Yukon Stream Sediment Geochemistry 1976-2006

1976 to 2006 stream sediment geochemical compilation for over 30,000 samples across Yukon. The data includes results from multiple analytical methods, with over 24,000 samples reanalyzed using ICPMS for improved detection limits. It updates a previous 2003 compilation with enhanced location accuracy.

Use Cases

• Compare elemental concentrations from ICPMS, INAA, and AAS feature classes to assess analytical method performance.
• Analyze geochemical signatures in the RGS_All feature class for regional mineral exploration targeting.
• Map sample locations with improved accuracy to correlate geochemistry with regional geology.
• Use the RGS_SITE_WATER feature class to model relationships between water quality and sediment chemistry.

Strengths

• Over 30,000 physical samples provide substantial spatial coverage.
• Includes data from three distinct analytical methods (AAS, INAA, ICPMS) for comparison.
• Over 24,000 samples were reanalyzed by ICPMS, offering upgraded detection limits.
• Sample collection spans a 30-year period from 1976 to 2006.

Limitations

• AAS method data is noted as partially superseded and cannot provide accurate determinations for several key elements.
• Data is organized into six separate feature classes, requiring integration for a complete view.
• The primary analytical work concluded in 2006, making the core geochemical data temporally static.

Provenance

Source

Government of Yukon

Collection Method

Compilation and reanalysis of regional stream sediment samples collected for geochemical surveys.

Time Range

1976 to 2006

Freshness

The dataset compilation was released in November 2020, with a platform update recorded in 2026.

Geography

Yukon, Canada