Dalaroo Metals Maps Blueprint for Rare Earth Targets as Greenland Assays Pending

Blue Lagoon mapping reveals structural blueprint for REE mineralisation

Dalaroo Metals (ASX: DAL) has completed 354 structural measurements across its 100%-owned Blue Lagoon Rare Earth Project in southern Greenland, defining the principal structural architecture controlling intrusive emplacement, hydrothermal alteration, and sediment transport pathways. The results represent a geological mapping and structural observations update only — no assay results are reported in this announcement.

The timing carries strategic weight. A new US–Denmark–Greenland agreement has placed Greenland’s rare earth resources at the centre of Western supply-chain security discussions, providing a meaningful macro backdrop for companies actively exploring in the region.

CEO John Morgan

“The collection of 354 structural measurements has allowed us to move beyond simply identifying prospective rocks and begin defining the structural architecture that may have controlled the emplacement of REE-bearing pegmatites, felsic intrusions and hydrothermal fluids.”

What the 2026 mapping program revealed

The 2026 geological mapping program delivered a series of findings that significantly advance the company’s understanding of the controls on rare earth element (REE) mineralisation at Blue Lagoon:

1. Dual fault architecture: A dominant fault set broadly aligned with the elliptical Blue Lagoon intrusive complex was identified, accompanied by a conjugate fault set forming a pervasive structural network across the project area.
2. Weathered Larvikite core: The heavily weathered Larvikite unit of the Kitsigsut Syenite Group is interpreted as the weathered core of the intrusive complex, controlling topographic lows and sediment accumulation pathways — a key component of the company’s source-to-sink exploration model.
3. Fenitised quartz veins as priority targets: Quartz veins exceeding 0.5 m in thickness occur within intensely fenitised zones and have been identified as priority areas for integration with pending assay results.
4. Pegmatite and aplite corridors: NW–SE and NE–SW amazonite-bearing pegmatites mapped along western mountain ridges, and extensive E–W aplite sills mapped across the lower flanks of the Nunarssuit Syenite, have been identified across the project. The structural orientations of these features show similarities to the nearby Amaroq Minerals Ilua REE pegmatite discovery in southern Greenland.
5. Widespread fenitisation: The combination of fenitisation, alkaline intrusive rocks, aplites, pegmatites, and quartz veins demonstrates the presence of a large and chemically evolved intrusive-hydrothermal system, with fenitisation indicating that hydrothermal activity extended beyond the immediate margins of the intrusive bodies.
6. Expanded regional model: Four additional prospective areas — Qilluakitsoq, Quernertullip, Taseq, and Blue Lagoon South — have been incorporated into the broader exploration model.

More than 200 samples (geological, rock-chip, stream-sediment, and surface-sediment samples) are currently in laboratory analysis for multi-element geochemistry, with selected samples also undergoing mineralogical and preliminary metallurgical test work.

Exploration Manager – Greenland and Western Australia Trystan Hughes

“The widespread fenitisation and late-stage felsic activity identified during mapping demonstrate the scale of the hydrothermal and intrusive system and provide multiple vectors towards potentially more fertile parts of the system.”

Why southern Greenland’s rare earth credentials matter for investors

Fenitisation refers to a process where alkaline hydrothermal fluids alter the surrounding country rock adjacent to alkaline intrusions. It is widely regarded as a pathfinder indicator for REE-enriched systems, signalling that chemically evolved, mineral-carrying fluids have been active across a broad area.

The source-to-sink model underpinning the Blue Lagoon exploration strategy describes how REE-bearing material weathers from elevated intrusive source rocks, is transported via structurally controlled drainage pathways, and accumulates in lower-lying sedimentary basins — in this case, the Blue Lagoon basin itself. The structural mapping has strengthened the geological evidence for this pathway.

The 50-metre sediment corridors confirmed at Blue Lagoon provide physical evidence of the accumulation basins central to the source-to-sink model, with bathymetric data indicating that structurally controlled drainage has been concentrating REE-bearing material into discrete depocentres over geological time.

Dalaroo is not operating in isolation. Southern Greenland hosts a cluster of serious rare earth projects, as summarised below.

References to the Ilua and Tanbreez projects are sourced from public disclosures by Amaroq Minerals Ltd and Critical Metals Corp respectively. Dalaroo Metals has not independently verified that information, and exploration activity on neighbouring properties is not necessarily indicative of the mineralisation or exploration potential of the Blue Lagoon Rare Earth Project.

What comes next — catalysts to watch

The structural framework is now in place, and the integration of that data with incoming geochemistry is the next value-creating step. Upcoming catalysts disclosed in the announcement include:

• Interpretation of GPR and bathymetric datasets
• Integrated geological model and target generation
• Laboratory assays from rock, stream-sediment, and surface samples
• Laboratory assays from lagoon and offshore sediment samples
• Mineralogical confirmation of interpreted REE-bearing minerals
• Preliminary metallurgical test work
• Follow-up exploration planning

With the structural architecture defined, incoming assay results can now be assessed against the geological framework. That means Dalaroo can prioritise targets where prospective source rocks, structural pathways, alteration zones, and geochemical anomalies coincide — a more systematic approach than chasing isolated anomalies in the field.

Dalaroo’s offshore critical minerals expansion extends the Blue Lagoon exploration footprint into the marine sediment domain, where the same structurally controlled drainage pathways identified during the 2026 mapping program may have deposited REE-bearing material beyond the shoreline.

Ready to Learn More About the Blue Lagoon Rare Earth Project?

With 354 structural measurements defining the geological architecture controlling REE mineralisation, Dalaroo Metals is building a systematic framework to identify high-priority targets at its 100%-owned Blue Lagoon Project in southern Greenland. Pending assay results from more than 200 samples are set to be interpreted against this structural blueprint, making the coming months a key period to watch.

Stay across every development by exploring the full Blue Lagoon project profile on Discovery Alert, where upcoming catalysts — including laboratory assays, mineralogical confirmation, and integrated target generation — will be covered as they emerge.