How the geo strata are identified as time periods

The fact remains that the evo interpretation is evidentially falsified for the viewing pleasure of even the most common of men.
Since, the sedimentary layers are defined by the constituents they possess. And, the constituents of a particular sedimentary layer is relatively homogeneous.
(That's why the tell-tale color/shading bands exist)The idea that for millions of years only one particular set of sedimentary constituents was deposited per any particular layer in question is unbelievable.Joman.

The point I made is that it is unreasonable to think that sediments of one particlar make up of constituents were laid down over any great length of time. This conclusion means that the uniformitarian timelines are unreasonable with respect to sedimentary strata.
The responses so far were not scientific ones.
I think I know what the problem with reponding to my point is. The evo's on this thread have searched the web for an easy answer and have found the search to be useless.
Which is why I chose this simple proof.Joman.