WA-based explorer Trigg Mining (ASX: TMG) has confirmed it is ready to launch the next stage of ground-based exploration at its flagship Lake Throssell sulphate of potash (SOP) project, 170km south-east of Laverton.
The company will commence an in-fill gravity survey comprising 14 lines for 107km to provide the first comprehensive picture of the project tenement since its discovery last year.
Survey data will help Trigg’s exploration team to refine drilling locations for an aircore program scheduled this quarter.
The helicopter-supported in-fill gravity survey is targeting near-surface brine mineralisation to depths suitable for potential trench-based extraction methods.
Trigg is also planning to test areas of observed high-gypsum content which have potential to supply high-flow rates due to their increased porosity and permeability, as well as elevated SOP content.
The in-fill survey follows a 24-hole shallow lake rotary drilling program which began last week.
Managing director Keren Paterson said results from the field work will underpin a maiden JORC mineral resource for Lake Throssell.
“This is the start of what we anticipate will be a very busy period for our company as we evaluate this project, which we regard as the jewel in the crown of our SOP portfolio,” she said.
“We are very excited about what the next few months can deliver as we begin to move up the value curve at Lake Throssell.”
Trigg is looking to secure Australia’s sustainable agriculture future through the exploration of SOP, which is a potassium fertiliser necessary for global food production and human nutrition.
SOP provides essential macro-nutrients for plant growth without the detrimental elements of chloride found in muriate of potash (MOP).
In addition, SOP can be produced sustainably through the solar evaporation of potassium-rich hypersaline brine water, without the need for large open pits or waste-rock dumps.
Lake Throssell stretches over approximately 1,500sq km and comprises more than 380sq km of salt lake playa and 140km of interpreted palaeochannels (ancient underground rivers) all of which are believed to be highly-prospective for brine-hosted SOP.