors or potential investors and does not take into account the investment objectives, financial situation or needs of any particular investor. These should be considered, with or without
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The information contained in this presentation is derived from estimates made by the Company, information that has been provided to the Company by other parties, and otherwise publicly available information
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looking information include, but are not limited to failure to identify mineral resources, failure to convert estimated mineral resources to reserves, the inability to complete a feasibility study which recommends a
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reclamation costs varying significantly from estimates and the other risks involved in the mineral exploration and development industry, and those risks set out in the Company’s public documents filed on SEDAR. Although
the Company believes that the assumptions and factors used in preparing the forward-looking information in this presentation are reasonable, undue reliance should not be placed on such information, which only applies
as of the date of this presentation, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward-looking
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or any of the assets, business or undertaking described herein nor shall it or any part of it form the basis of or be relied on in connection with, or act as any inducement to enter into, any contract or commitment whatsoever.
Recipients of this presentation who are considering an investment in the Company are reminded that any such purchase or subscription must not be made on the basis of the information contained in this presentation but
are referred to the entire body of publicly disclosed information regarding the Company.
This presentation is being supplied to you solely for your information and may not be reproduced, further distributed or published in whole or in part by any other person. Distribution of this presentation may be restricted
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presentation nor any copy of it may be taken or transmitted into the United States of America or distributed directly or indirectly, in the United States of America or to any resident thereof except in compliance with U.S.
securities laws.
The technical and scientific information in this document was reviewed and approved by Steven T. Priesmeyer, C.P.G., VP, Exploration and a Qualified Person under National Instrument 43-101.
TSX-V: RVG | OTCQB: RVLGF 2Location Lemhi County
• Located in east-central
Idaho on USFS land 20
kilometers west of
BEARTRACK-ARNETT
Salmon, population
3,100
• Access from Idaho Falls,
ID to the south or
Idaho Cobalt Otis Gold-Kilgore Missoula, MT to the
north; drive time is
Midas Gold-Stibnite approximately three
hours in either case
LEMHI COUNTY
• Drive time from Salmon
is approximately one
50 miles
80 kilometres hour
Source: Revival Gold
TSX-V: RVG | OTCQB: RVLGF 3Beartrack & Arnett History
1866: Placer gold discovery in Napias Creek; production from drainage basin
estimated at 600K oz. Au (Johnson et al, 1998)
1890: First lode claims patented and development work begins
1950s: James Clutis recognized bulk mining potential at Arnett; staked
unpatented claims
1970s: Various companies evaluate Arnett (Cyprus, Pegasus, British Petroleum
Minerals etc.)
1986: American Gold Resources (AGR) acquires Arnett property
1987: Canyon Resources discovers North orebody at Beartrack
1988: Project acquired by Burlington Northern (Meridian Minerals); discovery of
South orebody
1994: Beartrack Mine development initiated; mining initiated in South Pit
2000: Beartrack Open Pit mining ends
2002: Active pad leaching terminated (607,500 oz. Au production)
2012: Meridian initiated 3 year exploration program to evaluate deep potential
2013: Exploration program terminated; 21 holes demonstrate continuity of
mineralization at depth
2017: RVG signs agreements for Arnett in June 2017 & Beartrack in August 2017
TSX-V: RVG | OTCQB: RVLGF 5Beartrack 2018 Resource
Tonnes Gold Grade Contained Gold
Resource Category1-4
(‘000) (g/t Au) Ounces (‘000)
Indicated Heap Leach 5 12,060 0.71 276
Indicated Mill 21,305 1.37 938
Total Indicated 33,365 1.13 1,214
Inferred Heap Leach 5 2,091 0.81 54
Inferred Mill 14,812 1.49 710
Total Inferred 16,903 1.41 765
1. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. It is reasonably expected that most of Inferred Mineral
Resources could be upgraded to Indicated Mineral Resources with continued exploration.
2. Mineral Resources were tabulated for model blocks with positive net value that lie within an optimized conceptual pit. Economic parameters -
US$1,300 Au, Heap Leach Recovery: 85% of cyanide soluble gold, Mill Recovery: 84% of contained gold by fire assay, Mining Cost: US$2.66/tonne, Heap
Leach Processing Cost: U$5.00/tonne, Mill & POX Processing Cost US$17.00/tonne, G&A Cost: US$1.75/tonne, Pit Slope Angle: 45 degrees. The price,
recovery and cost data translate to a breakeven gold cut-off grade of approximately 0.61 g/t gold and 0.26 g/t cyanide soluble gold for mill and heap
leach respectively.
