G Mining Ventures Corp. (
TSXV:GMIN)
(“
GMIN” or the
“
Corporation”) is pleased to announce an
exploration and drilling program (the “
Program”)
at its recently acquired Tocantinzinho Gold project located in Para
State, Brazil (“
Tocantinzinho” or the
“
Project”). The Program will total 10,000 meters
and be focused on (i) de-risking the pre-production period and (ii)
testing for extensions to the known mineralization below the pit in
the directions that remain open. Additionally, GMIN is pleased to
provide a geological overview of the Tocantinzinho deposit and of
the historical drilling campaigns completed from 2004 through 2015.
Louis-Pierre Gignac, President & CEO
of GMIN, commented: “Tocantinzinho is a homogenous orebody
with excellent grade continuity, and we are excited to launch our
inaugural drilling program. With an existing gold reserve of 1.8
million ounces, only 82,805 meters in 296 drill holes were
completed inside the broader tenement, in various phases between
2004 and 2015. The primary objective of the Program is to optimize
mine planning and de-risk mine performance during the initial years
of production. With the deposit open at depth and down plunge, the
Program will also include exploration diamond drilling focused on
mineralization below the pit. The Program is to commence this month
and continue into 2022.”
Pre-Production Drilling
Campaign7,000 meters of diamond and reverse circulation
drilling will be targeting mineralization planned to be mined
during the early years of production. This campaign is intended to
significantly de-risk mine performance, particularly in the initial
years of production. The objectives are to:
- Mitigate ore dilution by providing
better definition of ore and waste boundaries;
- Optimize mine scheduling in the
first 2 years of operation by populating areas with a lower
drilling density near surface (see Figure 1);
- Increase confidence in the quantity
of ore mined and milled during ramp-up from a project financing
perspective; and
- Expand and validate the artisanal
tailings by improving the sampling coverage in the area above the
pit and near the future infrastructure footprint.
Exploration Drilling Campaign
3,000 meters of diamond drilling will be targeting mineralization
at depth down plunge to the northeast and southeast of the
currently known mineralization. The campaign is intended to test
for extensions to the known mineralization below the pit in the
directions that remain open. The deposit is weakly tested at depths
beyond 350 meters, as focus by prior operator shifted to
permitting after the mineral resource exceeded 2.0 million gold
ounces. The deepest drill hole reaches 490 meters from
surface, which is only 150 meters below the current pit design
(see Figure 2).
GMIN will follow up on drill holes from previous
campaigns that remain open, such as TOC 09-121,
TOC 09-139 and TOC 09-152 (see Figure 2), which show
higher-grade mineralization at the northwestern and southeastern
ends of the pit. This first phase of exploration drilling is aiming
at better understanding the attitude and spatial continuity of the
high-grade interval in TOC 09-139, and potentially
demonstrating continuity of gold grades with TOC 09-152. Partially
tested mineralized intervals at the southeastern extremity of the
pit also provide good exploration opportunities and will be tested
in the current program (see Figure 2).
Details of the significant intervals at the base
of the pit are presented below.
DDH Hole ID |
From(meters) |
To(meters) |
Interval(meters) |
Estimated True Width(meters) |
Gold Grade (g/t Au) |
TOC 09-121 |
256.7 |
310.0 |
53.3 |
32.0 |
1.83 |
Including |
257.6 |
278.7 |
21.2 |
12.7 |
2.78 |
TOC 09-139 |
324.6 |
383.1 |
58.5 |
26.3 |
2.50 |
Including |
339.7 |
356.4 |
16.8 |
7.6 |
4.78 |
TOC 09-152 |
394.4 |
433.9 |
39.5 |
31.6 |
1.26 |
Including |
413.0 |
421.0 |
8.0 |
6.4 |
2.65 |
DDH Hole ID |
Easting(meters) |
Northing(meters) |
Elevation(meters) |
Azimuth(degrees) |
Dip(degrees) |
Length(meters) |
TOC 09-121 |
578,537 |
9,330,529 |
142 |
220 |
(79) |
454.2 |
TOC 09-139 |
578,317 |
9,330,814 |
144 |
220 |
(70) |
472.4 |
TOC 09-152 |
578,143 |
9,330,497 |
148 |
40 |
(60) |
487.7 |
Note: All holes are DDH. Coordinates are in
SAD69/UTM Zone 21S.
