Evolution?

Radiometric Dating

Based on assumptions

Daniel J. Peppe, Alan L. Deino - Dating Rocks and Fossils Using Geologic Methods

Absolute dating methods determine how much time has passed since rocks formed by measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals.

Absolute dating methods determine how much time has passed since rocks formed by measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals.

Mainstream science organizations usually present radiometric dating methods as infallible.
But are the so-called

*absolute*dating methods free of assumptions? Are they absolute or are they relative?
The assumptions

John Woodmorappe - Mythology of Modern Dating Methods

A detailed survey of the following dating methods in actual use: K-Ar, Ar-Ar, Fission track, Rb-Sr, U-Pb, Pb-Pb, Sm-Nd, Re-Os, Lu-Hf, La-Ce, etc. Addresses and refutes the common defensive statements used by proponents of the dating methods. Special emphasis is on demonstrating that discrepant results are not the exception, but the rule, and that arguments used to justify so-called good dates are, when closely examined, arbitrary and without foundation.

A detailed survey of the following dating methods in actual use: K-Ar, Ar-Ar, Fission track, Rb-Sr, U-Pb, Pb-Pb, Sm-Nd, Re-Os, Lu-Hf, La-Ce, etc. Addresses and refutes the common defensive statements used by proponents of the dating methods. Special emphasis is on demonstrating that discrepant results are not the exception, but the rule, and that arguments used to justify so-called good dates are, when closely examined, arbitrary and without foundation.

This book is logically not liked by evolutionists. But the reality of the day is that any method based on assumptions can never offer absolute results.
All radiometric dating methods rely upon important assumptions usually not mentioned by evolutionists...

Sean D. Pitman - Radiometric Dating Methods (Assumptions)

Almost all of the different methods ... rely on these few basic assumptions:

- Beginning Conditions Known

- Beginning Ratio of Daughter to Parent Isotope Known (zero date problem)

- Constant Decay Rate

- No Leaching or Addition of Parent or Daughter Isotopes

- All Assumptions Valid for Billions of Years

- There is also a difficulty in measuring precisely very small amounts of the various isotopes

Almost all of the different methods ... rely on these few basic assumptions:

- Beginning Conditions Known

- Beginning Ratio of Daughter to Parent Isotope Known (zero date problem)

- Constant Decay Rate

- No Leaching or Addition of Parent or Daughter Isotopes

- All Assumptions Valid for Billions of Years

- There is also a difficulty in measuring precisely very small amounts of the various isotopes

Assumptions exclude certainty.

Calibrated against the geologic column

Wikipedia - Absolute dating

Absolute dates do not necessarily tell us precisely when a particular cultural event happened, but when taken as part of the overall archaeological record they are invaluable in constructing a more specific sequence of events.

Absolute dates do not necessarily tell us precisely when a particular cultural event happened, but when taken as part of the overall archaeological record they are invaluable in constructing a more specific sequence of events.

Science vs Evolution - Jean de Pontcharra: Are Radioactive-dating methods reliable?

Despite very impressive and powerful measurement and characterization tools, physical and chemical analysis methods, the dating of rocks by using radioactive elements depends on very basic assumptions. The significance and relevance of these assumptions have not been demonstrated. In fact, the first radiochronology assumptions were adapted to fit the stratigraphic scale used by geochronologists of the end of the 19th century.

Despite very impressive and powerful measurement and characterization tools, physical and chemical analysis methods, the dating of rocks by using radioactive elements depends on very basic assumptions. The significance and relevance of these assumptions have not been demonstrated. In fact, the first radiochronology assumptions were adapted to fit the stratigraphic scale used by geochronologists of the end of the 19th century.

Radiometric dating methods are calibrated against the
geologic column, which is a relative timescale based on
evolution theory and naturalism.
So the so-called

*absolute*radiometric dating methods themselves are not*absolute*. It is a misleading term which is much used by evolutionists in order to seemingly prove the unobservable old age of the earth.
K-Ar dating

National Geoscience Database of Iran - Stratigraphy

Potassium-Argon dating is the only viable technique for dating very old archaeological materials.

Potassium-Argon dating is the only viable technique for dating very old archaeological materials.

G. Brent Dalrymple -
Talk.Origins: How Old is the Earth (Radiometric dating)

The K-Ar method is probably the most widely used radiometric dating technique available to geologists.

The K-Ar method is probably the most widely used radiometric dating technique available to geologists.

The K-Ar method
is used to date strata containing ash from volcanic eruptions.
It is regarded as the most reliable dating method available after radiocarbon dating.

