Arcadia Minerals

Geophysical Interpretation Defines Drill Targets For Lithium Brines

Arcadia Minerals Ltd (ASX:AM7, FRA:8OH) (Arcadia or the Company), the diversified exploration company targeting a suite of projects aimed at Tantalum, Lithium, Nickel, Copper and Gold in Namibia, is pleased to announce a geophysical interpretation conducted by the Company’s geologists of the recently completed helicopter borne Electro-Magnetic Survey3.


HIGHLIGHTS

 
  • Interpretation affirms structural concurrence between highly anomalous electro-magnetic zones and mineralised lithium clay pans
  • Three stratigraphic boreholes planned by March 2023 to aid exploration. Potential to discover economically mineralised brines not excluded
  • Three potentially Lithium-rich brine sub basins identified at Bitterwasser, of which two are associated with the existing Mineral Resource at the Eden Pan and mineralisation at the Madube Pan1,2
  • Largest Electromagnetic (EM) anomaly (42km by 9km) is perfectly associated with a major fault structure
  • Smaller anomalies are associated with the Eden Basin (8km by 2.5km) and the Madube Basin (5km by 1.5km), both associated with oblique trending tension faults/fractures at depths of around 120 m and high lithium content in the clay pans at surface
  • The depth of the large basin based on EM interpretation is up to 200m to the basalt basement with high conductivity from 30m below surface, which is the observed depth of the water table
  • Historical water boreholes drilled outside the edges of the main anomaly hold elevated TDS values of >6000 mg/l
 

Jurie Wessels, the Chairman of Arcadia stated: “The interpretation affirmed our geological model and hypothesis that the Bitterwasser Basin area conforms to the structural requisites of possibly becoming a globally significant Lithium province. From the data it is evident that several entrapment sites were formed through tectonic activity where highly conductive brine fluids could be accumulated. In addition, there is a distinct concurrence between structures observed from EM data and the formation of mineralised lithium clay pans. This further enhances the likelihood of the pans, where mineralisation tends to increase to depth, having been mineralised through lithium rich brine water-table fluctuation. By comparing water quality of holes drilled outside of the anomalous areas from publicly available data to the levels of electro- conductivity within EM anomalous zones we expect highly concentrated dissolved solids of salts (brines) to be encountered within the anomalous zones.

Our focus is now to drill three stratigraphic holes to verify the geophysical results, to increase our geological understanding of the Bitterwasser basin and to obtain valuable information regarding the sediments associated within the basin. This will be necessary before we embark on a targeted brine-borehole drilling programme. Although not the objective, it is not excluded that stratigraphic drilling could lead to the discovery of a significant brine deposit at Bitterwasser.”

GEOPHYSICAL INTERPRETATION

 

Interpretation of government Magnetic data purchased from the Ministry of Mines and Energy of Namibia indicates the presence of three major north-south trending faults that are considered responsible for the formation of the Bitterwasser half graben structure. Various en-echelon faults (i.e. faults, or tension fractures, that are oblique to major structural trends) are associated with the large north-south trending fault structures (see Figure 1 right-hand image). The north-east southwest trending fault in the southern portion of the magnetic image is considered to have caused an up-lift of the basement basalt. As a result, the barrier for the creation of the Bitterwasser basin was formed thereby creating a closed basin and trapping water flow from the north and acting like a dam wall (indicated by the red striped polygon on the right-hand image).

Figure 1 – Maps showing the Magnetic Survey data with and without interpretation, the red striped polygon on the southern portion of the area shows the basement high.

Figure 2 – EM survey Results showing three anomalous bodies (represented by pinkish colour)

The interpretation of both the Magnetic and Electro-Magnetic data (as represented in figure 3 below) indicates a well-defined correlation between the anomalies (derived from the Electro-Magnetic data and shown in figure 2) and structural features (derived from the Magnetic data and shown in figure 1). The largest EM anomaly (42km by 9km) is associated with a major north-northwest trending fault structure and the most southern, north-east southwest trending “dam wall” fault. The two smaller anomalies, which are concordant with the Eden Basin (8km by 2.5km) and the Madube Basin (5km by 1.5km) are associated with en echelon faults associated with the two large parallel north-northwest trending fault structures. The formation of the three basins identified so far is thus considered to have been structurally controlled.


