Huh?
You just declared that sedimentary rocks are volcanic when you want them to be.
Message 672:
the formations made up of interspersed layers of volcanic and sedimentary layers that many posted appear to be volcanic in origin, the whole formation
No, the whole formation does not appear to be of volcanic origin. The tuffs are volcanic, the sedimentary rocks are sedimentary. That's why they are labeled as sedimentary. It's because they are sedimentary. In case you haven't figured it out yet, sedimentary rocks are sedimentary, and geologists can tell that they are sedimentary.
You don't get to re-define "sedimentary" as "volcanic" when it's convenient, which is what you are obviously trying to do to avoid the fatal flaws in your fantasies.
And since you claim that the interspersed sedimentary rocks are not sedimentary, it's obvious that to you "sedimentary" and "volcanic" make no reference to the nature of the rocks, you just label them as whatever type you want them to be. Therefore when we consider "Paleozoic sedimentary rocks overlain by Permian/Triassic volcanics, in turn overlain by Jurassic and Cretaceous sediments" you think you can just label the overlying sediments as volcanic and avoid the problem.
You can't.