Brazil Lithium Valley Exploration
Gold Mountain Limited (ASX: GMN) is an Australian, publicly listed company exploring for lithium in the highly prospective Lithium Valley of North-Eastern Brazil.
LITHIUM VALLEY PROJECTS
GMN Lithium Valley tenements have several high-calibre targets, each with significant potential:
LOGRADOURO
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Over 250 known pegmatites
- 93 samples have been collected from this tenement so far.
- Lies along strike from numerous known tantalum occurrences and one known lithium occurrence.
Icó
Contains known beryl-producing pegmatite
- Icó project contains known beryl-producing pegmatite with additional targets interpreted from satellite imagery.
- The pegmatite is a post-tectonic pegmatite with a substantial quartz core visible in one side of the shaft.
- Abundant perthitic feldspar, a quartz core and areas with small and large muscovite books.
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Cerro Cora - Porta D'Agua
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Stream sediment sampling results contained lithium anomalies
- Anomalies indicate LCT pegmatites within the tenement area.
- LCT type pegmatites discovered on interpreted structures cross-cutting regional structural trends in suitable host rocks distant from exposed granites.
- Lies in the northern part of the Seridó Li-Pegmatite field.
Salitre South
Anomalies suggest at least two lithium bearing pegmatites are present
- Soil sample results were interpreted, and anomalies were present, coincident or parallel to mapped possible pegmatites on the ground.
- Pegmatites of two ages are present on the Salitre South tenement, one deformed and a second suite of undeformed pegmatites.
- A second undeformed pegmatite has also been found.
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Solonópole
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18 pegmatite outcrops recorded
- 102 samples collected so far.
- Areas with quartz-tourmaline float, a lithium-associated mineral, were found.
- The extent of leaching of lithium, from spodumene in particular, was striking.
- Lie along structural strike from the Oceana tenements and contain similar rock sequences and granite suites.
- Occurrences of tourmaline were located near some satellite imagery anomalies.
JUREMAL
Lies within the Sao Francisco craton
- Highly weathered spodumene was found as float within and adjacent to tenement 870208/2022 at Juremal.
- Rock samples confirm that the leached spodumene previously found is of substantial interest and remains a worthwhile target.
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Custodia
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18 pegmatite outcrops recorded
- Lithium in soil anomalies reported on 10th January 2023.
- The full extent of the lithium responses within the current area of known lithium anomalism is to be defined.
- LCT pegmatites were confirmed from rock chip sample geochemical data
Salinas
Pegmatites were seen in artisanal workings
- Geology was found to vary slightly from biotite schists to low-grade biotite gneisses, with abundant outcrops in road cuts and occasional outcrops in more major creek beds.
- Small to moderate-scale pegmatites were seen in artisanal workings which may indicate widespread lithium mineralisation.
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