Geochemical Analysis of the Pattison Alaskite Pluton in Yukon

A geological study details the petrology and geochemistry of the Pattison Alaskite Pluton, a Tertiary intrusion in southwestern Yukon. The report describes its 18-kilometer diameter, textural zonation into fine, medium, and coarse-grained phases, and the geochemical trends of its constituent alaskites and aplite dykes.

Use Cases

• Model trace element liquid line of descent across fine-grained alaskite, medium-grained alaskite, coarse-grained alaskite, and aplite dyke phases.
• Analyze the relationship between textural zonation (fine-grained border phase, graphic miarolitic phase, coarse-grained phase) and volatile pressure evolution during crystallization.
• Study the formation mechanisms of shallowly dipping aplite dykes, graphic groundmass, and molybdenum mineralization linked to retrograde boiling.
• Correlate Rayleigh fractional crystallization of alkali feldspar with major element uniformity and trace element differentiation trends within the pluton.

Strengths

• Provides detailed petrogenetic model for a specific 18-kilometer diameter pluton.
• Describes distinct textural and compositional phases (fine-grained, medium-grained, coarse-grained alaskite, aplite dykes).
• Analysis includes geochemical differentiation trends and specific formation mechanisms like filter pressing and retrograde boiling.

Limitations

• Data is presented as a descriptive geological report in HTML format, not as a structured, queryable table or dataset.
• No quantitative sample data, row counts, or measured column values are provided for direct computational analysis.
• Temporal coverage is limited to the Tertiary period without specific dates for sample collection or analysis.

Provenance

Source

Government of Yukon

Collection Method

null

Time Range

Tertiary period

Freshness

null

Geography

Pattison Alaskite Pluton, Yukon Crystalline Terrane, southwestern Yukon