This is perhaps the most common objection of all. Creationists point to instances where a given method produced a result that is clearly wrong, and then argue that therefore all such dates may be ignored. Such an argument fails on two counts:
How many creationists would see the same time on five different clocks and then feel free to ignore it? Yet, when five radiometric dating methods agree on the age of one of the Earth's oldest rock formations ( Dalrymple 1986, p. 44 ), it is dismissed without a thought.
This is perhaps the most common objection of all. Creationists point to instances where a given method produced a result that is clearly wrong, and then argue that therefore all such dates may be ignored."
The reliability of creationist sources is often questioned because those who write them are not always experts in the areas they write about. But I believe that their message is true, namely, God created the universe, the earth, and all that is in it, God created life on earth recently, and the earth since then has experienced a major catastrophe. If in a few instances creationist discussion of anomalies in radiometric dating is based on a misunderstanding of the literature, there are plenty of other acknowledged anomalies that they could have used just as well. All in all, I would much prefer creationist sources to the talk.origins FAQ and standard textbook treatments, which gloss over problems that specialists in the fields do not hesitate to admit, and present uniformitarianism, evolution, and radiometric dating as if these were beyond reproach. But I am thankful for the many voices being raised against this triumvirate of confusion, and believe that in the minds of many it is losing credibility, despite the resistance of establishment science. Most people only have time to become familiar with one of these three aspects, and so their doubts are calmed by belief in the evidence from the other two. But all three of them are in confusion.
In general, it's good to read both sides of the story. So I continue to recommend the creation web sites, including the following:"
so esentially it's a creationis telling you to use creationist sources ...REAL CONVINCING
why? because :
"I would much prefer creationist sources to the talk.origins FAQ and standard textbook treatments, which gloss over problems that specialists in the fields do not hesitate to admit, and present uniformitarianism, evolution, and radiometric dating as if these were beyond reproach."
the irony beign of course that this comes forma camp of people who are quite used to bendign the laws of physics.
separation of the red sea any1?
or vapor canopy?
Many dates give values near the accepted ones. But even these often differ from one another by 10 or 20 percent. And quite a few other dates are often much, much farther off. Whatever is making some of these dates inaccurate could be making all of them inaccurate.
It's interesting to note that in a few cases, old radiometric dates are above young ones.
The fact that different methods often give different dates is noted by geologists. Here are some quotes from http://hubcap.clemson.edu/spurgeon/books/apology/Chapter7.html:
"It is obvious that radiometric techniques may not be the absolute dating methods that they claimed to be. Age estimates on a given geological stratum by different radiometric methods are often quite different (sometimes by hundreds of millions of years). There is not absolutely reliable long-term radiological "clock". The uncertainties inherent in radiometric dating are disturbing to geologists and evolutionists... [47]
As proof of the unreliability of the radiometric methods consider the fact that in nearly every case dates from recent lava flows have come back excessively large. One example is the rocks from the Kaupelehu Flow, Hualalai Volcano in Hawaii which was known to have erupted in 1800-1801. These rocks were dated by a variety of different methods. Of 12 dates reported the youngest was 140 million years and the oldest was 2.96 billion years. The dates average 1.41 billion years. [48]""
WOW somehow seeing the word "evolutionists" makes me a bit suspicious to an ultirior motive...not to mention that this is a VERY possible quote mine.
"Another source said that about 5 or 6 of the historic lava flows give ages in the hundreds of thousands of years. Geologists explain the Kaupelehu date by the lava being cooled rapidly in deep ocean water and not being able to get rid of its enclosed argon."
well there you have it... a reason why the certain volacanic rock shouldn't be dated with this method...
"
Here are some quotes from John Woodmorappe's paper, "Radiometric Geochronology Reappraised," Creation Research Society Quarterly 16(2)102-29, p. 147, September 1979, that indicate that radiometric dates are scattered, and that anomalies are often not reported:
"Improved laboratory techniques and improved constants have not reduced the scatter in recent years. Instead, the uncertainty grows as more and more data is accumulated ... " (Waterhouse).
"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." (Mauger)
" ... the thing to do is get a sequence of dates and throw out those that are vastly anomalous." (Curtis et al)
" ... it is usual to obtain a spectrum of discordant dates and to select the concentration of highest values as the correct age." (Armstrong and Besancon).
"In general, strong discordances can be expected among ages deduced by different methods." (Brown and Miller)"
aka...biased quotemining..
