San Domingo Update

RNS Number : 1709V

Bradda Head Lithium Ltd

08 August 2022

 

08 August 2022

Bradda Head Lithium Ltd

("Bradda Head", "BHL", "Bradda", or the "Company")

 190% increase in Mapped Area of Pegmatites and 75% Increase in Claims Staked at Bradda Head's San Domingo Property

Bradda Head Lithium Ltd (AIM:BHL, OTCQB:BHLIF), the North America-focused lithium development group, is pleased to release initial results from its recent 3D remote mapping exercise. The exercise was undertaken by SRK Consulting (UK) Limited ("SRK"), the highly regarded independent geological consultants, at the Company's San Domingo lithium pegmatite project in Arizona. Bradda Head have increased their landholding by adding approximately 75% or 10km² of claims and leases around San Domingo, a historic lithium mining district in Arizona.

Highlights :

· SRK's 3D remote mapping programme using high-resolution aerial imagery has identified a 190% increase in the area of likely pegmatite outcrops, originally covering 75 acres and now covering 220 acres identified on Bradda's San Domingo claims in its historic lithium mining district in Arizona. Field verification of SRK's remote mapping is required to confirm the presence of pegmatites and to characterise their mineralogy and lithium hosting potential.

· Numerous new pegmatites have been identified in all San Domingo claim blocks, with 1,490 inferred outcrops occurring within BHL's existing claim areas. Individual pegmatites with thicknesses over 1 m have been mapped; whilst the majority may be small and discontinuous, some appear to be more substantial presenting priority targets for follow up work.

· The presence of increased numbers of pegmatite outcrops is significant, given that lithium in spodumene has been found at some pegmatites in our claim blocks at San Domingo. Grab sample grades of up to 8% Li₂O have been found demonstrating the presence of spodumene.

· Sub-surface orientations of some pegmatites are discernible from 3D outcrop geometries and Bradda now has a greater understanding and definition of pegmatite surface boundaries and the likely extent of the pegmatite field, aiding our current drill programme focus (rig mobilised in July see press release dated 18^th July) and future programmes. The results can be seen on the Company's website at https://www.braddaheadltd.com/media/image-library/.

· Bradda Head has also added approximately 10km² of claims and leases adjacent to San Domingo following the positive results from the mapping project and exploration work to date at San Domingo. This now takes the San Domingo Project landholding to c.23km² (see map of total claim package https://www.braddaheadltd.com/media/image-library/))

· Bradda's geological team anticipate that the Company's pegmatite district may have larger structures at depth, based on all work undertaken to date including; surface sampling, channel sampling, geophysics, remote sensing and 3D modelling by Bradda and SRK geologists.

· Multiple pegmatite clusters that together occupy a northeast-trending zone have been identified. The inferred contacts of Cretaceous Granite and Tertiary volcanic rock units have been better defined using regional mapping and aerial imagery. These units appear to limit the extent of pegmatites, which are hosted by Proterozoic rocks. (see map at  https://www.braddaheadltd.com/media/image-library/)

· Historically mapped Li-bearing zones at the North Morning Star and Midnight Owl prospects have been located in 3D and used to inform modelling and corroborate mapping.

· A follow-up field observation, soil sampling, and channel sampling programme is now underway across the full 23km² San Domingo Project landholding.

Charles FitzRoy, CEO of Bradda Head, commented:  

"We are delighted to be working with SRK on our San Domingo Li in Pegmatite Project. The 3D mapping project undertaken at San Domingo, has helped in the design our drill programme and the greater understanding of our pegmatites extent at surface and depth.

" Our San Domingo pegmatite district is extensive, having been historically mined for lithium in spodumene in the 1940s and 1950s, within our permitted license area. Historical records show that the average reported grade of the Spodumene mined during this period was 740t at 2.75% Li₂0! Our claims now cover c.23kms². The additional 10km² of claims and leases strengthens Bradda's position in the district dramatically. The recent mapping programme was vital in helping us understand where to add additional claims at San Domingo.

