Ogilvie Mountains Glacial Chronology Using Cosmogenic Nuclides

A study from the Government of Yukon uses terrestrial cosmogenic nuclides to date the penultimate ice advance in the Ogilvie Mountains. The research integrates radiocarbon ages, macrofossil samples, optically stimulated luminescence ages, and detailed stratigraphy from sites near Chapman Lake. The dataset likely contains geospatial and chronological data to determine if Marine Isotope Stage 4 or 6 conditions led to the glacial surface.

Use Cases

• Reconstructing Pleistocene glacial history based on cosmogenic nuclide depth profiles.
• Testing chronological models for ice sheet advances based on integrated dating methods.
• Analyzing regional climate forcing effects based on the calculated glacial ages.
• Comparing glacial chronologies across Yukon and Alaska based on Marine Isotope Stage assignments.

Strengths

• Integrates multiple dating methods: cosmogenic nuclides, radiocarbon, optically stimulated luminescence.
• Focuses on a specific, problematic region (Ogilvie Mountains) for glacial chronology.
• Supported by detailed stratigraphy from significant sites near Chapman Lake.

Limitations

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

Provenance

Source

Government of Yukon

Collection Method

Scientific study using terrestrial cosmogenic nuclide dating, radiocarbon dating, optically stimulated luminescence, and stratigraphic analysis.

Time Range

Pleistocene epoch, focusing on Marine Isotope Stages 4 and 6.

Freshness

Last updated 2026-04-17 15:55:29.004586; freshness should be verified.

Geography

Ogilvie Mountains, east of Dawson City, Yukon, Canada.