[Nyralthotep]

Carbon dating ican only be done on organic material. Dating on rock samples and such is done by looking at an element that decays into another element and making an assumption based on how much of the latter element is present that it took x amount of years for the former element to decay so it's x years old. Unfortuantely they assume that the only way the latter element can be present is by decay but they don't actually know what the proportions of the elements are because again, nobody was there to test the sample after it's formation. What most people want to believe is that these scientist are objective people when many of the evolutionary scientists are avowed athiests. I'm not advocating either position, but I would prefer it to be an honest discussion with assumptions being placed on the table for all to see.

[RadioAstronomer]

Unfortuantely they assume that the only way the latter element can be present is by decay but they don't actually know what the proportions of the elements are because again, nobody was there to test the sample after it's formation

Not true. Due to the fact that each daughter product has its own rate of decay, the scientist can look at the ratio of all of the daughter products and determine quite accurately the origional ratios of the isotopes/elements.