Airborne Geophysical Survey of the Dawson Range, Yukon

An airborne survey combining gamma ray spectrometric, magnetic, and VLF sensors was flown in the Dawson Range, central Yukon Tanana Terrane. The data was used to determine surface concentrations of potassium, uranium, and thorium to improve geological mapping and identify alteration halos. The dataset is provided by the Government of Yukon and was last updated on April 17, 2026.

Use Cases

• Map lithological units based on spectrometric domains characterized by potassium, uranium, and thorium signatures.
• Identify alteration halos based on areas of low thorium-potassium ratios and total field magnetic highs.
• Support mineral exploration in weathered terrains where traditional prospecting methods have limited success.

Strengths

• Survey combines gamma ray spectrometric, magnetic, and VLF sensors for multi-parameter analysis.
• Data is used to characterize lithological units with consistent geochemical signatures.
• Dataset is provided by the Government of Yukon under the OGL-CA-2.0 license.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific survey area.

Provenance

Source

Government of Yukon | Gouvernement du Yukon

Collection Method

Detailed airborne geological survey flown in the Dawson Range.

Freshness

Last updated 2026-04-17 15:41:34.158247; freshness should be verified.

Geography

Northern Dawson Range, Central Yukon Tanana Terrane