SOMA GOLD Intersects 8.35 G/T Au over 1.0m and Reports Underground Channel Sampling at LA Aurora MINE, Machuca, Antioquia, Colombia
SOMA GOLD INTERSECTS 8.35 g/t Au OVER
1.0m AND REPORTS UNDERGROUND
CHANNEL SAMPLING AT LA AURORA MINE,
MACHUCA, ANTIOQUIA, COLOMBIA
VANCOUVER, BC
,
March 5, 2024
/CNW/ -
Soma Gold Corp.
(TSXV: SOMA) (WKN: A2P4DU)
(OTC: SMAGF) (the "
Company
" or "
Soma
") is pleased to announce the results of the initial
diamond drill program conducted at the La Aurora Mine on the Machuca Project in central
Colombia
(Figure 1). Three drill holes, totalling
656m
of drilling, were successfully completed in late
December
2023
. Furthermore, this release also presents the results obtained from the 2022 due diligence
underground sampling program. The assays from both the channel samples and drill holes are
detailed and discussed herein.
Highlights include the following drill intercept:
AURDDH-24-003
1.0m
at 4.35 g/t Au incl.
0.5m
at 8.35 g/t Au
Composited underground channel sampling highlights include:
AURORA5_GS_AR8_ABS_10S
0.65m
at 36.64 g/t Au incl.
0.25m
at 94.7 g/t Au
AURORA5_GS_AR8_ABS_2S
0.8m
at 14.17 g/t Au incl.
0.3m
at 37.77 g/t Au
AURORA5_GS_AR8_ABS_16S
0.9m
at 11.03 g/t Au incl.
0.4m
at 9.92 g/t Au
La Aurora Mine is located on the western side of the Otu Fault within an area characterized by a
regionally extensive high-metaphoric grade gneiss. Quartz veins in this region form as laminated
fault-fill veins within a sinistral brittle-ductile shear zone, interpreted as a higher-order structure
associated with the Otu Fault. The controlling fault zone is predominantly north-south striking and
dips moderately to steeply to the west.
This fault, along with associated quartz veins, forms a series of en echelon segments that
consistently step approximately
25m
-
50m
to the left along strike. Uniquely oriented quartz veins,
created to accommodate extension within step-over zones, in these domains strike southeast and
dip steeply to the south. Extensional step-over zones are recognized as hosting high-grade ore
shoots and represent highly promising exploration targets.
In 2022, Soma conducted due diligence channel sampling at La Aurora Mine. The channel samples
were collected along the strike of La Constancia vein on level 5 of the mine. A total of 69 channel
samples were obtained from 37 lines covering approximately
110m
along the strike of La Constancia
vein. Out of these, 35 samples were quartz vein material from La Constancia vein while the
remaining 34 samples were wall rock shoulder samples in the footwall and hanging wall of the quartz
vein. Table 1 presents the composite grades of each channel sample line, ranging from 0.01 g/t Au
to 94.67 g/t. Among these, 21 quartz vein samples reported gold grades exceeding 0.4 g/t, with the
remaining 15 vein samples indicating the nuggety nature of the gold distribution. Notably, seven wall
rock shoulder samples returned gold assays ranging from 0.9 g/t Au to 9.07 g/t Au, attributed to thin
veins containing sulphides and gold in the footwall of the main vein structure. The grade distribution
of the due diligence samples aligns with the historical underground channel sample dataset, where
the maximum historical sample along La Constancia vein was 146 g/t Au. Due diligence samples
adjacent to the high-grade historical sample reported gold assays exceeding 7 g/t.
