Breddin's Graph for Fault and Slip Data
Breddin's Graph for Fault and Slip Data
If one of the principal stress directions is vertical, then overlaying one of the abaci proposed below on a plot of the rake versus strike of fault and slip data yields the horizontal principal stress directions and a constraint on the stress tensor aspect ratio. This method, which is similar to Breddin's graph for two-dimensional strain analysis, is explained in Célérier & Séranne (2001) and based on results from Célérier (1995).
Abaci for different dip ranges of the data in various formats:
| Fault plane dip range | PDF(1) | PS(2) | SVG(3) |
| [0,90](4) | - | SVG | |
| [0,90] | PS | SVG | |
| [10,90] | PS | SVG | |
| [20,90] | PS | SVG | |
| [30,90] | PS | SVG | |
| [40,90] | PS | SVG | |
| [50,90] | PS | SVG | |
| [60,90] | PS | SVG | |
| [70,90] | PS | SVG | |
| [80,90] | PS | SVG | |
| [80,90](5) | - | SVG |
(1) PDF: Portable Document Format files to view with a web browser or Acrobat reader.
(2) PS: PostScript files that print at the same scale as the rake versus azimuth plots made with the
Fsa
software and can therefore be overlain on these plots to analyse data.
(3) SVG: Scalable Vector Graphic files that can be viewed in a web browser
(4) with labels as in Figure 9 of
Célérier & Séranne (2001)
(5) with labels as in Figure 10 of
Célérier & Séranne (2001)
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