Origen Finds Lithium-Rich Clays at Los Sapitos
Vancouver, British Columbia--(Newsfile Corp. - July 24, 2023) - Origen Resources Inc. (CSE: ORGN) (FSE: 4VXA) (the "Company" or "Origen") is pleased to announce an update to its ongoing exploration on its
Highlights:
- Sampling confirms lithium prospectivity
- District-sized land position covering entire salar and potential basin extensions
- Geophysics to begin shortly to identify drilling targets
Preliminary results from the ongoing sampling at Los Sapitos are encouraging.A series of silt samples collected from the Los Sapitos salar were treated with both an acid and a purified water wash. The results show that significant lithium is found both in clays and in evaporite mineralization on the eastern margin of the basin with results of up to 824 mg/L found in the most eastern samples collected to date.
Map: the location of the samples collected during the most recent sampling program at the Los Sapitos salar. Values shown represent lithium derived from an 'Acid Leach' completed on the silt samples.
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These results are evidence that lithium extends over the entire basin fed from a single aquifer at depth. The basin is elevated at this location and sampling teams were unable to get to the water table.
Brine samples collected from the western part of the basin returned the most anomalous results from a small depression in the west of the salar. Close to those found during previous sampling programs. The amount of lithium in the brine at this location may be a function of sampling teams being able to tap deeper into the water table.
Basin morphology is now thought to be governed by a regional thrust faulting that runs through the property forming a significant depression and catchment for lithium bearing fluids.
Schematic 1: How did the Lithium get to Los Sapitos? Brines in the northern part of the Lithium trend have obvious visible surface expressions. Los Sapitos is a mostly-buried salar.
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Sampling to the south west returned both clay and brines returned lithium, further evidence that a separate basin exists at lower elevations in the Los Sapitos area.
Methodology
Sampling was conducted by staff experienced in lithium salar exploration and followed industry recognized best practices for early-stage exploration of this type of target. Samples were secured onsite and transported to the lab by Origen personnel.
Analysis of brine samples was conducted by Alex Stewart International Argentina S.A. (Alex Stewart), an internationally recognized laboratory with substantial experience in geochemical analysis. Lithium analysis was conducted using a 32 element ICP - OES package (Alex Stewart lab code LMMT01). Alex Stewart is independent of the Company.
Sediment samples were analysed by the Instituto de Investigaciones Mineras at the Universidad Nacional de San Juan. Sediment samples were subjected to a weak extraction with hot water which was then analysed by ICP-OES for Li, Na, K, Ca, Mg and B to determine the proportion of these elements that was easily extractable. The residual sediment was then leached by strong acid and analysed by ICP-OES for Li, Na, K, Ca, Mg and B to determine the proportion of these elements more strongly bound to minerals or part of the crystal structure of the minerals.
Origen's Lithium Experience
The Origen team has been exploring for Lithium since 2002, making major discoveries of both spodumene, and lithium in brines. The recent market-driven phase of lithium discoveries have represented those with the highest grades and most obvious surface expressions. As the lithium technology matures and the demand for lithium grows, exploration will be driven to those places where lithium has not been historically seen. Origen has been applying the experience gained through discovery to create advanced exploration models with the aim of making original green-fields discoveries.
Origen began exploration for lithium brines in Argentina with the thesis that the lithium found in the "Lithium Triangle" - an area located on borders of Chile, Argentina and Bolivia that is estimated to host
This approach has allowed for the discovery of Maricungas and Tres Quebradas far to the south of the Lithium triangle. Tres Quebradas was sold in 2020 for
Map 1 showing the emerging trend of Lithium discoveries away from the Lithium Triangle, an area that hosts an estimated
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331 km2 
Map 2 showing the location of the 331 km2 Los Sapitos property located along the trend of Lithium discoveries.
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Origen previously recognized that the geology of the mining-friendly northern San Juan Province was similar to that of within the lithium belts in the north of the country. Guided by this exploration model Origen was able to acquire a district-sized contiguous land package around a mostly-buried salar. Preliminary exploration in 2021 was met with immediate success: surprisingly high grades of lithium in brines at surface in the main salar area of Los Sapitos, with one sample returning 391 mc/l. This discovery was a vindication of the exploration model.
Origen believes that the style of mineralization transitions from the mature salars of the lithium triangle with an obvious visible surface expression to a mostly-buried, sediment-rich aquifer similar to those found in the Clayton Valley, Thacker Pass and elsewhere.
Origen has since expanded its land holdings with a total of 331 km2 staked over several prospective basins in northern San Juan Province.
About Origen
Origen is fully focused on its
John Harrop, P.Geo., a Qualified Person as that term is defined in NI 43-101 has prepared, supervised the preparation or approved the scientific and technical disclosure in the news release.
On behalf of Origen,
Thomas Hawkins
Managing Director
For further information, please contact Gary Schellenberg, Chief Executive Officer, at 604-681-0221.
Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this press release.
Certain of the statements made and information contained herein may constitute "forward-looking information." In particular references to the private placement and future work programs or expectations on the quality or results of such work programs are subject to risks associated with operations on the property, exploration activity generally, equipment limitations and availability, as well as other risks that we may not be currently aware of. Accordingly, readers are advised not to place undue reliance on forward-looking information. Except as required under applicable securities legislation, the Company undertakes no obligation to publicly update or revise forward-looking information, whether as a result of new information, future events or otherwise.
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