3. Rounding may result in apparent discrepancies between tonnes, grade, and contained metal content.
The estimate of mineral resources may be materially affected by geology, environment, permitting, legal, title, taxation, socio-political, marketing
other relevant issues.
4. The effective date of the mineral resource estimate is April 18, 2018.
5. Heap Leach material defined by cyanide soluble grade leach characteristics.
See Revival Gold Beartrack 43-101 Technical Report dated July 12, 2018 for further details.
TSX-V: RVG | OTCQB: RVLGF 6Geology of Idaho
MAJOR GEOLOGIC COMPONENTS
• Proterozoic metasedimentary rocks
1470-1390 Ma;
• Proterozoic rapakivi granite 1370 Ma
• Cordilleran Fold & Thrust Belt
130-60 Ma (Sevier Orogeny)
• Idaho Batholith
Atlanta lobe: 98-67 Ma
Bitterroot Lobe:66-54 Ma
• Trans-Challis Fault System
Beartrack & (Idaho portion of the Great Falls Tectonic
Arnett
Zone) Proterozoic to Quaternary
• Challis volcanics & related intrusives
51-43 Ma
• Basin and Range
17-5 Ma
• Snake River Plain
12-4 Ma
Source: Idaho Geological Survey
TSX-V: RVG | OTCQB: RVLGF 7Regional Geology Mackinaw District
• Proterozoic metasedimentary
rocks (greenschist facies)
• Big Creek Quartzite
• Gunsight Fm.
• Swauger Fm.
• Yellowjacket Fm.
• Proterozoic rapakivi granite
• Cambro-Ordovician syenite
• Tertiary granite (Bobcat Gulch
& Arnett)
• Eocene Challis Volcanics &
dikes
• Quaternary deposits (alluvial
gravels & glacial till)
• Panther Creek Fault Zone &
Coiner Fault
Source: Meridian Gold; Evans and Green, 2003; Bookstrom et al, 2016
TSX-V: RVG | OTCQB: RVLGF 8Beartrack Geologic Characteristics
• Primary Commodity: Au; Ag from earlier stage of mineralization
• Host Rock: Proterozoic rapakivi granite & Proterozoic metasedimentary rocks; mafic
to felsic dikes
• Ore Control: NE-trending Panther Creek Fault Zone (PCFZ); NE-dipping low-angle
structures; lithology
• Style of Mineralization: stockwork, quartz veins & disseminated
• Sulfide Mineralogy: pyrite & arsenopyrite
• Gangue Mineralogy: quartz, sericite ± Fe-carbonate
• Alteration: sericitic, silicification ± Fe-carbonate, potassic
• Sericitic alteration of primary/metamorphic biotite and feldspar
• Silicification in breccia zones adjacent to the PCFZ
• Sparse Fe-carbonate in veinlets and disseminated in wallrock
• Secondary K-feldspar; relationship with Au mineralization unknown
• Geochemistry: As with moderately anomalous W & weakly anomalous Mo;
• local Cu, Pb, Zn, Ag & local Sb, Hg related to older & younger events respectively
• No discernable vertical or horizontal zonation
• Age of Mineralization: 65-69 Ma (Ar40/Ar39 from sericite & microcline)
TSX-V: RVG | OTCQB: RVLGF 9Beartrack Geology & Mineralization
• Mineralization controlled by the PCFZ
• Proterozoic metasedimentary rocks west
of the PCFZ and Proterozoic rapakivi
granite east of the PCFZ
• Five known deposits over five kilometers
of the PCFZ:
• North
• Mason-Dixon
• South
• Moose Creek-Allen Creek
• Joss
• North Pit mineralization primarily hosted
by Proterozoic rapakivi granite
• South Pit mineralization primarily hosted
by Proterozoic metasedimentary rocks
TSX-V: RVG | OTCQB: RVLGF 10Beartrack Panther Creek Fault Zone
• The PCFZ is the primary structural control on the Beartrack gold mineralization as well
as several other gold prospects in the region
• Mapped for over five kilometers on the property and traced for over 70 kilometers
regionally
• Strikes 025o – 030o; dips vary from 75o SE to 48o NW
• Varies in width from a few meters to 60 meters or more
• At Beartrack the PCFZ occurs at, or near, the contact between the Proterozoic rapakivi
granite & metasedimentary rocks
• Exhibits a long history of activity ranging from early ductile (foliated rock) deformation
to late brittle deformation (breccia and gouge zones):
• Mylonitic foliation of Proterozoic rapakivi granite & metasedimentary rocks
• Intrusion of dikes of various compositions and ages
• Mylonitic foliation of some mafic dikes
• Gouge & breccia zones
• Right-lateral strike slip movement
TSX-V: RVG | OTCQB: RVLGF 11Beartrack Rapakivi Granite - Mylonite
Fresh, undeformed Altered & mylonitized
Proterozoic rapakivi granite Proterozoic rapakivi granite
TSX-V: RVG | OTCQB: RVLGF 12Beartrack Post-Mineralization Fault Breccia TSX-V: RVG | OTCQB: RVLGF 13
Beartrack Stages of Mineralization
Three stages of mineralization have been recognized:
• Stage I - quartz-plagioclase-biotite-magnetite-barite veins are pre-Au
mineralization; coeval with leucogranite dikes
• Stage IIA - sheeted NE-trending quartz-pyrite±galena±sphalerite±chalcopyrite
veins; formed during NW-SE extension
• Associated elements: Cu-Pb-Zn-Ag-Cd-Fe
• Stage IIB - bull quartz + coarse-grained pyrite veins in shoots formed in dextral
jogs along the PCFZ; no known associated Au mineralization
• Stage IIC - fine-grained, dark gray quartz+arsenopyrite+pyrite veins.
