THORN CAMP / AIRSTRIP - Northwest British Columbia - Brixton Metals
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
THORN CAMP / AIRSTRIP Northwest British Columbia
SAFE HARBOUR STATEMENT
Information set forth in this presentation involves forward-looking statements, including but not limited to comments
regarding timeline, predictions and projections. Forward-looking statements are statements that relate to future, not past,
events. In this context, forward-looking statements often address expected future business and financial performance, and
often contain words such as "anticipate", "believe", "plan", "estimate", "expect", and "intend", statements that an action or
event "may", "might", "could", "should", or "will" be taken or occur, or other similar expressions. By their nature, forward-
looking statements involve known and unknown risks, uncertainties and other factors which may cause our actual results,
performance or achievements, or other future events, to be materially different from any future results, performance or
achievements expressed or implied by such forward-looking statements. Such factors include, among others, the following
risks: the need for additional financing; operational risks associated with mineral exploration; fluctuations in commodity
prices; title matters; and the additional risks identified on the Company’s website or other reports and filings with the TSX
Venture Exchange and applicable Canadian securities regulators. Forward-looking statements are made based on
management's beliefs, estimates and opinions on the date that statements are made and the Company undertakes no
obligation to update forward-looking statements if these beliefs, estimates and opinions or other circumstances should
change, except as required by applicable securities laws. Investors are cautioned against attributing undue certainty to
forward-looking state. The historical estimates contained in this presentation have not been verified as current mineral
resources. In general, Brixton Metals believes that the historical estimates are a reasonable estimate based on data
available at the time and that there is potential to expand this historical estimate to a significant drill discovery through an
initial round of exploration drilling and by closer-spaced infill drilling to standards suitable for formal resource estimation. A
qualified person has not done sufficient work to classify the historical estimate as current mineral resources or mineral
reserves, and Brixton Metals is not treating the historical estimate as current mineral resources or mineral reserves.
No assurances can be made that exploration targets will be developed into resources or reserves. The exploration targets
are conceptual in nature and relies on projections of mineralization that are beyond the standard CIM classification of
mineral resources and should not be relied on as mineral resource estimates
Mr. Gary R. Thompson, P.Geo. is the QP who assumes responsibility for the technical contents of this Presentation.
2
THORN PROJECT SUMMARY
A District Scale Exploration Project
Alaska BC Wholly owned 2,600 km2 claim block, the
largest mineral tenure in the Golden Triangle
Accessed via 45 minute fixed-wing flight
from Whitehorse, Yukon
Potential access to USA tide water and road
