Zenith Minerals (ASX:ZNC) has identified three large scale lithium geochemical anomalies at the Split Rocks Project, located in the Forrestania Region of WA. Zenith has defined three coherent zones of anomalous lithium, tantalum and rubidium surrounding granite bodies that may be potential source rocks for lithium mineralisation. Split Rocks is located less than 10km NW of Kidman Resources’ Earl Grey lithium project.
- Three new, large scale lithium geochemical anomalies defined at Zenith’s 100% owned Split Rocks Project in the Forrestania greenstone belt, Western Australia;
- Anomalous zones occur surrounding granite bodies that may be potential source rocks for lithium pegmatites;
- Zenith tenure located 10km northwest of Earl Grey lithium pegmatite deposit (ASX:KDR/SQM);
- Targets to be drill tested early 2018, following field assessment and permitting;
- Sampling for lithium to date covers less than 10% of the Company’s tenement area.
Zenith Minerals Limited (“Zenith” or “the Company”) is very pleased to advise that first pass geochemical sampling in the central portion of the 100% owned, Split Rocks project has returned three large scale, coherent, lithium anomalies surrounding granite intrusions (Figure 1). Zenith is systematically exploring the Split Rocks project located in Western Australia for both gold and lithium. Large parts of the western portion of the project area are covered by thick, low lying scrub that has restricted past exploration activities.
The Split Rocks Project covers a large area (>500sqkm) of the Forrestania greenstone belt, this emerging lithium district is host to the new Earl Grey lithium deposit containing 128Mt @ 1.44% Li2O (KDR ASX Release 5th Dec 2016). Zenith is exploring for this style of lithium rich (spodumene) pegmatite within its large land holding.
As detailed in Zenith’s ASX release on the 14th September 2017 first pass surface soil and auger samples taken at Split Rocks, to date covering less than 10% of the Company’s tenements, were analysed at a commercial laboratory for gold only initially and outlined strong gold anomalies at the Mawson and Casey prospects, where permits to allow drill testing have recently been granted, and drilling is planned to commence this week.
The Company has now analysed the majority of those assay pulps for lithium, the results of which are detailed in this release.
Zenith has defined three coherent zones of anomalous lithium, tantalum and rubidium surrounding granite bodies that may be potential source rocks for lithium bearing pegmatites (Figure 1).
The northern lithium anomaly outlined by auger sampling on 400m spaced lines extends over 2.5km of strike with discrete zones that are 500m in width (Figure 2). Samples from a further four sample lines in the south eastern portion of the grid yet to be analysed for lithium, these will be dispatched to the laboratory for analysis this month.
The central lithium anomaly outlined by soil sampling also on 400m spaced lines extends over 1.2km of strike, open to the south and is 200 to 500m in width (Figure 3).
In the southwest soil sampling has defined lithium, rubidium and tantalum anomaly over 2.5km of strike with a central, strong, coherent lithium zone comprised of two subparallel trends extending over 1.2k of strike (Figure 4). Non lithium bearing pegmatite crops out in the core of this central zone where the lithium soil results are of low order. This may indicate a possible zoned pegmatite system whereby lithium bearing pegmatite may be present beneath the soil cover some 100 to 150m away from the outcrop.
The tenor of these large scale lithium anomalies is comparable with competitor surface results that upon drilling have returned significant bedrock lithium mineralisation in several instances. Field follow-up planned for this month will precede permitting and drill testing.