Overview and Background of Tocantinzinho
Gold Deposit
Mineralization and Deposit
TypeTocantinzinho is a granite-hosted gold deposit, with
several features typical of intrusion-related gold systems, such as
gold-bearing magmatic-hydrothermal textures and specific alteration
assemblages such as phyllic alteration. Its genesis is a source of
debate as it also shares some features of Porphyry-style gold
deposits. Mineralization is mainly hosted in sub-parallel or
anastomosing sheeted veins and veinlets (chlorite-quartz-pyrite) in
multiple directions.
The deposit is located within an intrusive
suite, bounded and controlled by a major regional
northwestern-trending structure. In the center of the deposit lies
an andesitic body, mostly barren, and often marks a contact with
mineralization. The Fort Knox gold mine, located in Alaska, USA,
and currently operated by Kinross Gold Corporation is an example of
a deposit classified as an intrusion-related gold deposit and
shares some similarities with Tocantinzinho, such as gold-bearing
sheeted veins, granite-hosted, Au>Ag and timing of
mineralization within the intrusion.
The deposit is sub-vertical, southeast trending
with excellent grade continuity and consistency (see
Figure 3). Its continuity has been demonstrated by diamond
drilling over approximately 900 meters in strike-length, with
widths up to 140-200 meters and vertical extents up to
360 meters. While the lateral extents have been tested by
diamond drilling (see Figure 2), the main exploration upside is at
depth where mineralization remains open (current target of
exploration drilling).
Historical Exploration and Drilling
(2004-2015)The exploration work completed to date includes
geological mapping, channel and chip sampling, soil and stream
sediment geochemical surveys, a detailed topography survey, auger
drilling, geophysical investigations, limited reverse circulation
drilling, and core drilling. Diamond drill holes are the principal
source of geological and grade data for Tocantinzinho deposit.
However, the deposit does not have a high level of historical
drilling, with only 82,805 meters in 296 drill holes completed
inside the broader tenement between 2004 and 2015. The mineral
resource estimate is directly supported by only 45,039 meters
drilled (55% of total) between 2004 and 2010. A summary of the
historical drilling can be found below.
Drilling Objective |
TimePeriod |
Meters Drilled |
DrillHoles |
Resource Drilling and Resource Conversion |
2004-2010 |
45,039 |
155 |
Exploration Drilling (tenement-wide) |
2004-2015 |
34,492 |
159 |
Metallurgical Test work Drilling |
2009 |
1,490 |
6 |
Geotechnical Drilling |
2010 |
1,784 |
6 |
Total |
2004-2015 |
82,805 |
296 |
Mineral Resource and Reserve
Estimate(1)The current
mineral resources estimate was generated on September 30, 2018 and
is reported at a 0.30 g/t Au cutoff grade. The estimate is
supported by 3D geological and mineralization models, and the block
size used is 10 m east x 10 m north x 10 m high. Modelling
consisted of grade interpolation by ordinary kriging (OK) inside
the mineralized shell.
Mineral Resource Category |
Tonnage(000 t Ore) |
Grade(g/t Au) |
Contained(000 oz Au) |
Measured |
17,530 |
1.51 |
851 |
Indicated |
31,202 |
1.26 |
1,264 |
Measured and Indicated |
48,732 |
1.35 |
2,115 |
Inferred |
2,395 |
0.90 |
69 |
The current mineral reserve estimate was
generated on March 31, 2019 using a $1,200 per ounce gold price,
and is reported at a 0.365 g/t Au cutoff grade. GMIN is in the
process of updating the current 2019 feasibility study (Q1-22) and
plans to optimize the mineral reserves and mine plan using a $1,400
per ounce gold price that is more in line with the current
market.
