Magnetic Tutorial - Karoo - 1 Importing databases, creating grids and maps

Download two tutorial csv files at:
drive.google.com/open?id=18pzLaatqKGlSTDl2vUl4r…

Important things to remember for magnetics:
- It only works if there is a physical property (susceptibility) contrast
- The main field you are measuring is the induced field, but there is also the possibility of a remanent field in a direction different to the induced field that will affect your results
- Make measurements at 90 degrees to the strike of the body
- Factors affecting the size and shape of an anomaly are: Bearing of your profile, latitude of the survey, depth of the body and also flight height, and width of the body, susceptiblity of the body, remanent magnetisation of the body
- Don't forget that your resolution is affected by the instrument you use, but also how often you take a measurement. Station spacings that are too large can result in aliasing and undersampling of the anomaly (see Nyquist frequency)

scheiber-enslin.blogspot.com