With these kinds of numbers, how justified are we in assuming a geologic "column" even exists, that is to say, a record that shows continuity from top to bottom throughout?
How many supernovas have been spectrally analyzed out of the total? How many stars placed on the Hartzsprung-Russel diagram of the the total number of stars? How many orbits have been observed, calculated and prdicted to verify the law of gravity out however many orbits there are?
It would appear that we can't prove the geologic column exists. We haven't been through enough of it yet.
How many times have you seen the sun rise? I would suspect that it is a tiny percentage of all the times that the sun rose. You still believe it's going to rise tommorrow, right? We believe in a geological column because, even though we haven't explored a significant percentage of it, every place that is explored shows the same basic record. Whether you dig in Africa, China, Colorado, or Argentina (or any other place that we've dug so far), the basic record is the same. Since we've seen the same thing everywhere, so far, we assume that there must be a regularity in the fossil record. Without evidence to the contrary, it makes sense to assume that the worldwide geological column is similar everywhere. If we dig somewhere and see something completely different, then science will modify this belief.