Drawing a stratigraphic column - example 1 (sed strat)

Stratigraphers record data about sedimentary rocks graphically in stratigraphic columns (and other ways, too). These representations usually use grain size as the "x-axis" and thickness as the "y-axis". In this video I map a photo of some turbidites into a stratigraphic column. This one represents only ~20 cm in thickness, which is rarely done - stratigraphic columns often represent meters to hundreds of meters of rock. However, this example shows the details of how to make a stratigraphic column "bed-by-bed".

[@belleedi7338]

Thanks for the lesson.
I now have an idea on how a sedimentary log is constructed.

[@cristhianmolina6375]

It was very useful, thanks!

[@terryfinchguitarist]

Thank you, I understand this much better now.