ASX Announcement
9 June 2022
Eyre Project delivers Excellent Early Results in WA
Highlights | ||
only | • | Substantial 2.5km long nickel and copper soil anomaly identified from LRV's maiden |
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geochemical soil survey at Eyre Project: | ||
o Open east and west along strike | ||
o Peak values of 1,311ppm Ni and 650ppm Cu | ||
• Anomaly associated within the Jimberlana Dyke which is historically known to host base metal | ||
and PGE mineralisation, the potential of which has recently been highlighted by Galileo Mining. | ||
• Results confirm and extend anomaly identified during historical exploration in the 1970s | ||
• Expanded survey underway to test other areas within or adjacent to the Jimberlana Dyke which | ||
has a strike extent of over 30km within the Larvotto project area. |
personalLarvotto Resources Limited (ASX: LRV, TGAT: K6X, 'Larvotto' or 'the Company') is pleased to announce encouraging nickel and associated base metal results from a recent geochemical soil survey undertaken
on the Jimberlana Dyke at the Mt Norcott prospect on the Company's Eyre Project, located 25km east of Norseman in the Eastern Goldfields, Western Australia.
Larvotto exploration licences cover 692km2 of ground east of Norseman that is prospective for nickel, cobalt, copper, lithium and gold. The potential of the ground has been recently highlighted by the success of Liontown Resources Ltd (ASX: LTR, 'Liontown') for its lithium potential and Galileo Mining Ltd (ASX:GAL, 'Galileo Mining') for its nickel and PGE potential.
ForManaging Director, Ron Heeks commented,
"After being overlooked for a long time, the Norseman area is proving to be highly prospective for a wide variety of metals. We are therefore delighted that the first geochemical soil survey undertaken by LRV at Eyre has delivered excellent results. Following up historic work at the Project, we have confirmed that the Mt Norcott prospect is anomalous for nickel and copper over a 2.5km trend that remains open along strike. Our program has delivered a peak soil value of 1,673 ppm Ni, which is nearly 10 times higher than background levels and which certainly warrants follow up. The Jimberlana Dyke is also gaining attention from the recent discovery of base metals and PGE by Galileo on and near the dyke to the west of Larvotto.
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"The next step at Eyre is to further define the length extent of the anomaly and undertake geophysics to determine the vertical extent. With these results as well as the interest in nearby base metal and PGE projects, we look forward to announcing further positive results from this poorly explored region of the WA Goldfields as we progress our work programs."
The survey location is 25km east of Norseman in the Eastern Goldfields, WA. The area has historically onlybeen largely unexplored, but recently is becoming a focus for numerous companies after the discovery of nickel, lithium and platinum group elements (PGE) in the region. The Eyre Project covers 692km2 and
straddles the Eyre Highway and a major geological feature, the Jimberlana Dyke, as shown in Figure 1.
The Jimberlana Dyke is a large mafic intrusive body that is up to 2.5km in width and has been referred to
as analogous to the Great Dyke in Rhodesia by Western Mining Corporation who explored the area in the | |
1960s and early 1970s and again from 1985 to the late 1980s. Newmont also explored the Mt Norcott area | |
and confirmed the concentration of Ni-Cu-PGE sulphides at the top of a norite rock unit within the Dyke. | |
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For | Figure 1 Eyre location map and soil geochemistry survey location |
The aim of the soil program was to confirm historic results undertaken when field survey control was not as simple and rigorous as modern methods. Results from Larvotto's survey have confirmed a strong Ni anomaly, but also highlighted the previous work was miss-plotted by several hundred metres. The Larvotto anomaly has extended previous work and it is now over 2.5km long, remaining open to the east and west. The contoured geochemistry results from the survey are shown for nickel (Figure 2) and copper (Figure 3). The nickel contours are shown overlying regional airborne magnetics that clearly highlight the east -
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west nature of the Jimberlana Dyke. Being younger than the surrounding rocks, the dyke cuts through regional geology. The copper geochemical contours are shown over the regional geology which shows the association with norite rock units.
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Figure 2 Nickel geochemical contours over airborne magnetics
Figure 3 Copper geochemical contours shown over regional geology
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Field mapping confirmed the anomaly is associated with a norite and noritegabbro contact located centrally within the Jimberlana Dyke. Significantly, norite occurs with gabbro and other mafic to ultramafic rocks in layered intrusions which are often associated with platinum orebodies, such as in the Bushveld Igneous Complex in South Africa
onlyThe peak nickel soil values, which are 10 times the background levels are also associated with a subtle magnetic low within the dyke, evident in Figure 2.
Geochemical survey
The geochemistry program collected near surface soil samples. Average sample collection depth was use15cm. Samples were sieved to minus 1.6mm and compressed into pucks for analysis by SciAps Portable
Xray fluorescence (pXRF). Standards, blanks and repeat samples were included for quality control.
Sample spacing was on north - south orientated lines, nominally 240m apart with sample points every 40m along the lines. Some lines were not sampled where obvious transported soils associated with creeks or flood areas were evident. Field work was supervised by members of the Ngadju Native Title Aboriginal
Corporation, who are the local custodians of the land on which the survey was undertaken (Figure 4). personalLarvotto appreciates their assistance with undertaking the survey.
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Figure 4: NNTAC staff with LRV MD Mr Ron Heeks, geochemical sampling near pegmatite outcrop
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Larvotto is currently expanding the area of the survey with a larger geochemistry program to determine the lateral extent of the anomaly and test other areas within and adjacent to the Jimberlana Dyke. In the vicinity of the current anomaly, an electromagnetic (EM) geophysical survey will be undertaken to test below the anomaly for sulphide mineralisation.
Concurrent to this survey, a lithium geochemistry survey was undertaken over the Merivale prospect. Due onlyto long delays in laboratory analysis, results are still pending.
Released on the authority of the Managing Director & CEO, Ron Heeks.
Competent Persons Statement
useThe information in this presentation that relates to exploration results is based on information compiled by Mr Ron Heeks, who is a Member of the Australasian Institute of Mining and Metallurgy and who is Managing Director of Larvotto Resources Limited. Mr Heeks has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration, and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code
for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mr Heeks consents to the personalinclusion in the release of the matters based on his information in the form and context in which it appears.
The Company is not aware of any new information or data that materially affects the information included in this presentation. All material assumptions and technical parameters underpinning the estimates in the Announcements referred to continue to apply and have not materially changed.
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