Table 1 Composites of due diligence channel sample lines on level 5 of La Aurora Mine
Channel Sample No
Zone
Length (m)
Au (g/t)
AURORA5_GN_AR12_ABS_4N
Constancia
0.6
1.50
AURORA5_GN_AR12_ABS_8N
Constancia
0.7
0.02
AURORA5_GN_AR13_ABS_10N
Constancia
0.7
0.02
AURORA5_GN_AR13_ABS_23
Constancia
1.1
0.34
AURORA5_GN_AR4_ABS_12N
Constancia
0.95
2.09
AURORA5_GN_AR4_ABS_18N
Constancia
0.9
0.16
AURORA5_GN_AR4_ABS_4N
Constancia
1.1
2.93
AURORA5_GN_AR4_ABS_8N
Constancia
1.1
1.39
AURORA5_GS_AR10_ABS_16S
Constancia
1.5
0.74
AURORA5_GS_AR10_ABS_18S
Constancia
1.6
0.02
AURORA5_GS_AR10_ABS_26S
Constancia
1.6
0.02
AURORA5_GS_AR10_ABS_30S
Constancia
1.2
0.02
AURORA5_GS_AR10_ABS_38S
Constancia
1
0.33
AURORA5_GS_AR10_ABS_4S
Constancia
1.2
4.38
AURORA5_GS_AR10_ABS_6S
Constancia
1.3
3.50
AURORA5_GS_AR11_ABS_10S
Constancia
0.4
0.06
AURORA5_GS_AR11_ABS_16S
Constancia
0.2
0.12
AURORA5_GS_AR11_ABS_18S
South
0.45
8.19
AURORA5_GS_AR11_ABS_22(FRENTE)
Constancia
0.16
0.02
AURORA5_GS_AR11_ABS_4S
Constancia
0.6
0.02
AURORA5_GS_AR4_ABS_11S
Constancia
0.6
0.52
AURORA5_GS_AR4_ABS_14S
North
0.4
10.29
AURORA5_GS_AR4_ABS_16S
Constancia
1.2
1.33
AURORA5_GS_AR4_ABS_2S
Constancia
0.5
3.62
AURORA5_GS_AR8_ABS_0
Constancia
0.7
2.28
AURORA5_GS_AR8_ABS_10S
North
0.65
36.64
AURORA5_GS_AR8_ABS_12S
North
0.7
4.30
AURORA5_GS_AR8_ABS_14S
Constancia
0.8
1.45
AURORA5_GS_AR8_ABS_16S
North
0.9
11.03
AURORA5_GS_AR8_ABS_22S
Constancia
0.8
0.02
AURORA5_GS_AR8_ABS_26S
Constancia
1
0.79
AURORA5_GS_AR8_ABS_28S
Constancia
0.9
0.02
AURORA5_GS_AR8_ABS_2S
North
0.8
14.17
AURORA5_GS_AR8_ABS_30S
Constancia
1
0.12
AURORA5_GS_AR8_ABS_34S
Constancia
0.8
7.76
AURORA5_GS_AR8_ABS_36S
Constancia
1.1
1.34
AURORA5_GS_AR8_ABS_40S
Constancia
0.2
0.40
In late
December 2023
, a drill program was initiated to enhance confidence in the down-dip
continuity of the vein structures observed in historical mine workings. The primary objective was to
test the interpreted high-grade ore shoots and investigate whether the La Constancia quartz vein
extends below level 5 of the historical mine (Figure 2). Table 2 provides the composite assays from
the drill holes, and each hole is briefly discussed below.
AURDDH-23-001 unexpectedly intersected mine workings not documented in existing mine surveys.
It could not be completed to the planned depth and, consequently, prevented the hole from
intersecting the targeted section of the Constancia vein.
AURDDH-24-002 (Figure 3) Targeting down dip of high-grade channel samples from La Constancia
vein on level 5, this hole intersected the vein
30 m
below level 5, spanning from
178.8 m
to
181.35 m
with an approximate true width of
2.25 m
true width (Figure 3). The milky white quartz vein was
brecciated by younger, brittle fractures during structure reactivation. The fractures are filled with
crushed vein material and pyrite. Assay samples of the vein did not return any significant gold
values. A narrow interval of thin quartz veins occurs 2.5 m downhole from the main vein intersection
and returned a weakly anomalous gold value of 0.18 g/t Au over
0.35 m
at a depth of
183.9 m
.
AURDDH-24-003 (Figure 4) was designed to intersect a southeast striking, steeply dipping quartz
vein segment that forms in the extensional stepover zone between the Constancia and Aurora veins.
The vein, interpreted as forming in a normal fault accommodating extension between the two north-
south striking veins, was intersected from
151.6 m
to
152.7 m
with a true width of
1.0 m
, situated
30
m
up-dip of its exposure on level 5. The intersection is comprised of a late milky white quartz-
carbonate vein crosscutting an older brecciated dark grey quartz vein. In the footwall, 1 cm to 3 cm
thick quartz veins with variable orientations and density form a
35m
wide stockwork interval. The
veins contain 1%-5% sphalerite and galena, which typically accompanies gold mineralization along
the Otú Fault corridor. The quartz-carbonate vein was barren of gold mineralization, but a set of thin
(1.0 cm to 4.0 cm) quartz veins with pyrite, sphalerite, and galena returned a gold assay of 8.35 g/t
over
0.5 m
within the stockwork interval. Additional sampling has been undertaken to continuously
sample the entire stockwork interval to determine whether any unsampled quartz veins also contain
high-grade gold.
