Zenith Minerals (ASX:ZNC) has identified wide zone of lithium-potential pegmatites on its Split Rocks Project in the Forrestania Belt. None of the identified pegmatites, orginally drilled for gold exploration, have been assayed for lithium. Zenith is planning a major surface mapping and sampling program as well as resampling of historic drillholes before commencing drilling.
- Pegmatites with thicknesses greater than 50m recorded in historical drill logs over a 2.8km by 0.3km area north and east of the British Hill gold deposit, whilst several historical exploration reports note pegmatites extending over 26km of strike of the Van Uden Shear Zone, central to Zenith’s new exploration licence applications;
- None of the pegmatites have been previously assayed for lithium;
- Preliminary field traverses by Zenith geologists confirm thick pegmatite zones in spoil piles from historic RAB drilling. Thorough surface mapping and sampling, plus resampling and assaying of old drill material to precede planned drill testing.
- Zenith’s tenure covers 480 square kilometres and contains multiple segments of the lithium prospective Forrestania Greenstone Belt, with potential strike extensions to the new Mt Holland lithium project as described in recent Kidman Resources Limited announcements, including an area approximately 2km x 500m where historic drilling intersected pegmatites immediately adjoining Kidman’s Van Uden North lithium target;
Zenith Minerals Limited (“Zenith” or “the Company”) is pleased to advise that review of previous exploration activity conducted within its new 100% owned exploration licence applications at Split Rocks in the Forrestania Greenstone Belt of Western Australia has identified multiple references to pegmatites that may be potential hosts to lithium mineralisation.
Pegmatites with thicknesses greater than 50m are recorded in historical drill logs over a 2.8km by 0.3km area north and east of the British Hill gold deposit, whilst several, historical exploration reports record pegmatites extending over 26km of strike of the Van Uden Shear Zone, within the central portion of Zenith’s new exploration licence applications. Pegmatites were logged in multiple shallow drill holes completed by three separate companies whilst another company identified pegmatites during geological mapping programs exploring for gold (Figure 1).
Zenith’s tenure covers 480 square kilometres and contains multiple segments of the lithium prospective Forrestania Greenstone Belt, with potential strike extensions to the new Mt Holland lithium project as described in recent Kidman Resources Limited announcements, including an area approximately 2km x 500m with pegmatites in historic drilling immediately adjoining Kidman’s Van Uden North lithium target.
The Company notes that the majority of previous exploration activity reviewed is surface sampling focused solely on gold exploration, with no evidence of any lithium analyses during past exploration programs, nor any significant fresh rock drilling programs.
Zenith’s geologists believe that the new application areas are highly prospective for lithium as well as gold mineralisation. The Forrestania Greenstone Belt is intruded by abundant pegmatite dykes, many of which are now being shown to be lithium (spodumene) rich.
Initial surface mapping and rock sampling along with resampling of historic drill hole cuttings where preserved, is planned prior to drill testing.
Background to Split Rocks Project
The Split Rocks licences are located 10km northwest of the new Earl Grey lithium pegmatite discovery announced by Kidman Resources Limited (ASX release 15th July 2016) where reported drill intercepts include: 52m @ 1.53% Li2O and 45m @ 1.81% Li2O.
As announced to the ASX on the 25th July 2016 and the 27th July 2016, Zenith applied for an initial exploration licence at Split Rocks in early March 2016 following the recognition by the Company that the region contained lithium enriched granites, that application was subsequently replaced by four licences over a much expanded area following the announcement by Western Areas Limited (ASX quarterly report released 22nd April 2016) of lithium mineralisation in drilling at Mt Hope and South Ironcap in the Forrestania Belt, and Kidman Resources Limited’s recent lithium announcements.