Yukon Magnetic Geophysical Data Reprocessing for NTS 115J

Aurora Geosciences Ltd reprocessed publicly available digital magnetic geophysical data submitted with assessment reports prior to March 2015. Individual assessment report data were levelled and integrated with 1:250,000 compilations. Four gridded PDFs have been produced, including residual total magnetic field, reduced to pole, vertical derivative, and tilt derivative.

Use Cases

• Interpret subsurface geological structures based on processed magnetic field grids.
• Conduct mineral exploration targeting using derivative maps like vertical and tilt derivatives.
• Integrate reprocessed magnetic data with other regional geophysical compilations.
• Validate historical assessment report data against standardized regional compilations.

Strengths

• Data integrated from multiple assessment reports into standardized 1:250,000 compilations.
• Four distinct processed magnetic grids (residual, reduced to pole, vertical derivative, tilt derivative) are provided.
• Original 250k geophysical data is documented in a referenced open file (YGS Open File 2017-39).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal bias inherent to the source, as only data submitted prior to March 2015 were considered.

Provenance

Source

Government of Yukon

Collection Method

Reprocessing and levelling of publicly available digital magnetic data from assessment reports.

Time Range

Data submitted prior to March 2015.

Freshness

Last updated 2026-05-20 16:33:17.087959; freshness should be verified.

Geography

Yukon, Canada, specifically National Topographic System (NTS) map sheet 115J.