access to the Golden Bear Mine
Porphyry Cu-Au-Ag-Mo District
21.5 Moz AgEq Inferred resource (7.4 Mt at
89.75 g/t AgEq) (open for expansion)
Epithermal & sediment hosted Au-Ag
Signed Exploration Agreement with the Taku
River Tlingit First Nations 2013 and Engaged
with Tahltan First Nations Central
Government
3
THORN PROJECT SUMMARY
10,000 to 30,000m drilling planned for 2021
75-80 km mineralized megatrend
Includes several deposit types:
Cu-Au-Ag-Mo porphyry (Camp Creek, Metla, East, West and South targets)
Au-Ag sediment hosted (Outlaw)
High sulphidation Cu-Ag-Au veins-breccia and diatreme Ag-Au-Cu-Pb-Zn (Camp Creek)
Au-Ag volcanic hosted quartz-stockwork (Trapper)
Long-lived mineralizing system:
• Evidence for Jurassic, Cretaceous and Eocene mineralization
Structurally well-prepared rocks
Favourable Stuhini host rocks in vicinity of “Red-line” boundary
Remains largely underexplored
Recent Geochem work has increased the number of targets
4
THORN WORK HISTORY
Original discovery was in 1959 by Kennco
40,000m of drilling to date within 220 holes
31,070 soils, 8,185 rocks, 1,203 stream sediment samples
40 line-km IP, 6 line-km of MT, 467-line-km of airborne EM
Structural studies, SRK 2013
New camp and airstrip established in 2011, expanded to 1000m
Maiden resource SRK 2014 (Oban Zone, Talisker Zone, Glenfiddich Zone)
Inferred 21.5M AgEq ounces (7.4 Mt at 89.75 g/t AgEq) remains open
768sqkm of LIDAR surveys completed
Multispectral ASTER-SENTINAL 2 data acquisition property wide
80sqkm of airborne radiometrics & 200sqkm airbourne magnetics
5
ALTERATION FOOTPRINT
6
BCGS RGS RE-ANALYSIS
BRITISH COLUMBIA
THORN PROJECT
Newly acquired ground
Geoscience BC Report 2018-14
Geoscience BC Report 2018-14
Porphyry Copper Weighted Sums using residuals
following multiple regression analysis against
principal components
Stream sediment re-analysis
Resulted in new staking by Brixton 7
REGIONAL STREAM SEDIMENT GEOCHEM
Geoscience BC Report 2018-14
8 8
TARGETS – COPPER GEOCHEMISTRY
9
TARGETS – GOLD GEOCHEMISTRY
Au ppb
102020 SOIL GEOCHEM SUMMARY
112020 ROCK GEOCHEM SUMMARY
12THORN GEOLOGY
13GEOCHRONOLOGY
Black circles are U/Pb results and black diamonds are Ar/Ar data
14 (Simmons, 2005). Open circles are U/Pb results and open
diamonds are Ar/Ar data (Mihalynuk, 2003). Errors are given at 2 sigma levels.
14CAMP CREEK ALTERATION 15 15
CAMP CREEK COPPER GEOCHEM
Surface rock samples are
from high-sulphidation
veins 0.1m to 5m in width
(NE trending) including
breccia
NOTE: Significant silver-
gold grades occur with Cu
are not show here
16CAMP CREEK DRILLING
THN19-150
THN19-162
New Porphyry Discovery
Plan Map
17CAMP CREEK DRILLING
New Porphyry Discovery
See Video link below
Camp Creek Drilling
and IP Chargeability 3D
model (click link below)
554.70m of 0.57 g/t Au,
0.24% Cu, 43.18 g/t Ag,
0.55% Zn, 0.28% Pb
or 1.23% CuEq
New Porphyry Discovery
For CuEq values the average daily prices during last 12 months of
Cu US$2.70/lb, Au $1759/oz, Ag $19.60/oz, Mo $11.20/lb were
used
18CAMP CREEK THN20-181 STRIP-LOG
Increasing grades with depth, ending in mineralization
19CAMP CREEK THN20-181 CORE
Hole From (m) To (m) Interval (m) Cu (ppm) Au (g/t) Ag (g/t) Mo (ppm) CuEq (%) AuEq (g/t)
THN20-181 518.00 957.42 439.42 1889.60 0.07 2.41 139.83 0.34 0.35
