Stereographic Scatter Diagrams

Aabel supports trend, dip/plunge, and azimuth variables, and includes:

• Stereographic scatters with equal angle projection using an equatorial or polar grid. The top image below is an example of an equal angle projection using an equatorial grid
• Stereographic scatters with equal area projection using an equatorial or polar grid.

  The ability to generate tables for representing information regarding the projection type, number of measurements, spherical variance, and normalized eigenvalues and eigenvectors.

The data used to plot the stereographic diagrams below are from the USGS Open File Report 01-428, regarding outcrop structural data from southeastern Alaska.

Aabel exploratory tools such as data brushing (to view data interrelationships) and step-wise X-zooming (to zoom into a region of data), are available to stereographic scatter graphs.