Changes

==Calculating incremental strain==

==Calculating incremental strain==

[[file:evaluating-top-and-fault-seal_fig10-38.png|thumb|{{figure number|1}}Cross section of a low-relief salt structure showing three seismic sequences.]]

[[file:evaluating-top-and-fault-seal_fig10-38.png|300px|thumb|{{figure number|1}}Cross section of a low-relief salt structure showing three seismic sequences.]]

[[:file:evaluating-top-and-fault-seal_fig10-38.png|Figure 1]] is a simple cross section of a low-relief salt structure showing three seismic sequences. The figure shows how strain is calculated: by comparing the original undeformed line length with the deformed line length between two arbitrary points, A and B. In this figure, 1₀ is the initial, undeformed line length; 1₁ is the deformed line length of the 60-m.y sequence boundary; and 1₂ is the deformed line length of the 131-m.y. sequence boundary. The strain (ε) on the 131-m.y sequence boundary is ε = (1₂ – 1₀)/1₀ = 2.5%. The strain on the 60-m.y. sequence boundary is ε = (l₁ – 1₀)/1₀ = 0.5%. All strains are extensional.

[[:file:evaluating-top-and-fault-seal_fig10-38.png|Figure 1]] is a simple cross section of a low-relief salt structure showing three seismic sequences. The figure shows how strain is calculated: by comparing the original undeformed line length with the deformed line length between two arbitrary points, A and B. In this figure, 1₀ is the initial, undeformed line length; 1₁ is the deformed line length of the 60-m.y sequence boundary; and 1₂ is the deformed line length of the 131-m.y. sequence boundary. The strain (ε) on the 131-m.y sequence boundary is ε = (1₂ – 1₀)/1₀ = 2.5%. The strain on the 60-m.y. sequence boundary is ε = (l₁ – 1₀)/1₀ = 0.5%. All strains are extensional.