Including 679.00 957.42 278.42 2347.42 0.09 2.57 195.83 0.43 0.45
Including 852.00 957.42 105.42 3201.80 0.11 3.75 335.41 0.60 0.64
Including 951.20 957.42 6.22 7745.34 0.21 7.62 2934.77 2.27 2.39
20CAMP CREEK THN19-150
HOLE From To Interval Au Ag Cu Pb Zn AuEq
ID (m) (m) (m) g/t g/t % % % g/t
THN19-150 97.00 651.70 554.70 0.57 43.18 0.24 0.28 0.55 1.97
including 97.00 374.80 277.80 0.86 75.28 0.28 0.48 0.88 3.06
including 97.00 232.96 135.96 1.35 133.62 0.31 0.89 1.61 5.00
and/incl. 100.95 112.90 11.95 2.51 156.05 0.31 0.77 3.59 7.75
including 149.65 168.58 18.93 2.49 170.43 1.54 0.92 1.22 8.25
including 155.65 161.65 6.00 3.37 257.77 3.56 0.92 1.01 13.16
and/incl. 252.96 301.10 48.14 0.63 40.05 0.55 0.15 0.20 2.18
and/incl. 414.35 430.35 16.00 0.46 18.95 1.38 0.27 0.40 3.22
including 418.35 424.35 6.00 0.44 34.67 2.82 0.44 0.63 5.84
and 786.70 829.06 42.36 0.15 3.06 0.02 0.02 0.11 0.30
From 421.1m From 296.5m
21CAMP CREEK OBAN X-SECTION
• Extended know polymetallic mineralization over 200m in 2019
VIEW TO SOUTHWEST
THN11-60
95.08 m of 1.71 g/t Au, 628.00 g/t Ag, 2.39%
Zn, 3.31% Pb, 0.12% Cu
AuEq g/t
THN12-84
310.00 m of 0.71 g/t Au, 105.82
g/t Ag, 1.76% Zn, 0.90% Pb
Numerous
porphyry-style
A and B veins
in clasts
hole 150
locally
chalcopyrite THN19-150
at depth 554.70 m of 0.57 g/t Au, 0.24% Cu, 43.18 g/t Ag,
0.55% Zn, 0.28% Pb
100 m THN19-150 Incl. 135.96m of 1.35 g/t Au, 133.62 g/t Ag,
drilled to 830m 22 0.31% Cu, 0.89% Pb, 1.61% Zn
22CAMP CREEK’s GLENFIDDICH ZONE
Enargite-
Drill hole traces projected
to surface showing >1 g/t -pyrite
AuEq or >0.65% CuEq vein
GLENFIDDICH ZONE 1.1m (True width) 10.62% Cu, 583 g/t Ag, 2.5 g/t Au
• Enargite-bearing D-veins (similarities to D
veins leading to discover of Resolution,
Arizona)
Thorn stock • Se (>2ppm) and Te (>3ppm) indicative of
proximity to porphyry Cu-Au
Structurally controlled high-
• 50 ppm Mo in bottom of TH86-4
sulphidation Au-Ag
23CAMP CREEK PORPHYRY INDEX
MDRU’s Porphyry Index
(Cu/10)+Mo+(10xW)+(20xSn) Proximal elements
THN19-162
(5xSb)+(20xTl)+Ag+As+Li Distal elements
vector to
porphyry
mineralization
Bouzari et al. 2019 porphyry
mineralization
24CAMP CREEK DRILL HOLE THN19-162 Cu ppm Au g/t Mo ppm Pb Zn THN19-162 Chalcopyrite/Pyrite Mineralization at 480m Depth Increasing grades with depth 25
THORN IGNEOUS COMPOSITION
26PORPHYRY TYPE AND IGNEOUS
COMPOSITION
272013 SRK STRUCTURAL STUDY
Dextral strike-slip fault
system
Magmatic-epithermal
system intruded active N-
trending Riedel fault
system
North-south master faults
control on mineralization
as well as intersection of
NE and E-NE faults to form
zones of dilation
Maximum dilation in the
NW/SE direction
28 28OUTLAW GOLD ZONE SUMMARY
Outlaw Zone (Large scale gold target)
Chevron Minerals initial work in the early 1980’s (soils/trenching/drilling).
Sediment hosted with multiple horizons of siltstone-graywacke interbeds.
Drilling by Brixton in 2014-2020 near surface strike of 750m Central Zone. West
Outlaw target was drilled for the first time in 2020 and surfaces rock samples
have returned the highest gold grades to date, 68.8 g/t Au
Geological unit has a strike of greater than 5km, gold-in-soil greater than 4km.
Hole 128 drilled 59.65m of 1.15 g/t Au, hole 133 drilled 52m of 0.94 g/t Au.
Porgera type? clastic-volcanoclastic, disseminated-stockwork-stratabound.
