The lineament analysis we carry out is a purely manual procedure.
Hence, apart from natural occasional human errors, and distortions or the flaws of the images, no artificial systemic errors (such as automatic processing bias) affect the results.
In recent years new methods of automatic deciphering of lineaments are being developed with a limited level of success, though. Two of such new methods are adopted by author as an addition to manual analysis for visual comparison, so that if any structure was missed during manual analysis, it could be added to the lineament database.
After all the lineaments are detected and drawn as vectors (in ArcGIS, shape files) they are processed with various computer programs (custom-built and commercial) and creating contour maps of lineament densities and strain levels for the area:
Hence, apart from natural occasional human errors, and distortions or the flaws of the images, no artificial systemic errors (such as automatic processing bias) affect the results.
In recent years new methods of automatic deciphering of lineaments are being developed with a limited level of success, though. Two of such new methods are adopted by author as an addition to manual analysis for visual comparison, so that if any structure was missed during manual analysis, it could be added to the lineament database.
After all the lineaments are detected and drawn as vectors (in ArcGIS, shape files) they are processed with various computer programs (custom-built and commercial) and creating contour maps of lineament densities and strain levels for the area:
The last stage of the MHSLA is analyzing the data spatially and outlining the areas which should be the Exploration Targets from the standpoint of the method - image to the right.
This Exploration Target Map may be taken as independent final result if MHSLA was requested by the Client as stand-alone separate method application. This map can also be taken as a Preliminary Exploration Target Map in case it is planned to combine the Map with the results of the Analogue Modeling. |