Gold Mountain (ASX: GMN) says its latest stream sediment sampling within its Solonópole ground in Brazil’s Borborema Province has scored a top value of 173 parts per million lithium, indicating the project could possess significant lithium potential.
Management believes that potential is supported by other high-grade results from the program, in addition to the presence of artisanal mine workings for lithium, tourmaline, quartz, beryl and tin in pegmatites on ground immediately north of its tenements. The suite of minerals and their associated elements point strongly to a lithium-tantalum-caesium (LCT) style of mineralisation, suggesting a high degree of pegmatite fertility.
The workings are dotted along a north-south alignment within between 5km and 20km north, west and south-west of the town of Solonópole and look likely to extend the short 2km distance southwards into the company’s ground. Similar artisanal activity has been reported within Gold Mountain’s tenure and while no workings have been identified to date, management says future mapping in the area will provide for a more comprehensive search.
The company’s regional reconnaissance stream sediment geochemical sampling involved 434 samples taken from across its block of 14 contiguous Solonópole tenements. Management has plotted multiple zones of lithium anomalism in all but one of its 14 tenements and their distribution appears at first impression to support interpretation of a north-west structural control.
Whatever comes out in the wash from the cluster of tenements stretching for some 280 square kilometres, the peak lithium anomalism in a range of between 95ppm and 173ppm lithium occurs in three separate areas that span the tenement group. The next tier of anomalism, between 81ppm and 89ppm lithium, occurs in four areas at opposite ends of the group, while a third tier of between 68ppm and 80ppm is notably widespread as multiple anomalies in 11 tenements and is plainly significant.
The fourth and lowest tier of anomalism is still significant and also extensive, in the range of 64ppm to 67ppm lithium and is broadly scattered throughout 10 of the tenements in the group.
Importantly, two tenements in the extreme north-west feature clusters of anomalies in all four categories, while clusters of three anomaly levels can be seen in two tenements in the extreme south-east of the group. In all, the overall geochemical lithium response across the entire project area defined by the original reconnaissance program is impressive.
Gold Mountain’s future plans include follow-up soil sampling across two areas featuring the strongest anomalism, accompanied by some infill stream sediment geochemical sampling in the bigger catchments, with the object of generating drill targets.
The company has recently been as busy as a lead performer at the annual Brazilian Carnival, with a wave of stream sediment sampling programs throwing up rare earths and lithium potential within several different tenement groups in the South American country. It will now be interesting to see where management will shine its spotlight next.
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