A 2024 study using Germany’s EnMAP satellite mapped neodymium at the Mountain Pass rare-earth mining district in California at 30-meter pixel resolution. Researchers detected diagnostic absorption features near 740 and 800 nanometers and validated the resulting anomalies against laboratory spectroscopy, surface geology, and higher-resolution imagery. The study described the work as a demonstration that neodymium can be detected directly in a geo…
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