One thing I'm wondering about and haven't found anything yet (related to sedimentation) is the process of ossification and the minimum amount of time required to create fossils.
I imagine any experiments done on this subject would be few and far between since a global flood would require a high column of water's worth of pressure, thereby requiring pressure chambers (under constant load) or a large vertical apparatus in order to see if fossils can be created in one human's lifetime.
If you run across any information on the topic, I would find it very interesting indeed!
From my understanding, most fossil formation has to do with remineralization, movement of minerals (ossification is just bones, right?) etc. You can find Revolutionary War and Civil War relics in rivers with minor mineralization already taken place. If their is enough iron or calcium in the water it can happen under medium to low pressure.
My guess is that under high pressure, with sufficent mineral concentration, fossilization could happen in hours, days or months at the most.......under the right conditions.
Osmosis and such doesnt care if the creature was alive 2 hours ago....as soon as the cell walls start to break and leak, in come the minerals and out flow the organics.
I read a couple articles about this in college, but doubt if I still have (or could find where) the photocopies.