Proterozoic and Early Paleozoic Volcanic Rocks in Yukon's Ogilvie Mountains

A 2026 report details volcanic rocks within the Selwyn Basin assemblage and Proterozoic carbonate rocks near the Mackenzie Platform in the Dawson map-area. It focuses on the Mount Harper complex, describing two mafic to felsic volcanic cycles based on two field mapping seasons. The dataset provides interpretations of stratigraphy and regional volcanism style.

Use Cases

• Analyze the stratigraphic position and internal relations of volcanic piles within the Selwyn Basin assemblage.
• Compare characteristics of the two volcanic groups and their correlative occurrences in the Dawson map-area.
• Interpret the style of Proterozoic and early Paleozoic volcanism from the stratigraphy of the Mount Harper complex.

Strengths

• Report is based on two dedicated field mapping seasons, providing primary observational data.
• Focuses on the Mount Harper complex, which is noted as more completely exposed than other occurrences.
• Provides specific interpretations of volcanic cycles and regional volcanism style.

Limitations

• No structured tabular data (columns/rows) is provided; information is contained in narrative HTML format.
• Understanding of the volcanic stratigraphy is described as less definite compared to correlative sedimentary units.
• Geographic scope is limited to specific occurrences in the Dawson map-area and Mount Harper.

Provenance

Source

Government of Yukon

Collection Method

Field mapping and geological analysis.

Time Range

Proterozoic and Early Paleozoic eras.

Freshness

Last updated March 25, 2026.

Geography

Ogilvie Mountains, Mount Harper, Dawson map-area, west-central Yukon, Canada.