GreenTech Metals has presented evidence of three key lithium trends within its Kobe and Osborne properties in the Pilbara region of Western Australia following a soil geochemical sampling program.
The campaign has confirmed the continuity of the Kobe South lithium anomaly, which is clearly defined by a 5.5 km long east-southeast trending corridor with maximum responses ranging from 200 ppm to 467 ppm lithium oxide. The Company believes that the corridor – which ranges from 300 m to 1 km wide – encloses several pegmatites.
The geochemistry of the infill soils in the adjacent Osborne Joint Venture (JV), which GreenTech (51 percent) shares with Artemis Resources (49 percent), indicates a continuous and credible east-west lithium trend approximately four kilometers long and up to 1.3 kilometers wide.
Surface mapping at Osborne shows that the orientation of some pegmatites deviates significantly from the expected dominant east-west direction and can vary from east-west, north-west/south-east and north-east-south-west, suggesting that a different structural overprint may control a ‘zigzag’ pattern of individual pegmatites and their interconnections.
The first indication from the field that supports GreenTech’s pegmatite mapping is the pronounced zigzag folding in the Kobe South-Osborne trend, which is highly reminiscent of a confluence of structures. The broad footprint of the Osborne geochemical anomaly and the distribution of peak centers suggest a high probability of multiple pegmatites within the sampled area, which extends east-west for approximately 4 km of the 4.6 km wide concession.
The Osborne soil lithium oxide anomaly peaks range from 312 to 712 ppm lithium oxide, mostly well supported by adjacent similar readings, which together form a credible zone of interest worthy of further investigation.
These results are supported by the discovery of additional indicator elements consistent with other anomalies associated with a nearby lithium-bearing pegmatite. These results give us great confidence that GreenTech can continue to make exciting lithium discoveries in the region in the future.
Most interestingly, however, the latest detailed geochemical data indicate almost certain continuity between the eastern end of the Kobe South anomaly – where sampling ended on the eastern boundary of the Kobe exploration license – and the anomaly in the Osborne area. The two areas on the respective tenements are separated by 3.4 km between the license boundaries.
The Kobe anomaly, which is located just inside the northern limit of the license area, has a persistent east-west trend that is believed to extend westward and contiguous with the Kobe West lithium anomaly, although the two zones are again separated by property boundary cutouts.
Kobe West is located at the extreme western end of the Kobe trend where southwest trending lithium geochemistry extends for over 700 m and is 200 m wide. The Kobe lithium oxide anomaly from current infill sampling peaks between 182 ppm and 305 ppm lithium oxide, while Kobe West values ​​range from 160 ppm to 220 ppm.
There is little doubt that the two zones, separated by approximately 2 km, are contiguous. This claim appears to be supported by a recent announcement by Accelerate Resources, which owns contiguous properties in the section, which reported strong lithium-cesium soil anomalies on the Kobe-Kobe West lithium trend.
This means that the combined trend of Kobe-Kobe West could be at least 9.5 km long.
Kobe West has so far been defined by collecting soil samples on a 200 x 50 meter grid, while the larger Kobe trend has only been outlined by collecting soil samples on a 400 x 100 meter grid.
GreenTech says the infill geochemistry has given the Company sufficient confidence to begin planning drilling in its higher grade anomalous areas to identify the pegmatite deposits. Management is also considering updating its conservation permits to include new anomalous areas that it may wish to add to its growing list of initial drill targets.
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