Tajiri Identifies high-grade, Shallow, Sub- horizontal, Gold Shoot, at least 200m Wide & Open in all Directions at K5NW, Reo Project, Burkina Faso
Tajiri Identifies high-grade, Shallow, Sub-
horizontal, Gold Shoot, at least 200m Wide &
Open in all Directions at K5NW, Reo Project,
Burkina Faso
VANCOUVER, BC
,
Aug. 21, 2024
/CNW/ - Tajiri Resources Corp. (the "Company") (TSXV: TAJ) is
pleased to announce results of the relogging of historic shallow scout drill holes and the release of
previously un-reported drill intersections from the K5NW prospect, Reo Project,
Burkina Faso
(
Figure 1
). Relogging of historic drill holes utilizing multielement XRF data to discriminate lithologies,
combined with visual logging has revealed a high-grade zone of shallow, folded, mostly sub-
horizontal gold mineralization situated at the contact of a graphitic shale unit that is at least
200m
wide and open in all directions (
Figure 2
).
Better historic shallow intersections (never previously reported) include:
4m
@ 12.2g/t Au
2m
@ 8.0g/t Au
3m
@ 4.5g/t
13m
@ 3.0g/t
including
4m
@ 8.2g/t Au
24m
@ 1.4g/t Au
including
8m
@ 3.2 g/t Au
Presently true widths of mineralization are unknown, and a table of drill intercepts is given in the
Appendix.
Features of the drilled mineralized zone are:
Gold mineralization, which has been intersected between 40 to 80 metres below surface, is
associated with the contacts of a folded graphitic shale unit within coarser grained dacitic
volcaniclastics and volcanogenic sediments (
Figure 2
);
Gold mineralization is folded in concert with the contacts of the graphitic shale;
Both upper and lower contacts of the graphitic shale appear to be mineralized, but the lower
contact because of its greater depth is largely untested by drilling; [1]
In the area where drilling encountered better grades the disposition of the graphitic shale is
largely sub-horizontal but becomes sub-vertical on its southern flank where MRRB0412
intersected
4m
@ 12.2g/t Au was intersected on the "lower" contact of the graphitic shale unit.
Depth extensions of this
4m
@ 12.2g/t Au intersection are untested by present drilling (
Figure 3
);
A fold nose, inferred to be located between the near vertically dipping graphitic shale fold limb in
the south and the sub-horizontal limb in the north has not been intersected by drilling but
presents a prime structural target (
Figure 3
);
The unidirectional drill orientation (all holes drilled north), makes for an inadequate test for
folded mineralization which is expected to be of varied orientation and north of hole MRRB1625
is north dipping (
Figure 3
);
Width of the zone is at least
200m
and it remains open to the north (
Figure 3
);
Up and down plunge extensions to mineralization remain completely open but artisanal workings
and saprolite auger gold anomalism are suggestive that the zone may be of large size (Figures
4
&
5
);
The mineralized zone lies at the south-west corner of large (450 x
260m
) area of surface
artisanal workings and is thus likely the shallow down plunge extension of what was mined at
surface (Figure
4
&
5
). Thus, the zone presents potentially favourable geometry for the
definition of significant volumes of near-surface oxide gold mineralization;
The western edge of the artisanal workings where they are most intense appears to follow a
folded magnetic contact (Figure
4
&
5
) ;
Mineralization is not associated with significant quartz veining, but with the variable development
of silicification and sericite, sulphide, epidote, chorite and carbonate alteration and an
enrichment of up to ~ 1,000ppm zinc and 30ppm silver[2] ;
Six and four hundred metres distal to the high-grade zone, scout drilling also intersected broad
lower grade mineralization (e.g.
24m
@ 1.43g/t) at the contacts of graphitic sediments (Figures
4
,
5
&
8
);
Of these wider lower grade intersections, one zone, the closest (~
400m
away), appears to be
hosted by a graphitic sediment in a similar stratigraphic position to the high-grade zone and the
other,
600m
to the northeast appears to be hosted by a different graphitic unit: interpreted to be
interflow sediments within andesites and andesitic volcaniclastics (
Figure 8
).
