Faulting call out

GROWTH FAULTS

SECTION +210

Call out of growth faults that formed during equilibrium #2 and early during subsequent rapid base-level fall.

Blow up of growth structures. Small white lines show dips of beds in each fault slice. Colored arrows show interpreted offset horizons between successive faults. Cumulative offsets of each arrow are shown in multicolored line indicating a total extension of 42% ((b = 1.42). This extension is not the product of the increase in line length in the basin due to the sag geometry (which only leads to b = 1.12).

Rotation of beds through time (assuming that cumulative bed thickness is a proxy for time) along each fault seen above. The graphs are lined up assuming that as one fault stops moving the next, more outboard fault begins to move. If these assumptions/proxies are reasonable, theyellow curve suggests that rotation rates were nearly constant (with a slope of about 0.2 degrees per cm of accumulation) during growth faulting.

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