Yukon Stream Sediment Geochemical Survey Data 1976-2006

Yukon's regional stream sediment geochemical compilation contains over 30,000 samples collected between 1976 and 2006. The dataset includes results from three analytical methods (AAS, INAA, ICPMS), with ICPMS analysis providing upgraded detection limits and a broader range of elements for over 24,000 reanalyzed samples.

Use Cases

• Analyze elemental concentrations from ICPMS data to identify regional geochemical anomalies for mineral exploration
• Compare detection limits and element ranges across AAS, INAA, and ICPMS analytical method feature classes
• Map sample locations with improved accuracy to correlate physiography with water quality data in the RGS_SITE_WATER feature class
• Use the RGS_All feature class to study temporal trends in commodity and pathfinder elements like Au, As, Sb, and W over the 30-year collection period

Strengths

• Over 30,000 physical samples provide substantial spatial coverage for the Yukon region
• Includes reanalysis of more than 24,000 samples via ICPMS for improved detection limits and broader element range
• Data spans three decades (1976-2006) enabling longitudinal geochemical studies
• Organized into six distinct feature classes by analytical method for clear data segmentation

Limitations

• AAS method data is noted as partially superseded by INAA and ICPMS data and cannot provide accurate determinations for several key elements
• Sample collection ended in 2006, limiting analysis of recent geochemical conditions
• Specific column names and row counts per feature class are not provided in the input

Provenance

Source

Government of Yukon

Collection Method

Stream sediment samples collected and analyzed using Atomic Absorption Spectrometry (AAS), Instrumental Neutron Activation Analysis (INAA), and Inductively Coupled Plasma Mass Spectrometry (ICPMS)

Time Range

1976 to 2006

Freshness

Dataset compilation was updated in November 2020, though raw sample collection ended in 2006.

Geography

Yukon, Canada