Some Basic Assumptions of Radiometric Age Dating
It is important for us to understand some of the basic assumptions
in this field of radiometric age dating.
- First, such studies presuppose that the Big Bang Theory is
correct, even though it cannot be demonstrated in the
laboratory.
- Second, such studies assume that at the very beginning of the
earth, the parent compound being studied was in 100% pure form
without any daughter elements being present. For example,
they would assume that in the Uranium-Lead dating, there was
only uranium and no lead when the earth began.
- Third, they assume that within any sample, neither uranium or
lead has been added or depleted to the sample. In other
words, they assume uniform conditions.
- Fourth, they assume that radiometric dating of meteorites
should give more reliable dates as they were not subject to
mixing as the earth crust is.
In the absence of these assumptions, radiometric age dating
would not have meaning. Unfortunately, none of these
assumptions can be proven.
The Supposed Age of the Earth
Modern geologists and geophysicists tell us that the age of the earth is
about 4.54 billion years, and they base this on radiometric age dating
of meteorite material. The say this age is consistent with the
ages of the oldest known terrestrial and lunar samples.
1
Of course, this is given to us by some really intelligent people.
However, I bet they cannot tell me what they ate for supper 4.54 years
ago! Jesting aside, we need to crawl down the gullet of this
branch of science, just as we will do with the theory of evolution, to
try to discover its assumptions, accuracy and dependability.
You may ask why I distrust science since I am a physician.
I suppose I distrust it because I am a physician. Medicine is a
vigorous and demanding applied science, and I have learned that a
researcher's bias can make the conclusions from his/hers research very
misleading. I have learned that the financial interests of drug
companies can trump the well-being of patients, and that both physicians
and patients can be deprived of needed information, and even
purposefully given false information for the sake of the shareholders' bottom line. I have learned that what is true today
for a condition or treatment may be passé tomorrow, and that one
person's science will be viewed as ignorance by another person's science
in just a matter of years.
No, I do not hallow the halls of science. I know that medical
researchers must be blinded, that patients must be blinded, that the
study must be placebo-controlled, that the subjects must be randomized,
and that such a study must be confirmed by other similar studies with
similar methods, or I
cannot fully trust the information. I would rather see a meta-analysis
of such studies before making a conclusion. Yet I know that
whatever conclusion I arrive at today will still be questioned some time
in the future. Science is never the
final
answer to anything. Its results are always partially true and
partially false, but one cannot know which is true until the passage of
time. We are always arriving, but never quite there, regardless of
the safeguards. When I went to medical school, my professors said
that at least 50% of the knowledge they taught would be proven incorrect
in the future, but they just didn't know which 50% it would be! I
thought they were jesting, but they were not far wrong in retrospect.
If medical science demands so many controls, what about earth sciences?
How do you blind a geologist or a geophysicist so as to nullify
their bias in the research? Do they say they are unimpassioned,
that they only care for the evidence, and so they need no blinding? That
should tell you their bias is extreme and they don't even realize it.
How do you nullify the effect of a geologist's or geophysicist's sponsor?
Frequently both money and political interests skew conclusions.
At times a societal imperative could dictate the conclusions. But
these things will never produce absolute truth, but only half-truths and
even purposeful lies.
As an example of why I have such reservations in regard to scientific
analyses and pronouncements, let us move on to look more critically at the radiometric age dating science.
Recently I have been studying the confusing chronology of ancient Egypt
in the 1st and 2nd millenniums B.C.. I was hoping that radiocarbon
dating of some of the pyramids in Egypt might furnish me with specific
and objective anchors for chronology purposes. Radiocarbon dating
is supposed to be reasonably accurate, and in 2008, calibrated C-14
results were supposedly accurate within
±40 years
for specimens up to 10,000 years old.2 However,
when I found the results of Bonani et. al., I was amazed at the very
large upper and lower limits for the data from two of the pyramids.
3
In the online PDF version of their article published in
Radiocarbon
in 2001, it is clear that they employed a formula that allowed them to
ignore points of data that were too far from the mean, and this was
based on the assumption that the data was not representative of the
site.