Given the occurrence of drilled gold mineralization associated with potentially two different
graphitic units, located 400 &
600m
there is clear potential for K4NW to be a deposit of
considerable scale that to date has only seen very wide spaced drill testing.
The entire ~ 4km strike length of the K5 prospect is poorly tested by existing scout drilling (
Figure 7
) where drilling has been either on lines parallel to the NW gross strike of the prospect
or on NS lines with interline spacing 300-
1,000m
and in places spacing between drill collars on
lines of ~
100m
.
______________________
1
Although due to the folded disposition of the graphitic shale this may stratigraphically be only the upper contact
Significance of the results
The results reported today are of great significance to the interpretation of the larger K4-5 prospect
where the Company believes all evidence points to K4-5 being a giant (11km x 7.5km geochemical
footprint) poly-folded gold system. The results reported today lend great weight to that
interpretation with gold mineralization appearing to be folded and early stage in style:
It is disseminated and no quartz veining is associated with the K5NW gold mineralization;
There is no association with long strike length, through-going shear zones, only with contacts
that are folded and potentially locally sheared;
Mineralization at K5NW is contact related and hosted by a similar stratigraphy to the nearby
zinc-silver dominated Perkoa VMS deposit (syn-depositional mineralization). The weak zinc and
silver enrichment that accompanies gold mineralization at K5NW is suggestive that K4NW is
both early stage and is at a similar stratigraphic position to Perkoa.
______________________
2
This is significant, because located 12km to the SW of K4-5 is the Zinc-Silver dominated Perkoa, volcanogenic massive sulphide "VMS" deposit. VMS deposits are strata bound,
and syn-depositional. Further the immediate host stratigraphy at Perkoa is similar to that drilled at K5 with graphitic shists in the structural hanging wall, but stratigraphic footwall of
mineralization and with mineralization largely hosted within volcaniclastic and volcanogenic (dacitic) sediments. Based on these noted similarities to Perkoa it is a possibility that the
K5 gold mineralization is of syn-volcanogenic origin. Thus, potentially being very early-stage mineralization.
As a consequence of gold mineralization being likely early stage, it explains why it would be folded
by later deformation events.
These observations are highly significant for several reasons:
1
.
If the gold mineralization at K4NW and the larger K4-5 prospect is folded / fold controlled, then
because exploration has been conducted on broad spaced unidirectional grids (searching for
linear NE striking shear hosted mineralization) exploration to date has been completely
inadequate to properly explore K4-5 or to even locally test extensions to mineralization where it
has been found;
2
.
Poly- folded gold systems, tend to have large to giant gold endowments (>10Moz). They tend
to host both extensive anomalous to lower grade gold mineralization emplaced at an early-stage
of their history and later mineralization, remobilized from earlier gold, into small footprint, fold
controlled/ fold related high grade shoots. Global examples are Homestake > 40Moz & Telfer ~
> 30moz and within the Birimian of
West Africa
the 13Moz Wassa Gold Deposit.
3
.
A near universal feature of the poly-folded gold deposit style is that most of the gold
endowment is hosted within the smaller footprint, fold controlled, higher-grade shoots. These
shoots typically have small areal dimensions but long plunges e.g. the 20Moz Main Ledge at
Homestake- hosted in the nose of a syncline which has a surface footprint of 600 x 20-
40m
and
a plunge extent of >
2,500m
. Similarly, at Wassa the B & F shoots, which collectively host ~
8.55 Moz of gold, are located within early and parasitic folds, within the south limb of a larger
fold. B & F shoots have a discontinuous surface expression of ~
800m
x 10-
20m
but a down
plunge extent of at least
2,100m
(
Figure 9
).
Given the above, all known gold mineralization at K4-5 is poorly tested to date though the scale of
the system at 11 x 7.5km appears very large (
Figure 1
). Late folding appears to be around NW to
NNW striking fold axes which orientation is near parallel to auger and early drill orientations.