Soma's Vice President of Exploration, Chris Buchanan, stated, "We are pleased that the first phase
of drilling intersected quartz veins where they were predicted from initial structural models of the vein
system. We're particularly encouraged that numerous stockwork-style veins with sulphides and high-
grade gold intersected in the footwall of the primary vein structure. This zone is interpreted to be an
extensional step-over and has the potential to develop into a broad, high-grade ore shoot."
The initial 2023 drill program successfully confirmed the presence of the Constancia and Aurora
veins at depth below the current mine workings. While the low gold grades from the Constancia vein
in AURDDH-23-002 are disappointing, they are consistent with the nuggety distribution of gold grade
observed in the 2022 due diligence channel samples on level 5. Further drilling on a tighter spacing is
required to fully delineate the vein and gold distribution within the vein system in La Aurora Mine.
Soma is currently engaged in dewatering the mine to its deepest levels, enabling access to Levels 1
and 5. The engineering team is diligently evaluating the safety conditions of the mine.
Simultaneously, the exploration team is set to conduct geological mapping, systematic sampling, and
accurate surveys of the mine workings. The resulting additional information will be seamlessly
integrated into the current datasets to strategically plan the next phase of drilling in 2024.
Table 2 Significant assays above 0.15 g/t Au in the 2023 drill holes
Hole ID
From
(m)
To (m)
Length
(m)
Sample
Au
(g/t)
Ag
(g/t)
Cu
(ppm)
Pb
(ppm)
Zn
(ppm)
AURDDH-23-001
90.55
91.3
0.75
YL-60063
0.24
0.19
16.4
8.3
45
AURDDH-24-002
129.7
130.7
1
YL-60135
0.33
0.06
24.3
7.4
45
AURDDH-24-002
183.65
184.25
0.6
YL-60159
0.18
5.23
60.1
394
92
AURDDH-24-003
157.2
157.7
0.5
YL-60193
0.19
0.62
67.3
14.5
58
AURDDH-24-003
158.2
159.2
1
YL-60207
0.34
0.72
58.3
58.3
41
AURDDH-24-003
159.2
159.7
0.5
YL-60194
8.35
13.1
124
10000
1765
In addition to ongoing exploration activities at La Aurora Mine, Soma's exploration team is actively
assessing various small-scale mines near Machuca. Three extensive soil grids are scheduled for
2024 to determine the continuity of gold mineralization between the informal mines along the
Otú Fault. Soma also continues to work with the local communities on the Machuca Property as part
of its ongoing ESG program.
The Otú fault system ("Otú Fault") has a strike length of over 100 km, from Segovia-Remedios in the
south to Nechi in the north (where it is concealed by younger sedimentary overlap sequences).
Soma's property holdings now encompass more than 56 km of this fault's strike length. High-grade
gold mineralization is observed along the entire Otú Fault strike length, primarily occurring in brittle-
ductile to brittle quartz veins formed during later stages of deformation along the fault. Throughout
the district, the quartz veins display orientation patterns that suggest the veins form in conjugate
faults associated with brittle faulting on the Otú Fault. Prominent mines along the Otú trend, such as
Segovia-Remedios, La Aurora, El Limon,
Le Ye
, Los Mangos, and Cordero, underscore the
prevalence of high-grade gold mineralization in the area. The Machuca Property is strategically
located along a critical segment of this regional fault structure, boasting numerous indications of
high-grade gold mineralization.
QA/QC Statement
Drill Core Samples
Soma Gold follows a comprehensive QA/QC program to ensure the reliability of assay data
collected from its exploration programs. All samples are sawn, or split, in half, with one half being
returned to the core box for storage. The second half-core is placed in a labelled plastic bag with a
tag, document, and sealed for shipment. Batches of samples are shipped to ALS Colombian (ALS)
in
Medellin
with security tags and documented chain of custody.
