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Trigg Mining releases maiden indicated resource for Lake Throssell

Published by
World Fertilizer,


Trigg Mining has released the estimation of a maiden indicated mineral resource for its Lake Throssell sulfate of potash (SOP) project near Laverton in Western Australia.

A drainable indicated mineral resource of 1.9 million t of SOP at 4985 mg/litre of potassium (K) (or 11.1 kg/m3 K2SO4) has been estimated based on the results of the recent trench pump trials of the surficial aquifer resource.

As a result of this mineral resource estimate (MRE) upgrade, 13% of the previously announced total MRE of 14.3 million t of drainable SOP at 4665 mg/L potassium (or 10.4 kg/m3 K2SO4) is now in the higher confidence Indicated category and available for conversion to ore reserves.

The exploration target has also been updated, indicating strong potential to expand this MRE. The new exploration target, in addition to the MRE, has been defined as a range of 2.6 - 9.4 million t at 9.1 - 10 kg/m3 K2SO4. The potential quantity and grade of the exploration target is conceptual in nature. There has been insufficient exploration in these areas to estimate a mineral resource. It is uncertain if further exploration will result in the estimation of a mineral resource.

The exploration target is based on the results of exploration activities undertaken to-date on granted tenement E38/3065, encompassing a strike length of ~36 km of the interpreted palaeovalley. An additional ~34 km of strike length is extrapolated into tenement applications E38/3544, E38/3483, E38/3458 and E38/3537, which are considered to host similar geology and brine characteristics.

Trigg Mining’s Managing Director, Keren Paterson, said: “This is another great result by our team, which puts Trigg Mining front and centre of the new-generation SOP industry in Western Australia.

Having delivered our maiden Inferred Resources just over two months ago, we have moved rapidly to estimate a high-quality Indicated Resource that will provide the basis for the initial payback period to underpin the Scoping Study that is currently underway and due for completion later this quarter.

In addition to improving our confidence in the current Mineral Resource, we have also demonstrated continued upside potential with an updated Exploration Target of 2.6 - 9.4Mt of SOP, encompassing tenements to the north and south which are awaiting grant.

We expect to convert additional tonnes to Indicated status next year as we progress work on the deeper portions of the resource and further expand our overall inventory with further drilling. However, having a maiden Indicated Resource allows us to progress our economic evaluation of Lake Throssell to the next stage, and commence initial discussions with potential off-takers and financiers.

Together with our Lake Rason Project, we now have a high degree of confidence that we have a large and potential multi-decade, long life potash project in Western Australia.”

Read the article online at: https://www.worldfertilizer.com/project-news/26072021/trigg-mining-releases-maiden-indicated-resource-for-lake-throssell/

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