Mount McIntyre Pluton Paleomagnetic Data for Yukon Tectonic Motion

109 Ma paleomagnetic measurements from 20 granitic sites in the Mount McIntyre pluton, west of Whitehorse, Yukon. The dataset, published by the Government of Yukon, includes three clusters of ChRM directions used to estimate poleward translation and rotation of Cordilleran terranes. The motion likely occurred between 109 Ma and 45 Ma.

Use Cases

• Estimate northward translation of terranes based on paleopole calculations
• Model clockwise rotation of geological units based on paleomagnetic direction clusters
• Investigate tectonic motion differentials between northern and southern pluton sites
• Correlate paleomagnetic signatures with adjacent igneous units like the Whitehorse Pluton

Strengths

• Data from 20 distinct granitic sampling sites provides spatial coverage
• Well-defined mean ChRM directions for 11 northern sites and 7 southern sites
• Specific paleopole translation estimates (~3900 km and ~1600 km) and rotation (~80°) are provided

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Geobarometric estimates for post-crystallization tilting were inconclusive

Provenance

Source

Government of Yukon

Collection Method

Paleomagnetic measurements on samples from granitic sites

Time Range

Mid-Cretaceous (109 Ma), motion between 109 Ma and 45 Ma

Freshness

Last updated 2026-04-17 16:08:15.244933; freshness should be verified

Geography

Mount McIntyre pluton, Whitehorse map area (105D), southern Yukon Territory