A report summarizing the first use of microscopic tephra analysis methods in northwestern North America. Five peatland sites in southeastern Alaska were cored, yielding 14 significant layers representing at least 4 different tephras. The dataset is provided by the Government of Yukon and was last updated on April 17, 2026.
Use Cases
- Expand tephrochronology frameworks based on microscopic ash layers.
- Study volcanic impacts in southeastern Alaska based on recovered tephra layers.
- Compare microscopic tephra analysis methods between Europe and North America.
- Identify potential volcanic sources based on the four distinct tephras found.
Strengths
- First application of microscopic tephra methods in northwestern North America.
- Analysis of five distinct peatland sites in southeastern Alaska.
- Recovery of 14 significant layers representing at least 4 different tephras.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The source volcanoes for the recovered tephra layers are not yet identified.
Provenance
- Source
- Government of Yukon
- Collection Method
- Peatland coring and microscopic tephra analysis.
- Freshness
- Last updated 2026-04-17 15:55:32.011733; freshness should be verified.
- Geography
- Southeast Alaska