You can see the results of multiple transgressive/regressive cycles in the San Juan Basin here. No way this stratigraphy could be formed in a single “flood”.
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For those reading this, a fluvial geomorphologist studies how rivers form and change the landscape. They study the interactions between water, sediment, and vegetation in a river basin.
Fluvial geomorphologist was also my Halloween trick-or-treating costume last year.
For authenticity, in my shirt pocket and on my belt clips I had a compass and clinometer, hand lens, measuring tape, geological hammer, a coring auger, and some specimen sample bags for comparing the rock strata of different continents.