Tonian Reef Stratigraphy in the Yukon's Fifteenmile Group

The Yukon's Coal Creek inlier in the Ogilvie Mountains hosts microbial reef data from the Tonian Period (1000–720 Ma). This dataset includes seven detailed stratigraphic sections documenting reef-building microbialites from the ca. 850–780 Ma Fifteenmile Group. It was published by the Government of Yukon on open_canada and last updated in April 2026.

Use Cases

• Analyzing stratigraphic context for microbial reef development based on detailed stratigraphic sections.
• Comparing microbialite textures (laminated vs. unlaminated) based on documented morphological distinctions.
• Investigating exceptional preservation of unlaminated microbialite based on rare instances identified.
• Correlating reef framework morphologies with coeval groups like the Little Dal Group based on identified similarities.

Strengths

• Includes seven new detailed stratigraphic sections.
• Focuses on a critical geological transition period (Tonian, 1000–720 Ma).
• Provides stratigraphic context for reef-building microbialites.

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 a single inlier in the Yukon.

Provenance

Source

Government of Yukon

Collection Method

Scientific research contributing seven new stratigraphic sections.

Time Range

Tonian Period (1000–720 Ma), specifically ca. 850–780 Ma.

Freshness

Last updated 2026-04-17 15:49:16.767679; freshness should be verified.

Geography

Coal Creek inlier, Ogilvie Mountains, Yukon, Canada.