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
- 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:
- 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;
- 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.
- 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:
- The style of gold mineralization at this part of K5 is contact
related and is not associated with quartz veining but the
variable
- Mineralization is folded along with stratigraphy.
- 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.