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Trigg Mining (ASX:TMG) - Managing Director, Keren Paterson - The Market Herald
Managing Director, Keren Paterson
Source: The Market Herald
  • Trigg Mining (TMG) has received encouraging results from the 26-hole rotary drilling program at its Lake Throssell Sulphate of Potash Project in WA
  • Drilling returned high-grade assay results of up to 14,500 milligrams per litre, or 14.5 kilograms per cubic metre of sulphate of potash
  • These results align with the shallow hand auger sampling conducted late last year — further indicating Lake Throssell's large-scale potential
  • Trigg will now analyse its recent gravity survey ahead of an aircore drilling program to test the basal aquifer in an interpreted palaeochannel
  • This palaeochannel has the potential to host a large volume of potassium-rich brine
  • Additionally, Trigg is preparing to release a maiden mineral resource estimate for Lake Throssell later this year
  • Company shares are up 15.1 per cent and are trading for 9.9 cents

Trigg Mining (TMG) has received encouraging assay results from a recent 26-hole rotary drilling program at its Lake Throssell Sulphate of Potash Project in WA.

The drilling program included 26 holes drilled to an average depth of 6.5 metres with a total of 77 brine samples collected at various downhole depths.

These results have confirmed the presence of a high-grade surficial aquifer over an extensive area, with favourable host lithologies.

Specifically, the results returned grades of up to 14,500 milligrams per litre sulphate of potash (SOP), or 14.5 kilograms per cubic metre, with an average grade of 11,300 milligrams per litre SOP.

These results compare favourably to the shallow hand auger sampling that was conducted late last year. That sampling program returned grades of up to 14,800 milligrams per litre. This shows that Lake Throssell is a high-grade sulphate of potash project.

"These are exciting results which strengthen our conviction that we have a unique opportunity in front of us to rapidly delineate a high-quality, high-grade SOP deposit at Lake Throssell by the end of this year," Managing Director Keren Paterson said.

When combined with results from the initial hand auger survey, 90 per cent of the total holes drilled across the playa lake surface have reported a maximum SOP grade exceeding 10,000 milligrams per litre.

The brine chemistry showed favourable characteristics for solar evaporative concentration and lower waste salts, with a low sodium to potassium ratio and a high sulphate ion concentration. The results also suggest the downhole potassium grade profile is consistent within individual drill holes.

Many of the holes encountered strong brine-flows seen in units with increased gypsum content and silty sand channels.

In some holes, the gypsum layers were up to 20 centimetres thick and were often associated with good brine recharge rates.

The company also identified minor channel deposits in three holes, with one hole containing a clay-silt supported sand interval of at least 1.3 metres with rounded pebbles up to a 30-millimetre diameter.

Trigg has commenced modelling of the surficial aquifer which will be combined with the results of an infill gravity survey ahead of an aircore drilling program to test the basal aquifer in an interpreted palaeochannel. This palaeochannel has the potential to host a large volume of potassium-rich brine

The company hopes this drilling will support a maiden mineral resource estimate for Lake Throssell which will mark Trigg's second mineral resource estimate since listing late last year.

Company shares are up 15.1 per cent and are trading for 9.9 cents each at 11:01 am AEST.


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