These new targets have been generated through the continuous regional surface sampling campaign undertaken by the Company where additional regional surface samples have been received. These results assist the exploration team in mapping the areas and focusing on selected prospective areas within the Amargosa, Jitauna, and Jaguaquara blocks for further exploration and drilling as the Company awaits the drill assays from Rio Negro and additional surface samples from the region.
Based on the geochemical surface assay results integrated with the geology and airborne radiometric thorium, uranium, and ternary maps, the samples with anomalous high grade REE grades are associated with regions of thorium anomalies, sometimes with associated uranium and ternary anomalies.
Equinox Resources Managing Director, Zac Komur, commented:
“We’re in the very early stages of exploring our REE ground at our Campo Grande prospects, with only ~1% of our prospects currently drilled. By working through geochemical and geophysical data to pinpoint new additional drill targets, we have identified some high-priority areas for a drilling campaign aimed at delineating hard rock REE deposits.
This process has focused our efforts on areas within the Amargosa, Jitaúna, and Jaguaquara blocks. We plan to deploy in depth drilling programs on these new drilling targets proximal to Brazilian Rare Earths Discovery imminently.”
Amargosa, Jitaúna and Jaguaquara are geologically inserted in the Jequié Complex and Volta do Rio Plutonic Suite that is known for hosting high-grade rare earth mineralisations in hard rock. The Jequié Complex is an assemblage of predominant metatonalites, metatrondhjemites and metagranodiorites closely associated with subordinate metabasic to intermediate rocks, metaultramaic rocks as serpentinites and pyroxenites.
The Volta do Rio Plutonic Suite is composed of three main petrographic rock types: granodiorites and monzogranites with normal contents of mafic minerals, a bimodal association of amphibole- bearing-metaleucogranites and associated pegmatites–aplites, maic-ultramaic to intermediate rocks and cumulates.
The high-grade mineralisation in hard rock of the Volta do Rio Plutonic Suite can occur from the surface in outcrops and extend up to 75 m deep. The Volta do Rio Plutonic Suite is distinguished by a bi-modal formation of light coloured granite gneiss and REE-Nb-Sc-U cumulate mineralization. The high grade REE-Nb-Sc-U cumulate appears to be layered within the province scale and most likely formed via the separation process of the parent magma.
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