- Dateline Resources (OTCQB:DTREF) completes significant magnetotelluric survey at Colosseum Gold-REE Project.
- Survey reveals geophysical features similar to Mountain Pass rare earth deposit, highlighting exploration potential.
- Initial geochemical assays confirm anomalous concentrations of rare earth elements, with full results expected by July 2025.
Dateline Resources (OTCQB:DTREF) announced the successful completion of a magnetotelluric (MT) geophysical survey at its fully-owned Colosseum Gold-REE Project in East San Bernardino County, California. Finalized on June 29, 2025, the survey used 167 stations across a 200-meter grid to reveal geophysical signatures akin to the world-class Mountain Pass rare earth element deposit, located 10 km south.
A high-resistivity anomaly was detected on Line 2200N, aligning with REE-bearing fenite and trachyte dykes, which are indicative of potential carbonatite-related REE mineralization. The project's geophysical profile mirrors the Mountain Pass deposit, featuring a relative gravity high, a relative magnetic low, and moderate resistivity (70-120 Ω·m).
In conjunction with the geophysical survey, Dateline's geochemical sampling program is 75% complete. As of June 30, 2025, 916 out of approximately 1,200 samples have been collected with a 60-meter spacing across the claim block. Initial assays processed by ALS Global Laboratories have confirmed anomalous REE concentrations, including cerium, lanthanum, and yttrium, further boosting the project's potential. The complete results from the sampling program are anticipated by mid-July 2025.
Moving forward, Dateline plans to integrate survey data and historical findings to refine exploration models, engage in 3D MT inversion modeling, and prioritize drill targets exhibiting Mountain Pass-like signatures for both REE and gold prospects.
