Felsic and Mafic Rock Geochemistry of the Yukon Finlayson Lake VHMS District

Yukon, Canada hosts five volcanic-hosted massive sulphide deposits totaling approximately 34 million tonnes. This thesis presents field, lithogeochemical, and Nd isotopic data for igneous rocks to analyze tectonic setting and magmatic relationships to mineralization. It models Devonian-Mississippian arc and back-arc magmatism spanning from approximately 365 to 346 million years ago.

Use Cases

• Analyze lithogeochemical data to classify felsic and mafic rock types and their association with VHMS mineralization.
• Use Nd isotopic data to model the tectonic evolution and crustal sources within the arc and back -arc settings.
• Correlate high field strength element (HFSE)-enriched A-type felsic rock signatures with periods of high-temperature magmatism and extension.
• Study the stratigraphic relationships between the Fire Lake, Kudz Ze Kayah, and Wolverine units using field and geochemical data.

Strengths

• Focuses on a mineral district containing five known VHMS deposits with a total resource of approximately 34 million tonnes.
• Integrates multiple data types including field observations, lithogeochemistry, and Nd isotope analysis.
• Provides a detailed chronological model for magmatism covering a ~19 million year period from approximately 365 to 346 Ma.

Limitations

• Data is presented in a thesis format (HTML), which may not be structured as a ready-to-use analytical table or database.
• Sample size and specific row counts for geochemical measurements are not provided in the input.
• The dataset's primary focus is geological interpretation, which may require domain expertise to extract quantitative features for ML.

Provenance

Source

Government of Yukon

Collection Method

Fieldwork, lithogeochemical analysis, and Nd isotopic study compiled for a thesis.

Time Range

Devonian-Mississippian (~365 to 346 million years ago)

Freshness

null

Geography

Finlayson Lake region, southeastern Yukon, Canada