SI-GRID

Strike Interpretive Gridding

SI-Grid is a computer gridding process that protects trends that may continuously vary throughout a map. No longer does one trend direction need to be favoured at the expense of another. The process builds the interpolated data set entirely from the originating data and does not employ any smoothing or filtering steps.

The example below is taken from the recently released Ontario Geological Survey Magnetic Datset 1211 of the McFauld's Lake area in Northern Ontario. (For more information about the McFauld's Lake area, please visit Spider Resources' exploration page). The image is alternating (it make take a few seconds for download to complete) between the published minimum curvature grid and the enhanced SI-Grid of the same profile data.

Flight line orientation for the survey was north-south. One can readily see the vast mapping improvement offered by SI-Grid.