Dateline Resources Ltd (ASX: DTR) shares are catching the eye and having a very strong session on Wednesday.
At the time of writing, the ASX rare earths stock is up an impressive 13% to 41.7 cents.
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Why is this ASX rare earths stock rocketing today?
Investors have been scrambling to buy the ASX rare earths stock after the company announced a major expansion of its Music Valley Heavy Rare Earth Project in California.
According to the release, Dateline has significantly increased the size of the project after staking 969 additional claims covering 19,380 acres.
Management notes that following this expansion, the Music Valley project now spans 1,026 claims across 20,520 acres, giving the company a district-scale land position in the region.
Importantly, the enlarged project area includes nearly 9 kilometres of the prospective Pinto Gneiss geological unit, which has historically been identified as hosting heavy rare earth mineralisation.
Heavy rare earths were first documented in the area by US Geological Survey (USGS) geologists in the 1950s, and Dateline now controls a significant portion of this prospective terrain.
Exploration already underway
The ASX rare earths stock advised that exploration activities are already progressing across the expanded project.
The company revealed that a project-wide airborne magnetics and radiometric survey is currently underway and approximately 65% complete.
In addition, its rare earth specialists have commenced geological mapping and surface rock sampling across the project area.
Management said these activities are expected to help generate and prioritise drilling targets across the consolidated land package.
Commenting on the big news, the ASX rare earths stock's managing director, Stephen Baghdadi, said:
Music Valley provides Dateline with district-scale exposure to a geological unit where heavy rare earth mineralisation was first documented by USGS geologists more than seventy years ago.
Our approach is to build on that historical work using modern exploration techniques. Airborne geophysics, detailed mapping and systematic sampling are already underway, allowing us to quickly generate and prioritise drill targets across the consolidated land position.
Today's gain means the Dateline Resources share price has extended its outperformance of the benchmark ASX 200 index in 2026.
The ASX rare earths stock is now up an incredible 80% since the start of the year. This compares favourably to a small gain by the ASX 200 index so far this year.
