Paleomagnetic Data for Seymour Creek Stock, Yukon-Tanana Terrane

154 paleomagnetic specimens from 16 sites in the Late Cretaceous Seymour Creek stock, Yukon. The Government of Yukon presents results suggesting minimal geotectonic motion of the Yukon-Tanana Terrane since 68.5 ± 0.2 Ma. The dataset was last updated on April 17, 2026.

Use Cases

• Modeling tectonic rotation based on paleomagnetic declination and inclination data
• Comparing paleopole positions against apparent polar wander paths
• Estimating net translation and rotation of geological terranes relative to a continent
• Analyzing the stability of intrusions based on geological relations suggesting no tilt

Strengths

• 154 specimens from 16 sites provide a sample for statistical analysis
• Mean paleomagnetic direction with statistical parameters (alpha 95 = 4.3°, k =73.8) is reported
• Emplacement age is precisely constrained to 68.5 ± 0.2 Ma

Limitations

• 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

Paleomagnetic study involving stepwise demagnetization of rock specimens

Time Range

Late Cretaceous (68.5 ± 0.2 Ma)

Freshness

Last updated 2026-04-17 15:52:40.196817; freshness should be verified

Geography

Seymour Creek stock, Yukon-Tanana Terrane, west-central Yukon