I'm not convinced they are:
SOURCE
WOW... you are now getting your information from Pravda?? Have they ever reported anything other than propaganda? Are you kidding me??????
Here is a facinating snippet from the link you provided:
"For example, many times one radiometric dating method will give a vast difference in age from another radiometric dating method used on dating the same rock! Radiometric dating methods have also been severely faulty when tested with the actual historical age of certain rock. For example, Hawaiian lava flows that were known to be no more than two centuries old were dated by the potassium-argon method to be up to three billion years old! (Science 141 [1963]: 634).
The reason for these huge discrepancies is that these methods are based on assumptions that no major changes have occurred in the earth's atmosphere in the past which could have affected the initial amounts and even the rates of decay of the substances involved (Industrial Research 14 [1972]: 15). If, for example, a world-wide flood the Bible describes in Genesis had actually occurred then it would have, indeed, altered the initial conditions so as to make radiometric dating less than an exact science, to say the least. The Carbon -14 dating method has been known to have fifty percent accuracy, but it is only accurate up to thousands (not millions or billions) of years and can only be used on things that were once living."
Anyone see any problems with this junk reporting?
1. The cited references are how old? 1963 and 1972... how about some from 1924?
2. The "huge discrepancies" claimed are false.
Here is an example from Wikipedia:
Age of the Earth - Wikipedia, the free encyclopedia
Nevertheless, ancient Archaean lead ores of galena have been used to date the formation of Earth as these represent the earliest formed lead-only minerals on the planet and record the earliest homogeneous lead-lead isotope systems on the planet. These have returned age dates of 4.54 billion years with a precision of as little as 1% margin for error.[28]
Statistics for several meteorites that have undergone isochron dating are as follows:[29]
1) St. Severin (ordinary chondrite) a. Pb-Pb isochron - 4.543 +/- 0.019 GY b. Sm-Nd isochron - 4.55 +/- 0.33 GY c. Rb-Sr isochron - 4.51 +/- 0.15 GY d. Re-Os isochron - 4.68 +/- 0.15 GY
2) Juvinas (basaltic achondrite) a. Pb-Pb isochron ..... 4.556 +/- 0.012 GY b. Pb-Pb isochron ..... 4.540 +/- 0.001 GY c. Sm-Nd isochron ..... 4.56 +/- 0.08 GY d. Rb-Sr isochron ..... 4.50 +/- 0.07 GY
3) Allende (carbonaceous chondrite) a. Pb-Pb isochron ..... 4.553 +/- 0.004 GY b. Ar-Ar age spectrum ..... 4.52 +/- 0.02 GY c. Ar-Ar age spectrum ..... 4.55 +/- 0.03 GY d. Ar-Ar age spectrum ..... 4.56 +/- 0.05 GY
3. C-14 is indeed only used on samples less than 60,000 years old. That's why geologists use other methods for older samples!
And another one:
"Furthermore, evolutionary geologists believe that the lowest layers contain only fossils of simple organisms while the higher layers contain only fossils of complex organisms. This, according to him/her, is evidence that complex organisms evolved from simpler ones over many millions of years. As a result of this view, the evolutionary geologist dates fossils according to the layer of rock in which they are found and, in turn, dates rocks according to the type of fossils they contain (circular reasoning!). Thus, the evolutionary geologist simply assumes that rocks which contain fossils of simple organisms must be very old (because of his/her assumption that those organisms evolved first) while the rocks containing fossils of complex organisms must be younger (because of his/her assumption that those organisms evolved more recently) even when there is no actual physical differences between the rocks themselves."
Any problems with this junk-reporting?
1. Do geologists really believe that the lowest layers
only contain simple organisms while the higher layers contain
only complex organisms? Of course not! Bacteria are found through out the geological column! The problem for Pravda and creationists that cite Pravda is that
only simple life forms are found in the lowest and oldest layers.
2. No geologists assumes that more complex fossils indicates a younger age for the rock they are in (see above, as simple organisms are found everywhere). While, Index fossils are used to get an approximate date for certain strata, this has nothing to do with "assumptions." In fact, index fossils were used before evolution was accepted by biologists (not something that most geologists care about anyway) because certain strata
are associated with specific species of fossil organisms. They didn't know why before evolution, but now we understand why because of evolution. Again, these are very specific species, and it has nothing to do with their complexity. And what the heck is an "evolutionary geologist" anyway?
Pravda should stick to
this type of hard-nose reporting:
http://english.pravda.ru/photo/report/fashion-1043/