Late Cenozoic Tephra Ages in Yukon Territory via Glass-Fission-Track Dating

Klondike district in Yukon Territory contains three dated distal tephra beds. The dataset likely contains glass-fission-track ages for Mosquito Gulch (1.42 ± 0.16 Ma), Quartz Creek (3.00 ± 0.33 Ma), and Jackson Hill (0.13 ± 0.03 Ma) tephra beds. It was published by the Government of Yukon and last updated on 2026-04-17.

Use Cases

• Establishing chronostratigraphic frameworks based on dated tephra beds.
• Correlating terrace and gravel deposits using tephra age markers.
• Investigating the onset of permafrost conditions based on tephra presence in ice-wedge casts.
• Applying grain-specific dating methods like fission-track for fine-grained distal tephra.

Strengths

• Provides precise ages with reported uncertainties (e.g., 0.13 ± 0.03 Ma).
• Dates three distinct, compositionally homogeneous rhyolitic tephra beds.
• Links tephra ages to specific geological features like terraces and gravels.

Limitations

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

Provenance

Source

Government of Yukon

Collection Method

Glass-fission-track dating method applied to tephra samples.

Time Range

Late Cenozoic, specifically covering ages from 0.13 to 3.00 million years ago.

Freshness

Last updated 2026-04-17 16:09:15.991382; freshness should be verified.

Geography

Klondike district, Yukon Territory, Canada.