OK. Sorry. On the more positive side of things I have looked up (i.e. Wiki'ed) a bit more about what those who advocate flood geology have said and done and what the currently preferred flood geology model is. The main current theory seems to be "runaway subduction".
Wiki on flood geology writes:
In the last two decades, most proposed flood mechanisms involve "runaway subduction", the rapid movement of tectonic plates, in one form or another.
One specific form of runaway subduction is called "catastrophic plate tectonics", proposed by geophysicist John Baumgardner and supported by the Institute for Creation Research and Answers in Genesis.
Link
Basically this is a massive and sudden re-arrangement of tectonic plates. Further details can be found in the link.
An alternative to this is the "Hovind Theory" which describes a giant ice meteor coming towards Earth, breaking into fragments and causing catastrophic flooding and "super cold snow".
There are other versions of flood geology but as far as I can ascertain these are two of the most publicised currently. The creationist position seems most succinctly summed up by the following:
(From Answers in Genesis via Wiki)
quote:
The debate about the age of the earth is ultimately a question of whose word we are going to trust: the all-knowing truthful Creator who has given us His inerrant book (the Bible) or finite, sinful creatures who give us their books that contain errors and therefore are frequently revised. If you firmly trust and carefully read the Bible and become informed on creationist interpretations of the geological record, you can easily see how the rocks of the earth powerfully confirm the Bible’s teaching, both about Noah’s Flood and a young earth.
Basically, so the argument goes, it's all just a matter of interpretation and those who advocate a flood interpretation will argue that their explanation has equal or greater explanatory power than that of conventional science.