4 They explained their willingness to exclude that
data on the rationale that these outliers represented "old wood" that
was used at the construction site, i.e., wood that was several hundred
years old when it was used to construct the pyramids. I was amazed
at this assumption. Since wood for daily cooking would have been
urgently needed by every Egyptian household on a daily basis in that desert land,
and since the population knew exactly where such wood could be found
along the Nile and the delta, it is inconceivable to me that any wood
could have laid around for hundreds of years before being used.
Therefore, I question their formula to exclude data that represented
"outliers" to them as I cannot accept their rationalizations regarding
"old wood."
Under any other circumstances, such data would imply that something is
drastically wrong with the methodology being used. For example, in
the medical field, laboratory testing is carefully regulated by the
College of American Pathologists (CAP). Individual laboratories
must keep a constant watch on the results of their tests to make sure
they recognize any shifts or trends. In general, if results show a
two standard deviations from the mean, the laboratory must immediately
take action. This might mean getting new reagents from a different
supplier and repeating the analysis on reserved frozen samples of blood.
If the laboratory continues to demonstrate two standard deviations from
the mean in their results, they must stop performing that test and send
any such requests to another laboratory. In addition, CAP demands
proficiency testing for laboratories. If a laboratory cannot
demonstrate proficiency on the CAP tests, they may not run those tests
until they can show correction in methodology and results. In
certain fields, such as blood banking, there is a ZERO tolerance for any
error on CAP testing. Clearly these stringent regulations are
necessary to protect the health of patients. However, even these
safeguards in the medical laboratory arena do not fully protect the
patient. Many tests can now be run simultaneously on the same
blood specimen. These panels, however, may have errors in 10% of
their values. This may result in missed diagnoses, and also in
erroneous diagnoses. Both of these types of errors complicate the
treatment of patients.
The point I am trying to make is this: the field of medical laboratory
science is rigorous and strict. And such demanding and exacting
methodology is absolutely necessary for correct diagnosis and treatment
of sick people. However, such exacting methodology makes the earth
sciences fields look rather careless when it comes to the supposed age
of a pyramid or the earth. Woodmorappe has retrieved and logged the numerous
results of radiometric age dating of the earth. He summarizes these as follows:
...isotopic dates from the earth's crust span a considerable range--from
negative values to ones in excess of 10 billion years. The vast
majority of dates, however, fall within the range of a few million years
to about 2.5-billion years.5
The first thing we must note is the enormous range involved
here. First, some of these published values for the age of the
earth are NEGATIVE numbers (which means that the earth is yet to
be born). Second, some of the values are "older than the
earth." Third, the majority of these studies
do not support a date of 4.5 billion years. Clearly we
have major problems with shifts and trends that would
indicate methodological problems with significant errors
and/or outliers for the data.
Woodmorappe also attempted to account for any bias for a
young earth in this data by using lognormal distributions,
and found the median age of the earth from this data to be
141 million years with the 1st standard deviation of
52.5-380 million years, the 2nd standard deviation 19.5
million-1.02 billion years, and the 3rd standard deviation
7.24 million-2.75 billion years. The proposed
"consensus" value for the age of the earth of 4.5 billion
years is substantially greater than 3 standard deviations
from the median, whether the data is examined in a
short-running log normal or long-running log normal
analysis.
6
Therefore, it appears that the radiometric dating of the earth is
problematic, perhaps beyond repair. Therefore, it now appears that
these scientists have turned to meteorites in order to date the earth,
assuming that meteorites should have the same beginning date as the
earth
according to the Big Bang Theory.
Most geological samples from Earth are unable to give a direct date of
the formation of Earth from the solar nebula because Earth has undergone
differentiation into the core, mantle, and crust, and this has then
undergone a long history of mixing and unmixing of these sample
reservoirs by plate tectonics, weathering, and hydrothermal circulation.7
However, it remains to be seen whether this source will really reveal
all that is hoped. What is the source of meteorites? How do
we know that they did not come from somewhere else where similar
problems existed? Can we assume that data will not be excluded
because it doesn't match the scientist's preconceived notions?
That has never been a safe assumption in any branch of science.
So what is the age of the earth? The Bible doesn't specify, but
does appear to include the creation of heaven and earth in the six days
of creation (Ex 20:11). In fact, with all the disagreement and the
obviously serious methodological problems in the scientific community, I
must conclude that an objective answer does not abide there. My
preference is to keep the Bible as my reference for beginnings. It
makes makes much more sense than a pseudoscientific range of less than
zero to 10 billion years!