Further, given the typically small footprint of the high-grade shoots, which host most of the gold in
poly-folded gold deposits, sampling at K4-5 being broad and poorly oriented could have easily
missed such high grade shoots.
Nevertheless, as documented today and in the Company's past press releases (
October 26, 2022
;
March 7
&
April 18, 2023
), enough work has been conducted to locate three areas with high
potential to host shoots of better gold mineralization:
The main K4 North artisanal working- A 320 x
120m
wide zone of deep artisanal shaft mining
which has been ongoing for ~ 14 years, which has not yet been drill tested but where drilling
outside of the working has returned numerous good shallow gold intercepts (e.g.
48m
@ 1.4g/t
incl
12m
@ 4.1g/t;
4m
@ 16.2g/t;
56m
@ 1.3g/t incl
12m
@ 5g/t);
K4 South; where auger drilling to sample top of saprolite was conducted by the Company at
close enough spacing (25 x
25m
), to delineate continuous zones of potentially fold controlled
mineralization. The auger defined mineralization at K4S underlies a large 800 x
500m
artisanal
working, where artisanal miners appear to have followed folded mineralization. At K4S the
Company's Auger sampling returned a peak value of 9.2g/t Au and multiple > 0.5g/t Au values
from samples of the top metre of saprolite, while poorly oriented historic drilling returned (
10m
@ 3.5g/t;
3m
@ 7.7g/t;
4m
@ 8.5g/t &
36m
@ 1.3g/t Au/.)
K5NW as documented today.
Further work at K5NW
The orientation of mineralization at K5NW remains poorly constrained, which makes it difficult to
immediately plan a large follow-up drill program. Given the potential complexity of mineralization the
company intends to undertake the following to better define mineralization in preparation for a major
drilling campaign:
Close spaced auger drilling on a 25 x
25m
triangular grid i.e. isotropic and not prejudiced to test
mineralization of only one particular strike;
Trenching of the surface workings aligned E-W and N-S for sampling, mapping and structural
measurements;
Close spaced square gridded magnetic and VLF surveys (current magnetic survey is on
100m
spaced north-south lines). The VLF survey has a high chance of detecting a strong response
from the graphitic sediments and by conducting the survey on a square grid, with as many cross
lines as survey lines, the survey should accurately define expected strike and dip changes of the
host graphitic sediments;
A limited <
2,000m
of oriented diamond core drilling to gather structural data and to immediately
test the following potential extensions to mineralization;
Depth extension of the
4m
@ 12.2g/t Au drill intersection;
Test the lower contact of the graphitic shale;
Test for a potential continuation of the zone to the north and under the granitoid sill and test
define the thickness of the sill.
Test the near up and down plunge extent of the zone to the northeast and southwest of the
present drill section.
Technical details to accompany this press release are provided in the Appendix.
Executive Chairman Dominic O'Sullivan Commented:
"
Tajiri is not just a one trick pony. We are following a two prong strategy - near term we have a
potentially very saleable asset- the recently acquired Yono Property in
Guyana
, where recent grab
sampling returned ~800 g/t from within a few hundred metres of the 7.9
Moz Oko
and Oko West
deposits and where mining at Oko West is slated to commence in 2028.
We further believe Yono, irrespective of any gold endowment it may or may not contain, will be a
"must have piece of ground" as its' boundary is located within
90m
of the edge of the resource
constraining Oko West pit shell and within
170m
of the outcrop of the centrally located Ghanie
deposit. Furthermore, Yono controls the catchment area of one of two major streams in the area,
which stream debouches immediately from Yono onto the central part of the Oko resource area.
To our minds control of Yono might just be necessary to implement surface water control of
monsoonal high flow events across or into any open pit in the central part of the combined Oko
and
Oko West
deposits.
In Burkina, where exploration has unfortunately been at a hiatus, while we awaited permit renewals
and an improved security and political situation to attract investment, K4-5 is shaping up to be a
long-term exploration play of large to giant scale with potential to host multiple gold mineralized
zones.
