"Contamination happens in a variety of ways, so you're simply not correct. Do you have any links to research showing that the sample was intrinsic rather than a contamination? Let me save you time - no. That C-14 was detected is irrelevant when all the issues are corrected for."
I was referring to when contamination has been ruled out. Yes, there are examples. For now, just take these quotes into consideration. They are not by creationists.:
"In general, dates in the ?correct ball park? are assumed to be correct and are published, but those in disagreement with other data are seldom published nor are discrepancies fully explained."
- R.L. Mauger, Ph.D. (Geology) (Associate Professor, East Carolina University), ?K-Ar ages of biotites from tuffs in Eocene rocks of the Green River, Washakie and Uinta Basins?. Contributions to Geology, Wyoming University, vol.15 (1), 1977, p.37.
"The troubles of the radiocarbon dating method are undeniably deep and serious. Despite 35 years of technological refinement and better understanding, the underlying assumptions have been strongly challenged, and warnings are out that radiocarbon may soon find itself in a crisis situation. Continuing use of the method depends on a ?fix-it-as-we-go? approach, allowing for contamination here, fractionation there, and calibration whenever possible. It should be no surprise, then, that fully half of the dates are rejected. The wonder is, surely, that the remaining half have come to be accepted.
"No matter how ?useful? it is, though, the radiocarbon method is still not capable of yielding accurate and reliable results. There are gross discrepancies, the chronology is uneven and relative, and the accepted dates are actually selected dates. This whole blessed thing is nothing but 13th-century alchemy, and it all depends upon which funny paper you read."
- Dr. Robert E. Lee, ?Radiocarbon: Ages in Error? Anthropological Journal of Canada, Vol. 19(3), 1981, pp. 9,29 (Assistant Editor).
"If a C-14 date supports our theories, we put it in the main text. If it does not entirely contradict them, we put it in a footnote. And if it is completely ?out of date,? we just drop it."
-T. Save-Soderbergh and I.U. Olsson (Institute of Egyptology and Institute of Physics respectively, Univ. of Uppsala, Sweden), ?C-14 Dating and Egyptian Chronology in Radiocarbon Variations and Absolute Chronology?, Proceedings of the Twelfth Nobel Symposium, New York 1970, p. 35