Whilst I note that the questioner doesn't want to get into discussion over creationism, as an Earth scientist who has studied creationist literature for decades, I must warn all readers that creationist literature, as it pertains to the Earth Sciences, is replete with misconceptions, distortions, quotations out of context, cherry-picking of data to give false impressions, and willful disregard of contrary evidence. Therefore, be very careful what you read, and check it out against genuine science!

A meteorite impact will excavate material from the bottom, and deposit it above the crater rims. Here's how:

This will result in something that looks like this:

Source for both images is http://www.lpi.usra.edu/exploration/education/hsResearch/crateringLab/lab/ - see that website for full copyright info and more in depth explanations.

A very famous example of this inverted stratigraphy is Meteor Crater, AZ.