Accordingly, we look forward to expeditiously commencing exploration at Yono and recommencing
exploration in Burkina."
Qualified Person
The Qualified Person under National Instrument 43-101
- Standards of Disclosure for Mineral
Projects
for this news release is
Dominic O'Sullivan
a geologist, member of the AusIMM, Executive
Chairman of Tajiri and who has reviewed and approved its contents.
On Behalf of the Board,
Tajiri Resources Corp.
About Tajiri
Tajiri Resources Corp. is a junior gold exploration and development Company with exploration
assets located in two of the worlds least explored and highly prospective greenstone belts of
Burkina Faso
,
West Africa
and
Guyana
,
South America
. Lead by a team of industry professionals
with a combined 100 plus years' experience the Company continues to generate shareholder value
through exploration.
Neither TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for the
adequacy or accuracy of this release
Appendix
Technical Details and QA/QC
Drill intersections reported today were from RAB, Aircore and RC drilling conducted by Newmont
and Middle Island Resources between 2008 and 2013.
RAB and Aircore samples were taken at every metre and composited into four metre intervals for
analysis while RC drilling was sampled and analyzed in metre intervals.
All samples were assayed at SGS laboratories, Ougadougo,
Burkina Faso
along with standards,
blanks and duplicates making up 10% of the assayed samples. Assay was by 30 and 50 gram
conventional fire assay with either DIBK extraction and AAS analysis or gravimetric finish where
values exceeded 3 ppm Au.
A Table of all drill intercepts reported today is given in the below table:
Hole #
Azi
(True)
Dip
Total Hole
Depth (m)
From
(m)
To
(m)
Interval
(m)
Au
ppm
East zone on NE edge of large artisanal working (Figures
4
&
8
)
MRRB0389
000°
-50°
84
68
84
16
1.07
Including
76
80
4
3.26
MRRB0390
000°
-50°
84
24
40
16
0.74
including
24
28
4
1.26
North Zone (Figure
4
&
8
) in interflow sediments within andesitic volcanics
MRRB 1649
000°
-55°
63
16
36
20
0.82
000°
-55°
MRRC0073
000°
000°
80
34
57
23
1.11
including
36
42
8
2.28
MRRC0074
000°
357°
120
72
89
16
0.87
Including
73
74
4
1.65
Main Zone on south-west edge of artisanal workings (Figures
2
,
3
&
4
)
.
MRRB0412
000°
-50°
84
20
24
4
12.2
MRRB1624
000°
-50°
81
52
76
24
1.42
Including
60
68
8
3.17
MRRB 1625
000°
-50°
81
68
81
13
3.00
Including
68
72
4
8.21
Hole #
Azi
(True)
Dip
Total Hole
Depth (m)
From
(m)
To
(m)
Interval
(m)
Au
ppm
MRRC0075
357°
-50°
100
No significant intersections but likely did not reach to
test extension of intersection in MRRB0412
MRRC0076
357°
-50°
120
64
68
4
2.82
Including
65
66
1
5.85
100
102
2
8.04
MRRC0077
357°
-50°
123
46
50
4
3.20
79
80
1
2.23
97
98
1
1.06
109
112
3
4.52
Peripheral Drilling ( Figure
4
&
7
)
NAC168
316.5°
-55°
45
28
44
16
1.0
MRRB0427
000°
-50°
68
48
68
20
1.55
Hole ended in mineralization
MRRB0423
000°
-50°
12
16
4
3.92
24
24
20
0.38
MRRB prefix denotes a Middle Island RAB hole
NAC – Newmont Aircore
MRRC -Middle Island RC drill hole.
All Assay intervals calculated at a 0.2g/t cutoff and contain a maximum internal dilution of
2m
@ <
0.2g/t for RC intervals and a maximum internal dilution of
4m
<0.2g/t for RAB and Aircore holes.
No top cap to intervals applied.