Mineral Reserve Category |
Tonnage(000 t Ore) |
Grade(g/t Au) |
Contained(000 oz Au) |
Proven |
17,007 |
1.52 |
834 |
Probable |
21,898 |
1.35 |
949 |
Proven and Probable |
38,905 |
1.42 |
1,783 |
Tapajos Gold
ProvinceTocantinzinho is located in the large Tapajós Gold
Province and is the largest known gold deposit in the region. This
region was the site of a major gold rush by artisanal miners from
the late 1970s until the late 1990s which, according to the
Brazilian Department of Mineral Production, had a total historical
production of between 20 and 30 million ounces of gold mainly from
alluvial and saprolite sources.
The region is underexplored and hosts many gold
deposits, such as Cuiù Cuiù (Cabral Gold Inc.), Palito and São
Chico (Serabi Gold plc), and São Jorge (GoldMining Inc.). Deposit
types vary from orogenic, disseminated intrusion-related,
porphyry-style and epithermal gold, as well as and potentially
porphyry Cu-Mo mineralization. Deposit models evolve, leading
towards the Tapajós Province being host of a major intrusive system
potentially generating various mineralization styles. Drill core
observations and grade distributions of the Tocantinzinho deposit
also suggest a minor, late orogenic overprinting.
The association of gold with intrusions and
higher-grade veining (orogenic gold) are at the heart of the
exploration model for future property-wide exploration drilling at
Tocantinzinho. The numerous showings and exploration upside in the
property could potentially extend the current mine life with
shallow, satellite pits.
Timetable and Next StepsOver
the next 12 months, GMIN will be focused on the following
activities:
- Completion of Program (Q4-2021
through Q1-2022);
- Completion of project optimization
studies and detailed engineering (Q4-21 through Q4-22);
- Completion of an updated
43-101 feasibility study (Q1-22);
- Commencement of onsite early works
activities to support infrastructure and allow for rapid start of
construction activities (Q2-22 through Q3-22);
- Finalization of a comprehensive
project finance facility to fund construction (H1-22); and
- Positive construction
decision (H2-22).
Sampling and QAQC
DisclosureFrom May 2009 to December 2011, the sample
preparation procedure at ALS involved weighing and drying the
sample before being crushed to 70% passing 2 millimeters. The
sample was then riffle split to 1-kilogram and pulverised to 85%
passing 75 μm (200-mesh screen). The chemical analysis was
performed at ALS Lima, Peru, using 30 g sample for fire assay
analysis (ALS Code Au-AA23). Select samples were also assayed for a
suite of trace elements using aqua-regia digestion and inductively
coupled plasma-emission spectroscopy (ICP-ES, ALS code ME-ICP41). A
gravimetric finish was performed on fire assays returning more than
10 g/t gold. Samples with visible gold were submitted to a metallic
screen analysis under ALS protocols (ALS Code: SCR21).
From July 2011 to January 2015 assays were
performed at ACME Analytical Laboratory in Santiago, Chile. Sample
preparation was completed at ACME Analytical Laboratory in
Itaituba, Brazil, where they were crushed, split and pulverized
until passing a 200 microns mesh. Gold was analyzed by fire assay
with an atomic absorption finish (ACME Code G6/FA430). Samples were
also assayed for a suite of trace elements using an aqua regia
digestion and ICP-ES (ACME Code: D01/AQ300).
The QAQC program implemented by the previous
operator involved the regular insertion of blanks, certified
standards and field duplicates. Blanks were used at the rate of one
blank at each 40 samples, and a standard was inserted every 10
samples. Field duplicates (one quarter of a core) were inserted at
each 15th sample or less. Coarse duplicates were submitted to the
laboratory after return of the rejects of quartering. Results from
QAQC are monitored regularly.
Qualified PersonThe technical
information presented in this press release has been approved by
Christian Beaulieu, P.Geo (OGQ 1072), Senior Geologist of G Mining
Services Inc. Christian is a member of the l’Ordre des géologues du
Québec, and a “qualified person” as defined by National Instrument
43-101 – Standards of Disclosure for Mineral Projects (“NI
43-101”). Christian has visited Tocantinzinho and has verified the
exploration results reported in this press release.