Main stage Au mineralization.
• Associated elements: As-Fe-Au±W-Mo
• Stage III – epithermal quartz+pyrite+galena veins that cross-cut the PCFZ;
age unknown but possibly related to the Challis Volcanics
• Associated elements: Hg-Sb-Ba
TSX-V: RVG | OTCQB: RVLGF 14Beartrack Stage II Mineralization
Stage IIA – Quartz-
pyrite±galena±chalcopyrite
veinlets
Stage IIB – Bull quartz with coarse-
grained pyrite
Stage IIC – Quartz-arsenopyrite-
pyrite veinlets
TSX-V: RVG | OTCQB: RVLGF 15Beartrack Stage IIC Mineralization
Quartz-arsenopyrite-pyrite stockwork in Quartz-arsenopyrite-pyrite stockwork in
Proterozoic rapakivi granite Proterozoic metasedimentary rocks
TSX-V: RVG | OTCQB: RVLGF 16Beartrack Mineralized Over 600 Meters Vertically
96-663
36.6 m @ 2.54 g/t Au DD-002
70.4 m @ 1.84 g/t Au
DD-097
44.2 m @ 2.86 g/t Au
29.0 m @ 1.95 g/t Au
195.7 m @ 2.33 g/t Au
600 m
BT18-209D
69.5 m @ 1.89 g/t Au
BT12-179AD
32.3 m @ 2.36 g/t Au
Incl. 2.7 m @ 8.53 g/t Au
OPEN AT DEPTH
Source: Revival Gold
TSX-V: RVG | OTCQB: RVLGF 17Beartrack Longitudinal Section
OPEN TO
4,000 m
SOUTH
Source: Revival Gold
TSX-V: RVG | OTCQB: RVLGF 18Beartrack Controls on Mineralization
• Structural: Primary control is the PCFZ
• Lithologic: Mineralization is preferentially hosted by quartzite rather than
micaceous metasediments, and by granite where quartzite is not in
contact with PCFZ
• There are two controls on the plunge and distribution of high-grade
mineralization:
• Intersection of NE-dipping faults with the PCFZ; plunge is shallow and
to the NE
• Intersection of bedding with the PCFZ; plunge is moderate to the SW
TSX-V: RVG | OTCQB: RVLGF 19Beartrack Controls on Mineralization
Panther Creek
Fault Zone
Source: Revival Gold
TSX-V: RVG | OTCQB: RVLGF 20Beartrack NE-Dipping Structures
15 m
Source: Revival Gold
TSX-V: RVG | OTCQB: RVLGF 21Beartrack NE-Dipping Structures
15 m
Source: Revival Gold
TSX-V: RVG | OTCQB: RVLGF 22Beartrack Summary of Geologic Characteristics
BEARTRACK SUMMARY
• Sulfide mineralogy: pyrite & arsenopyrite
• Gangue mineralogy: quartz, sericite ± Fe-carbonate
• Geochemistry: As, W & Mo
• local Cu, Pb, Zn & Ag and local Sb & Hg related to older & younger events
• Alteration: sericitic, silicification, ± Fe-carbonate, potassic
• Ore controls: structure (PCFZ, NE-dipping faults) & lithology
• Host rock: Proterozoic metasedimentary and intrusive rocks
• Sulfide content: 1-3%
• No vertical zonation over more than 600 m & continuity at depth
• Association with trans-crustal fault system
• Age of Mineralization: 65-69 Ma (Ar40/Ar39 from sericite & microcline)
TSX-V: RVG | OTCQB: RVLGF 23Orogenic Au Comparison
OROGENIC Au BEARTRACK
• Temperature: 200oC-700oC • Fluids: unclear but reported to be in the
range for orogenic Au deposits
• Fluids: 3-15 eq. wt% NaCl & ≥5 mol% CO2
• Ore mineralogy: pyrite, arsenopyrite
• Ore mineralogy: pyrite, arsenopyrite,
galena, sphalerite • Gangue mineralogy: quartz, sericite
• Geochemistry: Fe, As, Au ± W, Mo
• Gangue mineralogy: quartz, carbonate,
chlorite, sericite • Alteration: sericite, silicic, ± Fe-carbonate,
potassic
• Geochemistry: Au, Ag, As, Sb, K, W, Te & Mo • Hosted by Proterozoic metasedimentary
• Alteration: carbonate, sericite and intrusive rocks
• Occurs in deformed metamorphic terrane • Sulfide content 1-3%
• Spatially associated with a trans-crustal
• Sulfide content ≤ 3-5%
fault zone; granitic magmatism (?)