Relogging of drillholes and discrimination of lithologies from XRF data was conducted by utilizing
major and trace elements abundances from XRF analyses. and their derived ratios, along with binary
and ternary plots of the data. Ratios and plots used were: Ti-Zr-Y; Ti-Zr-Sr; Ti-Zr; Ti-V; Ti-
Cr; Sr-V; Fe-Ti; These ratios enabled the division of lithologies into rhyolites, dacites, andesites
and basalts and the further discrimination of lithologies into MORB and IAB basalts and andesites.
In addition, use of V-Sr and Ti-Cr was utilized to further sub divided compositions into volcanic or
sediments/ volcaniclastics.
XRF analyses were performed with a handheld Olympus DP6,000 on pulp rejects of assayed
material.
The XRF method cannot determine intrusive from extrusive rocks, which requires visual logging of
textures, and furthermore cannot detect carbon, so determination of graphitic sediments is based on
visual logging only. As a result of the XRF analysis it appears most of the compositionally dacitic
lithologies at K5NW are either volcaniclastics or volcanogenic sediments, whereas the more mafic
andesitic compositions may be either true volcanics or sediments derived from volcanics.
Gold mineralization is associated contacts of a Relogging has utilized XRF multielement
discrimination of lithologies combined with visual logging.
In addition, the company has relogged and re-interpreted historic wide spaced scout drilling, by
combining historic logging and a new lithological discriminate analysis based on XRF multielement
data. The new interpretation shows, inter alia, a zone of shallow, flat lying high-grade mineralization,
located at the contracts of a folded graphitic shale. The zone is situated on the southern margin of
K5 and open in all directions (
See Figures
6
&
7
). Anomalous auger values and artisanal workings
along strike are suggestive of potential for significant of extensions to the drilled mineralization.
Better values from this zone include:
Of importance, the re-interpretation of drilling shows:
1
.
The style of gold mineralization at this part of K5 is contact related and is not associated with
quartz veining but the variable
2
.
Mineralization is folded along with stratigraphy.
3
.
Gold mineralization is mostly situated in volcanoclastic (dacitic) sediments at their contact with
the graphitic shale and extends into the graphitic shale. Within the graphitic shale immediately
below gold mineralization there is a weak enrichment in Zn (up to 1,000ppm). This is significant
as located 12km to the SW of K4-5 is the Zinc dominated Perkoa, volcanogenic massive
sulphide "VMS" deposit. VMS deposits are strata bound and the stratigraphy at Perkoa is
similar to that drilled at K5 with graphitic shists in the structural hangingwall but stratigraphic
footwall of mineralization which is hosted within volcanogenic (dacitic) sediments. Based on
these noted similarities to Perkoa it is a possibility that the K5 mineralization is syn volcanogenic
/ sedimentary.
The above is thus prima facie support for the Company's contention that K4-5 is a poly folded
deposit of potentially giant scale and that further due to the complex nature of folding previous
sampling programs on unidirectional grids have inadequately tested potential.
Furthermore, the folded higher-grade mineralization is relatively flat lying and situated at shallow
depths (~ 40-
60m
below surface). The zone is located on the south-western tip of a large (
420m
X
260m
) area of surface artisanal workings (
Figure 6
). As such the zone is most likely the shallow
down plunge extension of what was mined at surface, thus a favourable geometry and potential to
define significant volumes of near-surface oxide gold mineralization is presented.
To Date drill testing of K5 is very limited (
Figure 5
) and sub-optimally oriented to test the prospect.
Early Aircore was drilled on NW-SE lines and is nearly parallel to strike and is thus a very poor test
for mineralization. Later RAB with limited follow-up by 5 RC drill holes was all drilled on N-S lines.
As such drill holes were oriented at ~ 30°- 45° to strike and is a sub optimal orientation.
Furthermore, all holes at K5 were drilled at 55° to the north. As Shown in
Figure 7
because
mineralization is folded and its dip direction is expected to change across strike north directed drilling
will likely to have missed north dipping mineralization
SOURCE
Tajiri Resources Corp.
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For further information:
Graham Keevil, President & CEO, [email protected],
www.tajirigold.com, 778.229.9602
CO: Tajiri Resources Corp.
CNW 07:45e 21-AUG-24