Figure 7. Analog model E 354: Offset-Orthogonal Rift. (a) Overhead view of analog model after 4 cm extension. (b) Overhead view of analog model after 7.5 cm extension (50% stretching at the base of the model). Illumination is from the right. (c) Line diagram interpretation of the surface fault pattern at the end of extension. Dark bands are faults dipping to the left, and light bands are faults dipping to the right. The blue shading marks the stretched rubber sheet at the base of the model. (d) Serial sections through the offset-orthogonal rift model. Synkinematic strata are the red and white layers at the top of the grabens on each side of the central intrarift horst block. Location of sections is indicated in (c).

Click here for sequence of Figure 7a, b, c.        Click here for sequence of sections shown in 7d.