THE RESEARCH BRAINPreview
Open in TheBrain

CHUBB LITHIUM PROJECT

The Chubb Lithium Property is situated within the Preissac-Lacorne plutonic complex of the Abitibi greenstone belt — the complex forming one of the best prospective areas for lithium mineralization. The plutonic complex generated the Quebec lithium mine for which Canada Lithium reported measured and indicated resources of 29.3 million tonnes grading 1.19 per cent lithium oxide (Li2O) and 20.9 million tonnes of inferred resources grading 1.15 per cent Li2O, respectively, according to a technical report by Canada Lithium filed on SEDAR on June 8, 2011.

The Chubb Property

The Chubb Lithium property is located 25 kilometres north of the mining community of Val d’Or, Quebec (Figure 1). It is hosted within the La Corne Pluton which is also host to North American Lithium’s deposit with reported proven and probable reserves of 17.06 Mt grading 0.94% Li2O and measured and indicated resources of 33.24 Mt grading 1.19% Li2O. The Chubb Lithium property is also close to the Authier Lithium Deposit of Sayona Mining (ASX: SYA) which is estimated to contain measured and indicated resources of 17.18 Mt grading 1.01% Li2O and inferred resources of 3.76 Mt grading 0.98% Li2O.

Figure 1: Regional location of the Chubb Lithium Property within the La Corne Pluton

The Chubb Lithium property consists of 35 contiguous mineral claims for a total area of 1,509 hectares. The property geology is dominated by quartz monzodiorite and metasomatized quartz diorite (tonalite). A swarm of spodumene- rich pegmatite dykes intrude fractures and small faults within the plutonic rocks. The pegmatite dykes are 1 to 6 metres thick so far, oriented northwest and vary in length from 25 to 250 metres. The pegmatites are composed of quartz, albite and/or cleavelandite, K- feldspar, muscovite, with 5% to 25%

spodumene. There

-9-

are three important pegmatite dykes containing spodumene mineralization (Main Dyke, Dyke #2 and Dyke #3) (Figure

2).

Great Thunder drilled 3 holes totalling 306 metres in 2017 on the Property. Highlights included 1.33% Li2O over 5.3 metres in hole C-17-01. Diamond drilling by Wrightbar Mines in 1994 intersected 3.7 metres grading 1.68% Li2O, 2.74 metres grading 1.00% Li2O and 2.4 metres grading 1.25% Li2O.

The Company filed an updated National Instrument 43-101 Technical Report relating to its Chubb Lithium property. The complete technical report, entitled“NI 43-101 Technical Report, Chubb Property, Preissac-Lacorne Townships, Quebec, Canada, Val d’Or Mining Camp for Great Thunder Gold Corp.” and dated February 1, 2021, is available on SEDAR.

Figure 2: Pegmatite dyke swarm at the Chubb Lithium Property

In February 2021, the Company engaged Diafor Inc. to undertake a 12-hole drilling program for a total of 2,000 metres aimed at the definition of the Main Dyke, Dyke 2 and Dyke 3 at depth and laterally.

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.

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).

Donald Théberge, P.Eng., M.B.A., an independent qualified person as defined in National Instrument 43-101, has reviewed, and approved the technical contents herein on behalf of the Company.