Kathleen Valley Lithium Project

Liontown announces best-ever intercept of 90m @ 1.3% Li2O at Kathleen Valley

Liontown Resources Limited (ASX: LTR) has announced yet another record thick high-grade lithium intersect from the ongoing resource expansion drilling program at its 100%-owned Kathleen Valley Lithium-Tantalum Project in WA.

The company reported that drilling at Kathleen Valley has delivered a record intercept of 90m grading 1.3% Li2O from 209m down-hole.

Liontown said that thick, high-grade lithium mineralisation has now been intersected over a strike length of 900m at Kathleen Valley, with the mineralised trend open to the north-west and at depth. The company expressed confidence that the latest assays highlight the potential to substantially increase the maiden MRE.

Liontown is now planning a further 2,000m of RC drilling program which is expected to be completed in the next 1-2 weeks. Once completed, the company plans to use the results from the drill program to prepare an upgraded MRE for use in future feasibility studies.

Kathleen Valley Project

Liontown’s 100%-owned Kathleen Valley Project is a high-grade lithium deposit located on granted Mining Leases in an established and well serviced mining region, approximately 680km north-east of Perth, Western Australia.

The project has a Maiden Mineral Resource (MRE) of ~21.2Mt @ 1.4% Li2O (lithium) and 170ppm Ta2O5 (tantalum). 75% of the Mineral Resource is Measured or Indicated.

Drilling Program Ongoing

A 16,000m resource expansion drilling program had commenced in February 2019 at Kathleen Valley. The program is designed to increase both the size of and confidence in, the existing MRE by drilling immediately along strike, down-dip and between previous intersections.

Till date, the total amount of drilling completed by Liontown at Kathleen Valley comprises of 294 holes for 43,819m including 252 RC holes for 39,257m and 42 diamond core holes for 4,562m. From February 2019, a further 105 RC holes have been drilled, including five re-entries, for 20,586m.

Outstanding Intersections

Liontown said that the drilling at Kathleen Valley has delivered outstanding new intersections including:

  • 90m @ 1.3% Li2O from 209m including 8m @ 2.0% Li2O from 211m and 5m @ 2.4% Li2O from 233m and 6m @ 2.2% Li2O from 254m and 11m @ 1.9% Li2O from 279m;
  • 35m @ 1.7% Li2O from 250m including 8m @ 2.1% Li2O from 250m and 3m @ 2.3% Li2O from 260m and 5m @ 2.1% Li2O from 260m; and
  • 43m @ 1.7% Li2O from 240m including 5m @ 2.1% Li2O from 240m and 10m @ 2.0% Li2O from 263m and 5m @ 2.0% Li2O from 277m

The company reported that the intercept of 90m grading 1.3% Li2O from 209m down-hole is the best intercept recorded at Kathleen Valley till date.

The company said that the latest data supports its previously announced increased Exploration Target of 19 – 31Mt @ 1.2 – 1.5% Li2O. This target is in addition to the maiden MRE. If successfully converted to JORC compliant Mineral Resources, this could substantially extend the potential mine life.

High-grade Mineralised System

Liontown noted that the latest assays combined with geological logging of recently completed drill-holes indicate that the shallow-dipping Kathleen’s Corner pegmatites are merging with the Mt Mann pegmatites at depth to form a thick, moderately dipping pegmatite body.

This body remains open to the north-west and at depth, has been intersected over a strike length of at least 600m, and is interpreted to be the feeder zone for the Kathleen Valley pegmatites. This feeder zone is part of larger high-grade mineralised system which has now been defined over a strike length of at least 900m.

The company noted that the results for the drill holes confirm the strike and depth continuity of a thick high-grade zone defined by recently reported intersections including 52m @ 1.4% Li2O and 48m @ 1.5% Li2O.  

What’s Next?

Liontown reported that the current drill program is expected to take another 1-2 weeks to complete. Once done, the company plans to use the results to prepare an upgraded MRE for Kathleen Valley.

LTR said that the updated MRE, scheduled to be completed in mid-late June 2019, will be incorporated into further feasibility studies, including comprehensive metallurgical test work that is ongoing at ALS’s Balcatta laboratory in Perth.

Management Comments

Liontown’s Managing Director, David Richards, said: “With the resource drilling program now in its final phases, we have been able to generate some exceptional results from within what has clearly emerged as a feeder zone for the Kathleen Valley lithium deposit.

The combination of this thick, high-grade core to the deposit below the current conceptual open pit, together with the flat-lying geometry of the shallower portions of the pegmatite swarm, could potentially drive a significantly larger and deeper open pit that may present a very attractive mining proposition.”

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Written By Christopher Norris
The Founder and Managing Director of Mining.com.au, Christopher boasts a rich background in media, sales and advertising. He is driven by a relentless passion and fervour for constant innovation, ensuring that this platform remains on the cutting edge of news delivery.