K-Ar calibration

Sean D. Pitman - Radiometric Dating Methods (Calibration of the Argon-Argon Dating Method)

What most people don’t realize, or at least don’t discuss, is that Ar/Ar method is not an absolute dating method. Let me emphasize again that this dating method is a relative dating method. In other words, it must be calibrated relative to a different dating method before it can be used to date materials relative to that other dating method.

What most people don’t realize, or at least don’t discuss, is that Ar/Ar method is not an absolute dating method. Let me emphasize again that this dating method is a relative dating method. In other words, it must be calibrated relative to a different dating method before it can be used to date materials relative to that other dating method.

New Mexico Geochronology Research Laboratory - K/Ar and 40Ar/39Ar Methods

In order for an age to be calculated by the 40Ar/39Ar technique, the J parameter must be known. For the J to be determined, a standard of known age must be irradiated with the samples of unknown age. Because this (primary) standard ultimately cannot be determined by 40Ar/39Ar, it must be first determined by another isotopic dating method. ... while it is often easy to determine the age of the primary standard by the K/Ar method, it is difficult for different dating laboratories to agree on the final age.

In order for an age to be calculated by the 40Ar/39Ar technique, the J parameter must be known. For the J to be determined, a standard of known age must be irradiated with the samples of unknown age. Because this (primary) standard ultimately cannot be determined by 40Ar/39Ar, it must be first determined by another isotopic dating method. ... while it is often easy to determine the age of the primary standard by the K/Ar method, it is difficult for different dating laboratories to agree on the final age.

Sean D. Pitman - Radiometric Dating Methods (Circular Calibration Methods)

Fission track dating is calibrated (the “zeta calibration”) using rocks of “known” ages. However, if these “known” ages are incorrect, then fission track dating that is based on these ages is also incorrect. Thus fission track dating is not an independent test that helps to verify the accuracy of other tests. The result is that radiometric dating in general is in danger of being based on circular reasoning.

Fission track dating is calibrated (the “zeta calibration”) using rocks of “known” ages. However, if these “known” ages are incorrect, then fission track dating that is based on these ages is also incorrect. Thus fission track dating is not an independent test that helps to verify the accuracy of other tests. The result is that radiometric dating in general is in danger of being based on circular reasoning.

The Potassium-Argon dating method has to be calibrated.
If it has to be calibrated, it can not be absolute. This goes for all dating methods.

K-Ar anomalies

G. Brent Dalrymple -
The Age of the Earth

The K-Ar method is the only decay scheme that can be used with little or no concern for the initial presence of the daughter isotope. This is because 40Ar is an inert gas that does not combine chemically with any other element and so escapes easily from rocks when they are heated. Thus, while a rock is molten, the 40Ar formed by the decay of 40K escapes from the liquid.

The K-Ar method is the only decay scheme that can be used with little or no concern for the initial presence of the daughter isotope. This is because 40Ar is an inert gas that does not combine chemically with any other element and so escapes easily from rocks when they are heated. Thus, while a rock is molten, the 40Ar formed by the decay of 40K escapes from the liquid.

Evolutionists usually present radiometric dating methods as extremely reliable.
However, that the assumptions of radiometric dating methods are not justified is confirmed by recent researches...

Sean D. Pitman - Radiometric Dating Methods (Inconsistencies and other Problems...)

It seems like rocks dating within one or two million years cannot be accurately dated by K-Ar techniques just because of the relatively wide ranges of error. However, can rocks that are tens or hundreds of millions of years be more accurately dated? Perhaps, if these rocks were in fact closed systems and were not subject to contamination by external argon. ... Investigators also have found that excess 40Ar is trapped in the minerals within lava flows. ... Many recent studies confirm the mantle source of excess 40Ar.

It seems like rocks dating within one or two million years cannot be accurately dated by K-Ar techniques just because of the relatively wide ranges of error. However, can rocks that are tens or hundreds of millions of years be more accurately dated? Perhaps, if these rocks were in fact closed systems and were not subject to contamination by external argon. ... Investigators also have found that excess 40Ar is trapped in the minerals within lava flows. ... Many recent studies confirm the mantle source of excess 40Ar.

Excess daughter isotope 40Ar leads to higher ages than is really the case.

Dating methods agree?

Sean D. Pitman - Radiometric Dating Methods (Different Dating Methods Agree)

It is often said that a great many dating methods, used on a single specimen, will agree with each other, thus establishing the accuracy of the date given. In reality, the overwhelming majority of measurements on the fossil bearing geologic column are all done using one method, the K-Ar method. Thus the agreement found between many dates does not necessarily reflect an agreement between different methods, but rather the agreement of the K-Ar method with itself (Especially noting that Dalrymple suggested that only K-Ar dating methods were at all trustworthy). I have seen no good double-blinded research studies that say otherwise. One would think that if this were a good science, then such studies would be done and published, but they are strangely lacking.

