[Aracelis]

At least one of the techniques for geological dating which we read so much about, i.e. varves, has turned out to be nothing but wishful thinking

Would you please post a link to this information?

[titanmike]

Would you please post a link to this information?

Sure. Here's one such link.

If you don't like that one, do a google search on 'varves' and 'mount st. helens' and pick one. There's lots to choose from.