About G Mining Ventures Corp.G
Mining Ventures Corp. (TSXV:GMIN) is a mineral exploration company
engaged in the acquisition, exploration and development of precious
metal projects. Its flagship asset, the permitted Tocantinzinho
Project, is located in Para State, Brazil. Tocantinzinho is an
open-pit gold deposit containing 1.8 million ounces of reserves at
1.4 g/t. The deposit is open at depth, and the underexplored 688km2
land package presents additional exploration potential.
Additional InformationFor
further information on GMIN, please visit the website at
www.gminingventures.com or contact:
Dušan PetkovićVice President,
Corporate Development & Investor
Relations647.728.4176info@gminingventures.com
(1) Source: Feasibility study technical report
entitled “Technical Report Tocantinzinho Project Brazil” effective
date of June 21, 2019, filed on SEDAR by Eldorado Gold Corporation
on August 9, 2019.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 press release.
Cautionary Statement on Forward-Looking
InformationAll statements, other than statements of
historical fact, contained in this press release constitute
“forward-looking information” and “forward-looking statements”
within the meaning of certain securities laws and are based on
expectations and projections as of the date of this press release.
Forward-looking statements contained in this press release include,
without limitation, those related to:
- The Project’s permitting status and
mine life;
- The growth potential from expanded
mineral resources and exploration upside;
- The filing of an updated 43-101
technical report;
- The eventual positive construction
decision for early H2-22;
- The Program’s expected commencement
and duration, as well as the total meters to be drilled;
- The Program’s objectives and
specific targets, and GMIN’s ability to achieve them;
- The future property-wide
exploration drilling at Tocantinzinho;
- The potential extension of the
Project’s mine life, notably with satellite pits; and
- More generally, the above section
entitled “Timetable and Next Steps”.
Forward-looking statements are based on
expectations, estimates and projections as of the time of this
press release. Forward-looking statements are necessarily based
upon a number of estimates and assumptions that, while considered
reasonable by the Corporation as of the time of such statements,
are inherently subject to significant business, economic and
competitive uncertainties and contingencies. These estimates and
assumptions may prove to be incorrect. Such assumptions include,
without limitation, the items listed on the above section entitled
“Timetable and Next Steps”.
Many of these uncertainties and contingencies
can directly or indirectly affect, and could cause, actual results
to differ materially from those expressed or implied in any
forward-looking statements. There can be no assurance that (i) the
Program will de-risk the Project’s pre-production period and will
help optimizing mine planning, (ii) the known mineralization will
be extended below the current pit design, (iii) the follow-up work
on previous drill holes or on partially tested intervals will prove
conclusive, (iv) the Project’s mineral reserves will be optimized,
(v) the “underexplored” 688 km2 land package will yield additional
exploration potential, and (vi) the Corporation will bring the
Project into commercial production and will acquire any other
significant precious metal asset, as future events could differ
materially what is currently anticipated by the Corporation.
By their very nature, forward-looking statements
involve inherent risks and uncertainties, both general and
specific, and risks exist that estimates, forecasts, projections
and other forward-looking statements will not be achieved or that
assumptions do not reflect future experience. Forward-looking
statements are provided for the purpose of providing information
about management’s expectations and plans relating to the future.
Readers are cautioned not to place undue reliance on these
forward-looking statements as several important risk factors and
future events could cause the actual outcomes to differ materially
from the beliefs, plans, objectives, expectations, anticipations,
estimates, assumptions and intentions expressed in such
forward-looking statements. All the forward-looking statements made
in this press release are qualified by these cautionary statements
and those made in the Corporation’s other filings with the
securities regulators of Canada including, but not limited to, the
cautionary statements made in the relevant section of the
Corporation’s Management Discussion & Analysis. The Corporation
cautions that the foregoing list of factors that may affect future
results is not exhaustive, and new, unforeseeable risks may arise
from time to time. The Corporation disclaims any intention or
obligation to update or revise any forward-looking statements or to
explain any material difference between subsequent actual events
and such forward-looking statements, except to the extent required
by applicable law.
Figure 1 is available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/3d7f090c-d2cf-4afc-9cf2-fc6d142b6264
Figure 2 is available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/17f06400-dcf9-4b64-b638-a136e2610968
Figure 3 is available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/f2a11df1-02c5-4ea8-89d2-f6c19ee79a6e
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