Teslin Suture Zone Petrotectonic Study with Structural Domains

The Teslin suture zone (TSZ) forms the boundary between ancient North American rocks and western allochthonous terranes. Rocks were deformed and metamorphosed at temperatures of 450-650°C and pressures ≥6 kbars, likely during Late Triassic to mid-Jurassic time. The Government of Yukon published this progress report on the TSZ's three distinct structural domains.

Use Cases

• Modeling ductile deformation and metamorphism based on temperature (450-650°C) and pressure (≥6 kbars) conditions
• Analyzing structural kinematics based on described right-lateral or top-to-the-north movement parallel to Le2
• Mapping regional-scale anastomosing shear zones based on the distribution of Le1 and Le2 stretching lineations
• Investigating the history of right-lateral transpression along the Triassic-Jurassic North American margin

Strengths

• Specific metamorphic conditions are documented: temperatures up to 625°C and pressures to 8 kbars
• Detailed structural analysis of three distinct elongate domains and their kinematic indicators
• Clear temporal context provided: deformation likely occurred during Late Triassic to mid-Jurassic time

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 Yukon study area

Provenance

Source

Government of Yukon | Gouvernement du Yukon

Time Range

Late Triassic to mid-Jurassic time

Freshness

Last updated 2026-04-17 15:53:17.373302; freshness should be verified

Geography

Teslin suture zone, Yukon, specifically the eastern Laberge/western Quit Lake map area