Great Thunder Initiates Mineralogical and Chemical Testing of Lithium-Bearing Minerals from Chubb and Bouvier Properties
Victoria, British Columbia (FSCwire) - Great Thunder Gold Corp. (TSXV: GTG) is pleased to
announce that it has engaged SGS Metallurgical Laboratory to conduct mineralogical and chemical analyses on lithium-rich rock
samples collected from Great Thunder’s Chubb and Bouvier properties located in the Preissac-Lacorne area of the Abitibi
Greenstone Belt, Quebec.
The analyses will include scanning electron microscopy, particle mineral analysis, electron microprobe and x-ray diffraction
to characterize and quantify the spodumene and other lithium-bearing minerals for the purpose of future ore beneficiation.
In addition, Mr. Joel Simard, a geophysicist from Quebec, has been hired to undertake in-depth processing and interpretation
of data acquired in the 2010 ground-based magnetic and induced polarization surveys. The processing will include 3-D mag and IP
inversions that will help define precise future drilling targets.
The Chubb Property
The Chubb property is located in northern Québec in the Abitibi-East County, Lacorne municipality, NTS map sheet 32C05. The
lithium claims are situated within the Preissac-Lacorne plutonic complex of the Abitibi Greenstone Belt. The complex forms one of
the best prospective areas for lithium mineralization, including the Quebec Lithium mine, for which Canada Lithium reported
measured and indicated resources of 29.3 Mt grading 1.19% Li2O and 20.9 Mt of inferred resources grading 1.15%
Li2O, respectively, according to a technical report by Canada Lithium filed on SEDAR June 8, 2011.
The Chubb property lies 32 kilometers north of Val d’Or and consists of 35 contiguous recorded mineral claims for a total area
of 1,509 hectares or 15.1 square kilometers. The property geology is dominated by quartz monzodiorite and metasomatized quartz
diorite (tonalite). A swarm of spodumene-rich granitic pegmatite dykes intrude fractures and small faults within the plutonic
rocks. The pegmatite dykes are 1 to 6 meters thick, oriented 345° – 350° and vary in length from 25 to 250 meters. They are
crudely zoned, some having quartz cores and border zones of aplite. The granitic pegmatites are composed of quartz, albite and/or
cleavelandite, K-feldspar, muscovite, with 5% to 25% spodumene. There are three important granitic pegmatite dykes containing
spodumene mineralization (Dyke #1, #2 and Main Dyke).
Exploration of the Chubb property persists since the early 1950s and mainly consisted of mapping, trenching, geophysical
surveys and diamond drilling. In 1991, J. Descarreaux estimated a possible historical resource of some 1,814,370 metric
tons. 1 The best drilling intersections were obtained in 1994 by Abitibi Lithium Corp. producing intervals of
3.72 m @1.78 wt. % Li2O, 2.75 m @1.00 wt. % Li2O and 2.38 m @1.25 wt. % Li2O. In 2010,
International Lithium carried out magnetic and IP geophysical surveys, mapping and channel/grab sampling in the area surrounding
the three principal spodumene-bearing dykes. The main dyke, which is 300 meters long, was shown to have Li2O
concentration of 1.00 wt. % (n=41).
The Bouvier Property
The Bouvier property is located within the Preissac-Lacorne plutonic complex of the Abitibi Greenstone Belt, in the
Saint-Mathieu municipality of Figuery Township (NTS map sheet 32D08). The geological setting and structure of the
volcano-sedimentary assemblages form an ideal host for lithium-rich pegmatites being located between the Northern Manneville
Deformation Zone and the northern edge of the fertile Lacorne monzogranite pluton.
The Bouvier property consists of 16 contiguous recorded mineral claims for a total area of 692 hectares or 6.92 square
kilometers. The southern Bouvier property contains several exposures of biotite±muscovite monzogranitic plutonic rocks intruding
metasediments and injected by granitic pegmatite and aplite dykes that constitute nearly 20% of the rock. Many granitic
pegmatites contain beryl and tantalite, but very few have spodumene.
To the north, the metasediments are in structural contact with the metavolcanic rocks of the Malartic and Harricana groups,
with the Manneville Deformation Zone marking the contact between the metasedimentary and metavolcanic formations.
Spodumene-bearing granitic pegmatite dykes occur only south of the Manneville Fault and were emplaced principally in
metasediments. The dykes are oriented parallel to the Manneville Fault and can reach 100 meters in length and 10 meters in
apparent thickness. Most granitic pegmatites are zoned, some having quartz cores and border zones of aplite. They are composed of
quartz, albite and/or cleavelandite, K-feldspar, muscovite, with 5% to 25% spodumene. Accessory minerals are beryl, tantalite,
garnet, bismuthine and molybdenite.
1 The estimates presented are treated as historic information and have not been verified or relied upon
for economic evaluation by the Company. These historical mineral resources do not refer to any category of sections 1.2 and 1.3
of National Instrument 43-101, such as mineral resources or mineral reserves as stated in the 2010 CIM Definition Standards on
Mineral Resources and Mineral Reserves. The Company is unable to verify the data acquired by the various historical drilling
campaigns, and must undertake additional sampling and drilling to verify historical estimates. A Qualified Person has not
done sufficient work to classify the historical estimates as current mineral resources or mineral reserves. The Company is not
treating the historical estimates as current mineral resources or mineral reserves.
The Bouvier property was submitted to sporadic mining exploration from the early 1950s to 1979, which included geological
mapping, rock sampling, trenching and diamond drilling. A bulk sample taken by Teck Corporation and reported in their 1979 Annual
Report, returned an average grade of 1.39% Li2O and an estimated “possible” historical resource of 907,000
tons.1 In 2010, Mineral Hill Industries Ltd. carried out an exploration program involving line cutting, a magnetic and
IP survey, trenching and panel and grab rock sampling, The work unearthed east-west oriented spodumene-bearing granitic
pegmatites parallel to the Manneville Deformation Zone. The main dyke displayed an average lithium concentration of 1.51
Li2O wt. % (n=20).
A technical report, entitled The Chubb and Bouvier Lithium Properties, Preissac-Lacorne Plutonic Complex, Abitibi
Subprovince, Quebec, Canada and dated August 2, 2016, is available at www.sedar.com.
The technical contents of this release were approved by Michel Boily, Ph.D, geo., an independent Qualified Person as defined
by National Instrument 43-101.
ON BEHALF OF THE BOARD
Signed “Kevin C. Whelan”
Kevin C. Whelan, President
Direct line: (250) 474-6640
Neither 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.
To view this press release as a PDF file, click onto the following link:
public://news_release_pdf/GreatThunder12202016.pdf
Source: Great Thunder Gold Corp. (TSX Venture:GTG)
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