Sequence Boundaries

Sequence Interpretation

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Structural interpretation of section +210

Three types of faults shown. Reverse faults (green) and 'other' normal faults (orange) are caused by space problems in the basin and result from line length change increase. Growth faults form on their own during times of equilibrium (i.e. constant sea level) and early during falling sea level. Faulting stops as sediment is deposited on fault toes at the base of the slope. b factor, calculated from offset beds, is 2.5 along growth faults, whereas entire basin only has a b = 1.11 due to sag geometry and attendant line length increase.