How do creationists explain the geologic column? The geologic column and fossil record contained within has been used to support the theory of evolution. How do creationists explain it instead?
The long-age view of the geologic column is uniformitarian, in which the rock layers represent time, and burial order of fossils represents the order of evolution.  In contrast, the young-earth creationist explanation is catastrophic, where the rock layers represent a big watery catastrophe (Noah's flood) and the burial order of fossils shows where creatures were carried to and rapidly buried in the flood.

The mainstream geologic column is divided into different epochs and eras in time which the layers are supposed to represent.  The creationist geologic column is divided in the same kind of way, but the timescale is very different.

And overview of a creationist geologic column can be seen here http://biblicalgeology.net/Model/Biblical-Geology.html

More detailed classification and subdivisions can be seen here http://biblicalgeology.net/Model/Detail.html

This is of course just one model, which may be helpful for creationists to understand and interpret the rocks.