M
MLowe75
Guest
Yes,I am familiar with Dalrymple’s back pedaling when it comes to
potassium-argon dating. And to me, as a very simple mechanical engineer,
the failure of a method or instrument to yield accurate results tends to
mean the method is usually flawed. Extra argon in pillow lavas? Why
assume this is the only case where a daughter element is present in
unexpected amounts? It seems to me the method didn’t work when it had a
chance to be tested.
Please re-read what you have written here: we see if methods work
correctly, by testing rocks of known ages.
What you are essentially saying is something I completely agree with. Which
is, we can’t know if a method is accurate unless it is confirmed by
independent tests. K-Ar failed to pass a test. But it seems as if K-Ar is
beyond reproach unassailable, because there are no independently known ages
for rocks beyond a few thousand years. We can also use other methods -
uranium-lead for example - and they can validate each other.
We are somehow able to categorize suitable and unsuitable dates for rocks
whose ages we assume cannot possibly be verified independently, because
they are assumed to be millions or billions of years old. Yet we accept
them nonetheless. We take dates like 0.5 mya and discard them, because
they don’t fit in the geologic column, or they don’t conform to index
fossils found in the vicinity, whose ages were derived via radiometric
dating. We pretend that agreement between two unverifiable methods somehow
equates to some degree of accuracy, despite “scatter” and a need for
judicious selection.
Sometimes I am boggled as to how modern science, and the public’s view of
scientific matters, is incredibly critical in some areas, but positively
fatuous in other.
potassium-argon dating. And to me, as a very simple mechanical engineer,
the failure of a method or instrument to yield accurate results tends to
mean the method is usually flawed. Extra argon in pillow lavas? Why
assume this is the only case where a daughter element is present in
unexpected amounts? It seems to me the method didn’t work when it had a
chance to be tested.
Please re-read what you have written here: we see if methods work
correctly, by testing rocks of known ages.
What you are essentially saying is something I completely agree with. Which
is, we can’t know if a method is accurate unless it is confirmed by
independent tests. K-Ar failed to pass a test. But it seems as if K-Ar is
beyond reproach unassailable, because there are no independently known ages
for rocks beyond a few thousand years. We can also use other methods -
uranium-lead for example - and they can validate each other.
We are somehow able to categorize suitable and unsuitable dates for rocks
whose ages we assume cannot possibly be verified independently, because
they are assumed to be millions or billions of years old. Yet we accept
them nonetheless. We take dates like 0.5 mya and discard them, because
they don’t fit in the geologic column, or they don’t conform to index
fossils found in the vicinity, whose ages were derived via radiometric
dating. We pretend that agreement between two unverifiable methods somehow
equates to some degree of accuracy, despite “scatter” and a need for
judicious selection.
Sometimes I am boggled as to how modern science, and the public’s view of
scientific matters, is incredibly critical in some areas, but positively
fatuous in other.
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