Anson Resources Limited (ASX:ASN) has announced that it has added an additional 100 strategic claims to its Green River Lithium Project in southeastern Utah, through its 100% owned Subsidiary, Blackstone Minerals NV LLC. These claims add 8.23km2 to the overall project footprint, bringing it to 88.61km2 total, which will be taken into consideration in future JORC Resource estimates.
The new claims contain two oil wells that previously recorded supersaturated, near-surface brines and these are considered possible re-entry targets to increase the resource estimate. The Grand Fault Unit 14-24 well recorded brine flowed up the tubing from the Mississippian Units from a depth of 9.705ft, demonstrating high pressure. The Green River area did not have historical lithium assay recorded until Anson’s recent drilling programme where supersaturated brine was intercepted during oil and gas drilling. Refer to the ASX Announcement from 15 May 2025 for more information.
Drill Stem Tests have been conducted at both the Grand Fault well and the Green River Unit 1 well, in addition to other historic oil and gas wells in the Project region, and indicate that the Mississippian strata have a high permeability across a large area. This indicated that the flow rates needed to support a lithium plant may be achieved, and they also indicate that the pressure needed can remain constant over the life of the lithium project.
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