White River Ash Depth and Thickness in Seven Yukon Lakes

Sediment cores from seven lakes document the White River Ash, a volcanic deposit from 1147 years ago. The depth of sediment above the ash layer ranges from 38 to 98 cm, while the ash thickness itself varies between 0.1 and 32 cm. This dataset, published by the Government of Yukon, is intended for interpreting the impact of past volcanic events on the environment.

Use Cases

• Modeling volcanic ash dispersal based on thickness measurements that increase with proximity to the source vent.
• Calibrating sedimentation rates in lakes based on the depth of sediment overlying a known-age ash layer.
• Assessing the environmental impact of the White River Ash eruption mentioned in the description across a 92-254 km transect.

Strengths

• Data includes specific, measured ranges for ash depth (38-98 cm) and thickness (0.1-32 cm).
• Samples are spatially distributed across seven lakes within a defined plume, spanning distances of 92 to 254 km from the source.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Government of Yukon

Collection Method

Sediment cores sampled from seven lakes, with measurements based on magnetic susceptibility.

Time Range

Cores contain the White River Ash layer dated to 1147 cal. years BP.

Freshness

Last updated 2026-04-17 16:12:48.078813; freshness should be verified.

Geography

Southwest Yukon, Canada; lakes within the plume of the eastern lobe of the White River Ash.