29OUTLAW GOLD ZONE
4km Gold-In-Soils Anomaly
12.5 g/t Au
14.5 g/t Au 68.8 g/t Au
22.9 g/t Au
4 KM
Rock
+10 g/t Au
30SEDIMENT HOSTED OUTLAW GOLD ZONE
2020 drill collars
Pre-2020 drill collars THN19-159
37.78m of 1.23 g/t Au from 95.00m
including 12.00m of 3.46 g/t Au,
including 1m of 24 g/t Au
A sediment hosted-
intrusion related gold-
silver zone
Near surface
Mineralization is hosted in
multi-stacked sub-
horizontal horizons
Open in several
directions 31CENTRAL OUTLAW TARGET
sediment-hosted gold mineralization near surface
32TRAPPER ACQUSITION
Visible GOLD in hole 11
Trapper acquisition (3,756 h)
consolidated the Thorn land
package adding a new gold trend
with significant upside.
2011 drilling
33TRAPPER GOLD TREND
6.5 g/t Au
47 g/t Au
36.9 g/t Au
34METLA ACQUISTION
The Metla acquisition of 6,413ha was strategic to the consolidation of the
Thorn porphyry district.
Metla is a known mineralized prospect discovered in 1957.
Trenching by Cominco in 1989 returned 4.6 g/t Au over 9 m.
Recent work identified new areas with high copper-gold values
Bornite-chalcopyrite-chalcocite-
malachite in Potassic Altered
Foliated Diorite Porphyry
35METLA COPPER GECHEM
36METLA RADIOMETRICS
Copper Geochem
Th/K ratio
37WEST TARGET COPPER GEOCHEM
38WEST TARGET RADIOMETRICS
Copper Geochem
Th/K ratioEAST TARGET COPPER GEOCHEM
402014 THORN BLOCK MODELS
16m of 3.13 g/t AuEq
49m of 2.26 g/t AuEq
95m of 16.15 g/t AuEq
2014 SRK Inferred Resource
Whittle shell on 3 zones
41OBAN MINERALIZATION & ALTERATION
22.0m to 23.0m:
1100 g/t Ag, 2.72 g/t Au, 7.8%Pb and 2.0% Zn
42GLENFIDDICH ZONE
Drill Hole THN13-121
2.2m (1.1 true width)
583 g/t Ag, 10.6% Cu, 2.5 g/t Au
Mineralization: Vuggy-quartz-pyrite-tetrahedrite-sulphosalts breccia
Alteration: silica-pyrophyllite-sericite, minor calcite-ankerite-chlorite
High Sulphidation Quartz-Sulphide Breccia
43
43TALISKER ZONE
Oban like
diatreme
northeast
Talisker-
under
cover
44
44QUARTZ-BARITE VEINS
VEIN: low sulphidation in Amarillo Creek
Mineralization:
Quartz-barite with 1% pyrite and 1% tetrahedrite and visible gold
Alteration:
Sercite-alanite-illite-kaolinte
Hosted by medium-grained feldspar-phyric porphyritic Thorn Stock
Thought to be related to the unconformity
Amarillo Creek
float: 265 g/t Au (8.4 oz/t) & 631 g/t Ag
tennantite-
tetrahedrite
Grain of native Au (~20 microns in length).
The gold precipitated with low temperature
radiating quartz-pyrophyllite clusters (gangue),
and is later than the tennantite-tetrahedrite
(grey). SEM shows an Ag concentration that is
quartz-pyrophyllite significant but much subordinate to Au.
45CAMP CREEK & OUTLAW
AIRBORNE MAGNETICS
TALISKER ZONE
OBAN ZONE
IJTF
GLENFIDDICH ZONE
OUTLAW ZONE
CHIVAS ZONE
46THORN MODELS
Sillitoe,
2010
: Conceptual model of hydrothermal alteration related to porphyry and epithermal mineralization
47THORN NEXT STEPS
Drilling at the Camp Creek/Trapper/Outlaw Zone to define resources
Conduct airborne Mobile MT / Magnetics/radiometric surveys , geological
and alteration mapping, geochronology studies
Collect an additional 10,000 soil-rock samples property wide
Conduct select high impact drilling for new discoveries
48BRIXTON METALS CORPORATION
1-604-630-9707 email: info@brixtonmetals.com brixtonmetals.com
Suite 551 – 409 Granville Street, Vancouver, BC, V6C 1T2 Canada
49You can also read