"In addition, Woodmorappe gives over 300 sets of dates "that are in gross conflict with one another and with expected values for their indicated paleontological positions." This table is limited to dates that approach 20% discrepancy, too old or too young. This does not include dates from minerals that are thought to yield bad dates, or from igneous bodies with wide biostrategraphic ranges, where many dates are acceptable. He states that the number of dates within range are less than the number of anomalies, except for the Cenozoic and Cretaceous. When one adds in the fact that many anomalies are unreported, which he gives evidence for, the true distribution is anyone's guess. He also combines evidence from the literature to conclude that "somewhat less than half of all dates agree with 10% of accepted values for their respective biostratigaphic positions." I believe this estimate even includes igneous bodies with very wide biostrategraphic limits, and does not include unpublished anomalies."
so he cites a bunch of dates out of...(how many we have no idea) then makes a claim that there are way more dates, which he appears to backup...though i'lll need to see the source for that. and then we realize it's form the same creationist... funny..
"There have been criticisms of John Woodmorappe's study, but no one has given any figures from the literature for the true percentage of anomalies, with a definition of an anomaly, or the degree of correlation between methods. Steven Schimmrich's review of this study often concerns itself with John W's presentation of geologists explanation for anomalies, and not with the percentage of anomalies; the later is my main concern."
no one has given any figueres yet? mm perhaps because they saw the word creationist and thought is wast worth their time...
but anyway, Schimmerich doesn't give an percentages either BUT he DOES attack the way W is portraying anamolies as the overwhelming majority...something which in itself would allow any date to be made ANYWAY, because you wouldn't have a large portion of close dates to get an intelectually accurate date.
"Here are a couple of more quotes about anomalies:"
more creationist statements. outlining situation where there is (an obvious) contamination possibility.
"Still another evidence for problems with radiometric dating was given in a recent talk I attended by a man who had been an evolutionist and taken a course in radiometric dating. The teacher gave 14 assumptions of radiometric dating and said something like "If creationists got a hold of these, they could cut radiometric dating to pieces.""
ehm.. riddled with personal opinion? and WHAT assumption is might ask?
"On another point, if we can detect minerals that were not molten with the lava, as has been claimed, then this is one more reason why there should be no anomalies, and radiometric dating should be a completely solved problem. But that does not appear to be the case, at least (especially) on the geologic column."
WHAT??!?! so 1 minaral not melting will make ALL the dating methods suddenly flawless?? damm this is just....mindboggeling....
"I'm not claiming that anomalous results are being hidden, just that the agreement of a mass of results, none of which has much claim to reliability, does not necessarily mean much."
so instead of attacking the scientist. you attack the validity of the majority. a valididity that would, when it did not exist, not allow for anomolies to be made. since i have nothing to compare my far of date to.
"Picking out a few cases where radiometric dates appear to be well-behaved reminds me of evolutionary biologists focusing on a few cases where there may be transitional sequences. It does not answer the overall question. And as I said above, I'm also interested to know how much of the fossil-bearing geologic column can be dated by isochrons, and how the dates so obtained compare to others."
well lets look at it the other way round...hypocrit..
also i fear that this person has a very screwy understandign of what atransitional sequence is. given the fact that most of his sources are creationists sources...sources that lack in a lot if scientific credibility..
"Concerning K-Ar anomalies, here is a quote from Woodmorappe's paper cited above, p. 122:"
you know the drill...
overall it stands out that who ever wrote the article has take much care NOT to include the other side in the story, like the scientific journals. he leaves that for last. and it is a VERY old reference...1964...
1. Wikipedia is unreliable.
2. Talkorigins is the equivilent of an evolutionist AnswersInGenesis so because it's biased therefore content on talkorigins is null and void (?).
It's happened before: "In all the times I have seen evolution defenders argue their point, I have noticed something that is always the same.Why oh ehy do evolutionists always use the massively biased talkorigins site which is so pro-evolution it is untrue. It is like me defending creation and citing my source as drdino.com. You wouldn't accept that so please don't quote that rubbish at me. Please provide a more reputable source. And wikipedia can be useful for many things but the trouble is that it can be added to and editted by absolutely anyone and proves nothing. Please cite a scientifically respectable source. And I asked for evidence, not just statements that we then have to assume are true." -The user "Strawman" in this topic about 10 posts from the bottom.