"Further surface fieldwork has added to our knowledge and strengthened our theory of the geological structures at depth at our San Domingo claims. This 3D mapping project combined with all fieldwork to date at San Domingo has helped in drillhole targeting and orientation, the planned drill programme will enable us to glean the potential size of deposit more accurately at San Domingo if drilling proves positive.

 "As most people are aware Arizona is known as the Copper State in the USA so it no surprise to note that our claim area also contains historical gold, silver, copper, and vanadium mining operations which naturally are of interest to us."

Details

Following on from SRK's remote mapping and Bradda's geological fieldwork, the Company decided to increase the number of exploration holes it will drill at its two San Domingo lithium pegmatite claims in Central Arizona. At Central San Domingo 10 holes will be drilled (recently increased from 6 due to further mapping) and at Northern San Domingo a 20 hole programme was added, thereby bringing the programme to approximately 7,000 meters in total. The decision was made following 3D remote mapping of the Company's whole San Domingo claims. Both drilling programmes are designed to test the mineralogy of Bradda Head's pegmatite district and the geometry of pegmatites at depth, and to test the thesis held by the Company's geological team that Bradda Head's pegmatite district has larger structures at depth, similar to other zoned pegmatite systems like Liontown Resources' Kathleen Valley project in Australia.

An extensive soil sampling and channel sampling programme is underway across the whole 23km² claim area, which will help with future drill hole targeting.

Other mineralisation types exist at Bradda's historic pegmatite mining district, including previous copper, gold, silver, and vanadium mines. Bradda is focussing on the lithium prospects currently, but plans to fully evaluate these other minerals once this first phase of drilling is complete.

Previous surface sampling at named outcropping pegmatites in the San Domingo claim blocks returned individual sample grade highlights of:

o  Midnight Owl: 1.44% Li₂O

o  Joker: 0.35% Li₂O

o  White Ridge: 2.49% Li₂O

o  Lower Jumbo: 1.62% Li₂O

o  Sunrise: 0.67% Li₂O

o  North Morning Star: 0.92% Li₂O

For further information please visit the Company's website: www.braddaheadltd.com

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) No. 596/2014, as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

Contact:

Bradda Head Lithium Limited	[phone]
Charlie FitzRoy, CEO Denham Eke, Finance Director
Beaumont Cornish (Nomad) James Biddle/Roland Cornish	[phone]
Peterhouse (Joint Broker)	[phone]
Charles Goodfellow Duncan Vasey Lucy Williams
Shard Capital (Joint Broker)	[phone]
Damon Heath Isabella Pierre
Red Cloud (North American Broker)	[phone]
Joe Fars
Tavistock (PR)	+ 44 20 7920 3150
Nick Elwes Adam Baynes	[e-mail]

Qualified Person BHL

The information in this announcement has been reviewed by Jim Guilinger, COO Bradda Head Lithium. Mr. Guilinger is a graduate of the University of Colorado - Boulder with a BA in Geology with more than 40 years' experience in mineral exploration and mining geology and is a qualified person under the AIM Rules. Mr. Guilinger consents to the inclusion of the technical information in this release and context in which they appear. 

Notes to Editors

Bradda Head Lithium Ltd. is a North America-focused lithium development group. The Company currently has interests in a variety of projects, the most advanced of which are in Central and Western Arizona: The Basin Project (Basin East Project, and the Basin West Project) and the Wikieup Project.

The Basin East Project has an Indicated Mineral Resource of 17.6Mt at an average grade of 912ppm Li and 3.4%K for a total of 86kt LCE and an Inferred Mineral Resource of 57.6Mt at an average grade of 717ppm Li and 3.3%K for a total of 220kt LCE. In the rest of the Basin Project SRK has estimated an Exploration Target of between 300 and 1,300Mt of material grading between 600 and 850ppm Li which is equivalent to a range of between 1 and 6Mt LCE.

The Group intends to continue to develop its three phase one projects in Arizona, whilst endeavouring to unlock value at its other prospective pegmatite and brine assets in Arizona, Nevada, and Pennsylvania.

All of Bradda Head's licences are held on a 100% equity basis and are in close proximity to the required infrastructure.

Bradda Head is quoted on the AIM of the London Stock Exchange with the ticker of BHL and on the US OTCQB market with a ticker of BHLIF.

 

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