Brazil
Perseverance Project
Location
Perseverance is in northeastern Minas Gerais, in the geological extensions of the Lithium Valley (Figure 1), a politically defined area including the towns of Salinas and Araçuaí that lie adjacent to the mines and JORC / NI43-101 compliant resources of CBL, Sigma Lithium and Latin Resources. Belo Horizonte is the regional capital for the state of Minas Gerais. Numerous artisanal mines exist within the tenements (Figure 2).
Figure 1 – Perseverance Project Lithium tenements in the Araçuaí Orogen in relation to the G4 source granites and projects held by Sigma Lithium, CBL and Latin Resources.
A number of high profile Lithium explorers & developers are located in the region including the well-known Sigma Lithium (TSXV:SGML) and Latin Resources (ASX:LRS).
Figure 2: Historic Mine workings within the Perseverance tenements (location shown on Figure 1).
Geology
The Araçuaí Orogen has a series of characteristics that make it prone to lithium mineralisation. It has a lower Proterozoic to Archean basement at least to the west of the suture shown on Figure 3 below, a protracted time at high temperatures, probably underplating and intrusion by mafic magmas and a series of granites known to be lithium prone that are in places only partially unroofed.
Structural interpretation in the Araçuaí Orogen undertaken by the Vendor’s structural expert has identified likely locations for concealed granites that may be at shallow depth where the sediments in the target zones are likely to be lithium pegmatite bearing. Known mineralisation in the Araçuaí Orogen includes not only common pegmatite minerals but some occurrences of minerals indicative of LCT type pegmatites.
Figure 3 – Simplified geological map of the central part of the Araçuaí orogen (including Perseverance Project locations), the Rio Doce magmatic arc (RDA), the Abre Campo shear zone (ACSZ) and the associated schist belt. M, Macaúbas Group; DS, Dom Silvério Group; J, Jequitinhonha Complex; S, Salinas Formation. [Reference: Peixoto et al 2015].