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Colosseum Geophysics Points to Large Intact Carbonatite Targets
SAN BERNARDINO, CALIFORNIA / ACCESS Newswire / February 25, 2026 /Dateline Resources Limited (ASX:DTR)(OTCQB:DTREF)(FSE:YE1) (Dateline or the Company) is pleased to report on the interpretation of the Company's high-resolution geophysical datasets ...
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[{"type":"text","content":"SAN BERNARDINO, CALIFORNIA / ACCESS Newswire / February 25, 2026 / Dateline Resources Limited (ASX:DTR)(OTCQB:DTREF)(FSE:YE1) (Dateline or the Company) is pleased to report on the interpretation of the Company's high-resolution geophysical datasets collected across the Colosseum Project. Gravity, high-resolution airborne magnetics and radiometrics, induced polarization (IP) and magneto-tellurics (MT) were interpreted with geological mapping and surface geochemistry data to identify carbonatite rare earth targets. Three distinct targets demonstrate coincident anomalies that would be expected from a carbonatite source. Two of the targets are defined sufficiently for a diamond drill program.","length":701,"tagName":"p"},{"type":"text","content":"In addition, drilling in late 2025 (RC25-038) delivered the first drill-based confirmation of mantle-derived anomalous rare earth elements (REE) at the project. This drill hole was completed before the new infill geophysics surveys, with the hole interpreted to have intersected the margin of Target 1. Assaying shows a geochemical fingerprint that points clearly to a mantle-sourced carbonatite system.","length":403,"tagName":"p"},{"type":"text","content":"Highlights","length":10,"tagName":"p"},{"type":"list","items":[{"val":[{"type":"text","content":"Converged Geophysical and Geological Datasets: Multiple high-resolution datasets have been collected, processed and interpreted together for the first time, providing a comprehensive view of the project.","length":203,"tagName":"p"}]},{"val":[{"type":"text","content":"Rare Earth Elements (REE) halo intersected in drilling: Drillhole RC25-038, on the margin of Target 1, intersected anomalous rare earth elements, representing the first drill-based confirmation of sub surface REE at the project.","length":228,"tagName":"p"}]},{"val":[{"type":"text","content":"Mantle-Derived REE System Confirmed: The REE signature in RC25-038 is mantle-derived and is directly comparable to the Mountain Pass carbonatite system.","length":152,"tagName":"p"}]},{"val":[{"type":"text","content":"Carbonatite-Style Geochemical Signature Identified: RC25-038 returned elevated Ba, Sr, Ca, P, Th and U with associated potassic alteration, confirming proximity to an alkaline-carbonatite source.","length":195,"tagName":"p"}]},{"val":[{"type":"text","content":"Carbonatite Dia...