Pulps of each sample are prepared in
Medellin
and shipped to ALS Lima for analysis. All samples
are analyzed using the package ME-MS41, an ICP-MS analysis that provides the concentration of
51 elements. Fifty-gram aliquots of each sample are analyzed for gold using a standard fire assay
with an atomic absorption finish. Overlimit samples are subjected to an additional fire assay with a
gravimetric finish to determine the gold concentration.
A comprehensive QA/QC program has been implemented to monitor the reliability of assay data
collected during exploration programs. The program includes the regular insertion of certified blanks,
duplicates, and certified OREAS standards. Assays of the QA/QC samples are automatically
compared to the certified values and standard deviations in the database.
Channel Samples
Channel samples in
Colombia
are common in underground mining and are commonly used for grade
control. The channel samples are marked by a spray-painted line. Individual samples along the
channel are broken out based on changes in lithology (e.g. quartz vein vs wall rock). A large plastic
sheet is laid out below the sample line, and the sample is chipped with a hammer and chisel. The
chips are collected by the underlying plastic sheet and transferred to a sample bag.
Prior to
December 2023
, all the samples were analyzed by the Operadora mine laboratory and
selected samples were submitted to ALS Laboratory for QA/QC analysis. The samples were
crushed, split, and pulverized by the Operadora Mine laboratory. Fifty-gram aliquots of each sample
is analyzed for gold using standard fire-assay with a gravimetric finish.
Since 2023 all exploration samples for Soma Gold are submitted to ALS Lima for analysis, as per
the drill core procedures. This is due to renovations of the Operadora mine laboratory for improved
health and safety and capacity for increased mine production. Grade control channel samples for the
Cordero Mine continue to be processed at the Operadora mine laboratory.
Qualified Person Statement
Mr.
Chris Buchanan
, P.Geo, is Soma's Vice-President of Exploration and a Qualified Person as
defined by National Instrument 43-101. Mr. Buchanan has reviewed the technical information
disclosed in this press release.
ABOUT SOMA GOLD
Soma Gold Corp. (TSXV: SOMA) is a mining company focused on gold production and exploration.
The Company owns two adjacent mining properties in Antioquia,
Colombia
with a combined milling
capacity of 675 tpd. (Permitted for 1,400 tpd). The El Bagre Mill is currently operating and
producing. Internally generated funds are being used to finance a regional exploration program.
With a strong commitment to sustainability and community engagement, Soma Gold Corp. is
dedicated to achieving excellence in all aspects of its operations.
The Company also owns an exploration property near Tucuma, Para State,
Brazil
, that is currently
under option to Ero Copper Corp.
On behalf of the Board of Directors
"Geoff Hampson"
Chief Executive Officer and Chairman
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in
the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of
this release.
All statements, analysis and other information contained in this press release about anticipated
future events or results constitute forward-looking statements. Forward-looking statements are
often, but not always, identified by the use of words such as "seek", "anticipate", "believe", "plan",
"estimate", "expect" and "intend" and statements that an event or result "may", "will", "should",
"could" or "might" occur or be achieved and other similar expressions. Forward-looking statements
are subject to business and economic risks and uncertainties and other factors that could cause
actual results of operations to differ materially from those contained in the forward-looking
statements. Forward-looking statements are based on estimates and opinions of management at the
date the statements are made. The Company does not undertake any obligation to update forward-
looking statements even if circumstances or management's estimates or opinions should change
except as required by applicable laws. Investors should not place undue reliance on forward-looking
statements.
Composites of due diligence channel sample lines on level 5 of La Aurora Mine (CNW Group/Soma
Gold Corp.)
Significant assayes above 0.15g/t Au in the 2023 drill holes (CNW Group/Soma Gold Corp.)
Location of La Aurora Mine and the Machuca Project (CNW Group/Soma Gold Corp.)
2023 Drill Hole locations and 2022 channel sample locations (CNW Group/Soma Gold Corp.)
Cross-section of AURDDH-23-002 (CNW Group/Soma Gold Corp.)
Cross-section of AURDDH-23-003 (CNW Group/Soma Gold Corp.)
Pictures of La Constancia vein from level 5 of La Aurora Mine and entrance decline (CNW
Group/Soma Gold Corp.)
SOURCE
Soma Gold Corp.
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For further information:
Andrea Laird, telephone: +1-604-259-0302
CO: Soma Gold Corp.
CNW 07:20e 05-MAR-24