On 5/6/2012 10:03 PM, Mr.Dunsapy wrote:
>> --------------------------------------------------------------
>> RECENT LAVA @ 22M, C.S.Nobel& J.J.Naughton, Hawaiian Inst. of
>> Geophysics, "The radiogenic argon and helium contents of three basalts
>> erupted into the deep ocean from an active volcano (Kilauea) have been
>> measured. Ages calculated from these measurements increase with sample
>> depth up to 22 million years for lavas deduced to be recent. ...these
>> lavas are very young, probably less than 200 years old. The samples, in
>> fact, may be very recent...", Science, Vol.162, p.265
>> --------------------------------------------end quoted part
>> Anything more recent than 1968 on this issue? There has been quite a bit
>> of work in the 44 years since this article came out.
-----------------------------------------------begin Mr. D's quote:
> We were told the scientists were correct then, but now it seems they
were not. What will the scientists say 50 years from now, about the the
scientists of today? Do you see the problem, when do you jump in and say
they finally have it correct?
> So really, if you want the actual answers, it is never safe to go
> with
the scientists. Because they never know for sure. They also say they
don't prove things. And may never be able to prove how life started on
it's own.
> The other problem is that they have no idea what may have happened
> to
change readings in the past. It is not like anyone can check this out.
-------------------------------------------------end Mr. D's quote.
Well, we actually can check this out. It has been done:
"Claim CD013:
Potassium-argon dating of rocks from lava flows known to be modern gave
ages millions to billions of years older.
Source:
Morris, Henry M., 1974. Scientific Creationism, Green Forest, AR: Master
Books, pp. 146-147.
Response:
Argon may be incorporated with potassium at time of formation. This is a
real problem, but it is easily overcome either by careful selection of
the material being dated or by using 40Ar/39Ar dating instead of K-Ar
dating.
In the case of the claim about recent lava yielding dates that are
millions to billions of years old, H. M. Morris (1974) misstated the
facts concerning these "anomalous" dates as published in Funkhouser and
Naughton (1968). The main misstatements of fact by Morris are as follows:
It was not the lava that was dated, but inclusions of olivine, called
"xenoliths", present within the lava. These gave anomalously old age
because they contained excess argon that the enclosing lava did not.
Morris failed to mention that the lava matrix without the xenoliths was
dated and found to be too young to date using potassium-argon.
(Funkhouser and Naughton [1968, 4603], stated that the matrix rock "can
be said to contain no measurable radiogenic argon within experimental
error.") This is consistent with the recent age of lavas and the state
of the art of K-Ar dating at that time. The presence of excess argon was
only a problem for the xenoliths but not for the lava containing them."
http://www.talkorigins.org/indexcc/CD/CD013.html
Or:
http://tinyurl.com/7n3mrkw
IOW, Morris got it wrong, apparently on purpose; and the scientists who
originally did the dating made the correct observations at the time.
Unhappily for you, it *is* possible to know things.
