Bedrock Geology Maps of Takhanne and Kluhini River Areas, Southwest Yukon

Government of Yukon bedrock mapping extends previous work on the Coast plutonic complex from Haines Junction to the British Columbia border. The dataset characterizes deformed and metamorphosed rocks of the Yukon-Tanana terrane and Paleozoic to Mesozoic roof pendants within the Paleocene Ruby Range plutonic suite. It includes metamorphic mineral assemblage data indicating pressure-temperature conditions ranging from 635-655°C and 6.3-7.9 kbar to lower pressures (~3.5-4 kbar).

Use Cases

• Analyze regional metamorphic grade variations based on pressure-temperature condition data
• Study structural relationships and thrusting events based on descriptions of Yukon-Tanana terrane rocks
• Investigate the influence of pluton intrusion on metamorphic pressures based on Ruby Range suite data
• Map the distribution of Paleozoic to Mesozoic roof pendants within plutonic suites

Strengths

• Includes specific metamorphic pressure-temperature data (635-655°C, 6.3-7.9 kbar)
• Extends previous mapping work, providing continuity of geological data
• Focuses on a specific, defined geographic area (NTS 115A/2 and 115A/7 map areas)

Limitations

• Regional stratigraphic relationships of Paleozoic to Mesozoic rocks are described as 'not well constrained'
• 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

Bedrock mapping fieldwork and analysis

Freshness

Last updated 2026-04-17 15:52:54.428980; freshness should be verified

Geography

Takhanne River (NTS 115A/2) and Kluhini River (NTS 115A/7) map areas, southwest Yukon