Permian Rock Geochronology and Geochemistry Data for Yukon-Tanana Terrane
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Description
Government of Yukon provides new geochronological and geochemical data for Permian rocks in the Klondike district. The dataset includes U-Pb zircon dates, Lu-Hf isotope data, and 40Ar/39Ar data, offering constraints on intrusion timing and tectonic settings. It was last updated on 2026-04-17.
Use Cases
Re-evaluate the timing of intrusions based on new high-precision CA-TIMS dating.
Model tectonic settings like back-arc or continental arc using lithogeochemical and Lu-Hf isotope data.
Analyze zircon Pb-loss effects in metamorphic rocks.
Determine cooling histories of metaplutonic rocks using 40Ar/39Ar data.
Strengths
Includes high-precision CA-TIMS dating showing intrusions are ca. 261 Ma.
Contains multiple geochemical data types: U-Pb zircon, Lu-Hf isotope, and 40Ar/39Ar.
Provides new constraints that eliminate previous constraints on the Klondike orogeny.
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
Time Range
Permian period
Freshness
Last updated 2026-04-17 15:57:28.413510.
Geography
Klondike district, western Yukon, Yukon-Tanana terrane