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Figure 11. East African rift system, Kenya. (a) Landsat thematic mapper (TM) image of the Gregory rift west of Nairobi, Kenya. (b) Line diagram interpretation of (a) showing the segmented and slightly offset rift-border fault system on the east and a high density of north-south–oriented intrarift faults in the main part of the rift. This pattern is characteristic of orthogonal rifting with the dominant extension direction oriented east-west.