• Spatially associated with both a trans-
crustal fault zone & granitic magmatism
TSX-V: RVG | OTCQB: RVLGF 24Regional Geology Geochronology
IGNEOUS EVENTS MINERALIZING EVENTS
• Proterozoic rapakivi granite 1370 Ma • Idaho Cobalt Belt ~1370 Ma
• Cambro-Ordovician syenite 486 Ma • Arnett Creek – Au3 80 Ma
• Idaho Batholith • ARN Mo target3 77 Ma
Atlanta lobe1 98-67 Ma • Elk City – Au4 71 Ma
Bitterroot lobe1 66-54 Ma • Beartrack – Au3 68 Ma
• Eocene granite/granodiorite2 49 Ma • Ditch Creek – Au3 66 Ma
• Challis volcanics, plutons & 51-43 Ma • Bobcat Gulch porphyry Cu-Mo 49 Ma
dikes1 • Challis-related epithermal Au- 45-43 Ma
Ag4
3 Unpublished data
1 Gaschnig R. M. et al, 2011, Isotopic Evolution of the Idaho Batholith and
Challis Intrusive Province, Northern US Cordillera: Journal of Petrology, 4 Lund, K., Snee, L.W. and Evans, K.V., 1986, Age and Genesis of Precious
v. 52, p2397-2429. Metal Deposits, Buffalo Hump District, Central Idaho: Implications for
Depth of Emplacement of Quartz Veins; Econ. Geol, v. 81, p. 990-996.
2 Bennett, E.H. and Knowles, C.R.,1983,Tertiary Plutons and Related Rocks
in Central Idaho: USGS Bulletin-F, F81-F98. 5 Fisher, F.S., 1983, Summary of the Geology, Mineral Deposits, and
Resource Potential for Selected Commodities in the Challis
Quadrangle: USGS Bulletin 1658-A, A1-A27.
TSX-V: RVG | OTCQB: RVLGF 25District Geology Geochronology
49 Ma
77 Ma
80 Ma 68 Ma
Source: Meridian Gold; Evans and Green, 2003; Bookstrom et al, 2016
TSX-V: RVG | OTCQB: RVLGF 26Beartrack Intrusives Interpreted from Airborne Magnetics
Bobcat Gulch
porphyry
Possible Buried
Intrusives
Possible Buried
Intrusives
Beartrack mine
Arnett syenite
TSX-V: RVG | OTCQB: RVLGF 27Beartrack RVG Geochronology Sampling
Quartz-plagioclase-biotite- Chloritized mafic dike
magnetite-barite vein
Altered quartz-eye rhyolite dike
TSX-V: RVG | OTCQB: RVLGF 28Beartrack Contributors
• Authors:
o Steve Priesmeyer
o Tony Norman
o Larry Hillesland
o Pete Blakely
• Thanks to:
o Mark Hawksworth and all the
geologists past and present that
contributed to the project
TSX-V: RVG | OTCQB: RVLGF 29Beartrack Thank You! TSX-V: RVG | OTCQB: RVLGF 30
TSX-V: RVG revival-gold.com
OTCQB: RVLGF
REVIVAL GOLD INC.
145 King St. W., Suite 2870
Toronto, Ontario
M5H 1J8
STEVE PRIESMEYER | VP Exploration
ANDREA TOTINO | IR Manager
info@revival-gold.com
416-366-4100
TSX-V: RVG | OTCQB: RVLGF 31You can also read