Granite Mountain Batholith Paleomagnetic and Geobarometric Data, Yukon

331 paleomagnetic specimens from 24 sites in the Early Jurassic Granite Mountain batholith (~600 km²) are analyzed. Aluminum-in-hornblende geobarometry at 10 sites defines emplacement depths of ~16-19 km. The data, published by the Government of Yukon, suggests minimal tectonic motion of the Yukon-Tanana Terrane since the Early Jurassic.

Use Cases

• Modeling tectonic plate motion based on paleomagnetic directions from magnetite-borne remanence.
• Estimating crustal emplacement depths based on aluminum-in-hornblende geobarometry results.
• Analyzing differential uplift between structural blocks based on inferred intrusive phases.
• Testing paleomagnetic reference poles for the Early Jurassic and Late Cretaceous periods.

Strengths

• Includes paleomagnetic data from 331 specimens across 24 sampling sites.
• Provides geobarometric depth estimates from 10 sites, ranging from ~16 km to ~19 km.
• Focuses on a specific, well-defined geological unit (~600 km² Granite Mountain batholith).

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 Yukon-Tanana Terrane.

Provenance

Source

Government of Yukon

Collection Method

Paleomagnetic and geobarometric analysis of rock specimens.

Time Range

Early Jurassic (180-170 Ma) and Cretaceous.

Freshness

Last updated 2026-04-17 16:07:52.089115; freshness should be verified.

Geography

Granite Mountain batholith, Yukon-Tanana Terrane, Yukon, Canada.