It is often said that a great many dating methods, used on a single specimen, will agree with each other, thus establishing the accuracy of the date given. In reality, the overwhelming majority of measurements on the fossil bearing geologic column are all done using one method, the K-Ar method. Thus the agreement found between many dates does not necessarily reflect an agreement between different methods, but rather the agreement of the K-Ar method with itself (Especially noting that Dalrymple suggested that only K-Ar dating methods were at all trustworthy). I have seen no good double-blinded research studies that say otherwise. One would think that if this were a good science, then such studies would be done and published, but they are strangely lacking.

Apparently there are not many scientific researches into the reliability of different radiometric dating methods used for checking each other.

Paradigm paralysis

Talk Origins - Radiometric Dating and the Geological Time Scale

If an inconsistent data point is found, geologists ask the question: "Is this date wrong, or is it saying the current geological time scale is wrong?" In general, the former is more likely, because there is such a vast amount of data behind the current understanding of the time scale... However, this statistical likelihood is not assumed, it is tested, usually by using other methods (e.g., other radiometric dating methods or other types of fossils), by re-examining the inconsistent data in more detail, recollecting better quality samples, or running them in the lab again.

If an inconsistent data point is found, geologists ask the question: "Is this date wrong, or is it saying the current geological time scale is wrong?" In general, the former is more likely, because there is such a vast amount of data behind the current understanding of the time scale... However, this statistical likelihood is not assumed, it is tested, usually by using other methods (e.g., other radiometric dating methods or other types of fossils), by re-examining the inconsistent data in more detail, recollecting better quality samples, or running them in the lab again.

That current understanding of the geological time scale is the result of 200 years of
evolutionary bias,
circular reasoning and the blind acceptance of unprovable
uniformitarianism and
naturalism within the world of
mainstream science.

Worldview againt worldview

David Plaisted - The Radiometric Dating Game

Tim Thompson - Kevin R. Henke: Comments on David Plaisted's "The Radiometric Dating Game" (Part 1)

David Plaisted - A Reply to Dr. Henke and Others

Tim Thompson - Kevin R. Henke: Comments on David Plaisted's "The Radiometric Dating Game" (Part 2)

David Plaisted - A Further Reply to Dr. Henke

Tim Thompson - Kevin R. Henke: Comments on David Plaisted's "The Radiometric Dating Game" (Part 3)

David Plaisted - Another Reply to Dr. Henke

David Plaisted - Reply Number 4 to Dr. Henke

Tim Thompson - Kevin R. Henke: Comments on David Plaisted's "The Radiometric Dating Game" (Part 1)

David Plaisted - A Reply to Dr. Henke and Others

Tim Thompson - Kevin R. Henke: Comments on David Plaisted's "The Radiometric Dating Game" (Part 2)

David Plaisted - A Further Reply to Dr. Henke

Tim Thompson - Kevin R. Henke: Comments on David Plaisted's "The Radiometric Dating Game" (Part 3)

David Plaisted - Another Reply to Dr. Henke

David Plaisted - Reply Number 4 to Dr. Henke

An interesting debate between a creationist and an evolutionist. This shows that creationists know what they're talking about and should be taken seriously.
This is something evolutionists not always do. It often has to do with dishonesty and arrogance.
Of course the main conclusion is that the unobservable past may very well not be as ancient as evolutionists claim and would like to believe.
Because the assumptions made are dependent on the worldview of the one making the assumptions.

Links...

John Woodmorappe - Mythology of Modern Dating Methods

Simon Kelley - K-Ar and Ar-Ar Dating

Science vs Evolution - Jean de Pontcharra: Are Radioactive-dating methods reliable?

Dan Stober - The strange case of solar flares and radioactive elements

Jenkins, Herminghuysen, Blue, Fischbach et al - Additional experimental evidence for a solar influence on nuclear decay rates

David Plaisted - Radioactive Decay Rates May Change

David Plaisted - More Bad News for Radiometric Dating

Conservapedia - Radiometric dating

Simon Kelley - K-Ar and Ar-Ar Dating

Science vs Evolution - Jean de Pontcharra: Are Radioactive-dating methods reliable?

Dan Stober - The strange case of solar flares and radioactive elements

Jenkins, Herminghuysen, Blue, Fischbach et al - Additional experimental evidence for a solar influence on nuclear decay rates

David Plaisted - Radioactive Decay Rates May Change

David Plaisted - More Bad News for Radiometric Dating

Conservapedia - Radiometric dating