Click here for the full ASX Release

This article includes content from Arcadia Minerals, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

AM7:AU
The Conversation (0)
Arcadia Minerals

Drilling Completed At Karibib Copper-Gold Project

Arcadia Minerals Ltd (ASX:AM7, FRA:8OH) (Arcadia or the Company), the diversified exploration company targeting a suite of projects aimed at Tantalum, Lithium, Nickel, Copper and Gold in Namibia, is pleased to announce that its drilling contractor Hammerstein Mining and Drilling completed a 551m RC drilling program for 10 drill holes at the Karibib Copper- Gold Project in Namibia.
Keep reading...Show less
Arcadia Minerals

Drilling Commenced At Karibib Copper-Gold Project

Arcadia Minerals Ltd (ASX:AM7, FRA:8OH) (Arcadia or the Company), the diversified exploration company targeting a suite of projects aimed at Tantalum, Lithium, Nickel, Copper and Gold in Namibia, is pleased to announce that it instructed Hammerstein Mining and Drilling to execute a 526m RC drilling program for 9 drill holes at the Karibib Copper-Gold Project in Namibia.
Keep reading...Show less
Arcadia Minerals

Quarterly Activities Report – June Quarter 2022

Arcadia Minerals Limited (ASX:AM7, FRA:8OH) (Arcadia, AM7 or the Company), the diversified exploration company targeting a suite of battery metal projects aimed at Lithium, Tantalum, Nickel, Copper and Gold in Namibia, is pleased to provide its quarterly activities report for the period ending June 2022.

Keep reading...Show less
Kum-Kum Nickel Project Mineral Systems Approach Results

Kum-Kum Nickel Project Mineral Systems Approach Results

Arcadia Minerals Ltd (ASX:AM7, FRA:8OH) (Arcadia or the Company), the diversified exploration company targeting a suite of projects aimed at Tantalum, Lithium, Nickel, Copper and Gold in Namibia, is pleased to announce that the Department of Earth Sciences at the University of Stellenbosch concluded a Minerals Systems Approach investigation over the Kum-Kum Ni-Cu-PGE Project Licenses and delivered a report to the Company styled “Geological overview and sulphide mineralization potential of the Tantalite Valley Complex” by Drs. Martin Klausen and Bjorn von der Heyden & Mr Daniel Ferreira, Department of Earth Sciences, Stellenbosch University, May 2022, and this report will be made available on the Company’s website at www.arcardiaminerals.global.

Keep reading...Show less
Magnifying glass focusing on the Albemarle website logo.

Albemarle's Commitment to Sustainability Shines in New Report

As global demand for critical minerals intensifies, Albemarle (NYSE:ALB) continues to position itself as a global leader not only in lithium production but also in sustainable practices.

In its newly released 2024 sustainability report, titled “Values-Led, Purpose-Driven,” the company underscores its commitment to reducing its environmental footprint across six continents, supporting global supply chains and promoting human rights across operations.

From cutting freshwater intensity at its Chilean operations by 28 percent to procuring 24 percent of its electricity from renewable sources, Albemarle is striving to grow its energy storage business while keeping carbon emissions flat, as it translates ESG goals into action.

Keep reading...Show less
Salt flats with text overlay: '5 Top Australian Mining Stocks This Week'

Top 5 Australian Mining Stocks This Week: Argosy Climbs 89 Percent on Rincon Lithium Spot Contract

Welcome to the Investing News Network's weekly round-up of Australia’s top-performing mining stocks on the ASX, starting with news in Australia's resource sector.

This week's top performing stocks includes firms focused on a wide variety of metals, including lithium, rutile and manganese. Lithium stocks, including top gainer Argosy Minerals (ASX:AGY), picked up momentum this week as prices moved upwards for a second straight week.

Companies focused on magnetite and rare earths were also among the week's top performers, including Freehill Mining (ASX:FHS), which saw its shares surge following insider buying from key executives including Chairman Benjamin Jarvis.

Keep reading...Show less
Metallic battery with a world map etched on it, against a dark background.

3 Key Themes from Fastmarkets' 2025 Lithium Supply & Battery Raw Materials Event

Market volatility, Chinese control, supply chain risk mitigation and financing emerged as some of the most prevalent themes at the 2025 Fastmarket’s Lithium Supply Battery Raw Materials (LBRM) conference in Las Vegas.

The event, which is in its 17th year, drew a crowd of roughly 1000 delegates, industry experts and analysts, to discuss the current landscape and future projections of the battery materials sector.

During his opening remarks, Fastmarkets CEO Raju Daswani highlighted the growth and maturation the battery raw materials sector has experienced.

Keep reading...Show less
Metals Australia (ASX:MLS)

Metals Australia


Keep reading...Show less
Futuristic skyline with electric car chargers and glowing cityscape at sunset.

Expert: African Lithium Key to China's Battery Supply Chain Dominance

With the global shift to electric vehicles (EVs) accelerating, China is cementing its dominance over the lithium supply chain by pouring investment into African mines, creating a new center of gravity for the battery metal.

Speaking at the Lithium Supply Battery Raw Materials conference, Claudia Cook senior analyst at Fastmarkets offered a sweeping assessment of how China is reshaping global lithium flows and why Africa will be crucial in the next decade.

Cook laid out in detail how China’s lithium strategy is evolving. As the world’s largest EV market, China needs a consistent, low-cost supply of lithium — but its domestic production is increasingly insufficient.

Keep reading...Show less

Latest Press Releases

Related News

×