Interpretation of Geophysical Data: He and Li Project (digital data, various formats)

This is a digital release of raster and vector datasets of an interpretation of airborne geophysical data done by Ronacher McKenzie Geoscience Inc. for the Alberta Geological Survey between November 2020 and March 2021.

All GIS data and metadata are in ‘as is’ format provided by the contractor, Ronacher McKenzie Geoscience Inc.

This digital data release contains the following datasets:

• PRA: Peace River Arch study area
• SAB: Southern Alberta study area
• ALBERTA: Reference province-wide data

For each study area, the DIG contains the following vector products in Shapefile format:

• PROJECT_AREA: Outline of the study area
• EXTENSION: Extended study area outline
• DEM_OBSERVATIONS: Observations of lineaments in the DEM
• INTERP_LINE: Interpreted feature lines
• MAG_OBSERVATIONS: Interpreted features from magnetic data

For each study area, the DIG contains the following raster products in ERS, GEOTIFF, and GRD formats:

• TMI: Total magnetic intensity
• VD1: First vertical derivative
• VD2: Second vertical derivative
• AS: Analytic signal
• RTP: Reduction to pole ("RTP")
• RTP_BW: Reduction to pole - black and white
• RTP_VD1: First vertical derivative of RTP
• RTP_VD1_BW: First vertical derivative - black and white
• RTP_VD2: Second vertical derivative of RTP
• RTP_THDR: Total horizontal derivative of RTP
• RTP_THDR_VD1: First vertical derivative of total horizontal derivative
• RTP_TDR: Tilt filter of RTP
• RTP_HD_TDR: Horizontal derivative of tilt filter
• RTP_AREA: Filter highlighting consistent areas of RTP
• RTP_EDGE: Filter highlighting edges of RTP
• STRUCTURE: RGB Ternary product: R-VD1, G-dx, B-dy; Highlights structures
• GEOLOGY: RGB Ternary product: R-TMI, G-VD1, B-VD2; Highlights geological boundaries
• The rasters containing _EXT in the filenames cover the extensions of the study areas.