Investor Presentaiton

Our Focus is on Pegmatites from S-Type (peraluminous) Granitic Sources brunswick bru exploration Depth (km) OROGENIC pluton-unrelated OROGENIC pluton-related OROGENIC or ANOROGENIC pluton-related DPA pegmatites according to Wise et al. (2021) RMG pegmatites according to Wise et al. (2021) Palaeosurface Shear-induced melting Decompression melting 0 Miarolitic Anatectic NYF/DPA-2 pegmatite UST and stockscheider Granite-derived NYF/RMG-2 pegmatite Tys ord Miarolitic 5 10 Anatectic LCT/DPA-1 pegmatite Granite-derived LCT/RMG-1 pegmatite Heat flow Fluid flow H₂O-present melting Leinster 15 Muscovite- dehydration melting Li-bearing paragneiss Biotite- 20 dehydration 25 melting Amphibolite- dehydration melting F-, REE-bearing amphibolite Miarolitic Wolfsberg Li-, B-bearing metasediments + + + S-type granite I- and A-type granites Li-bearing paragneiss + V F-, REE-bearing amphibolite 4 TSX.V: BRW FAULTING: Compressional/ transpressional tectonics HEAT SOURCE: Mafic magma underplating HEAT SOURCE: Crustal thickening and/or mafic magma underplating HEAT SOURCE (anorogenic): Mantle upwelling HEAT SOURCE (orogenic): Crustal thickening and/or mafic magma underplating 8

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