K-ar dating problems, radiometric dating
And it's going to be in years because that's how we figured out this constant. And I'll just flip the sides here. However, this is an assumption that could be challenged. However, this contamination can easily be accounted for in the calculations. So we need to figure out what our initial amount is.
These flows are on the surface of the earth, where the Argon is able to escape into the atmosphere. This suggests to me that the rock is unable to degas because of the surrounding pressure. We might also expect that hornblende and biotite, the most reliable types of rocks from an evolutionary perspective, would have been tested. So since the time of the flood, there is no evidence that there has been any change in half-lives of radioactive materials.
We saw that in the last video. In addition to the above limitations of science, historical science is limited by the fragmentary nature of the artifacts it is able to find.
These assumptions were originated within an atmosphere of long age preexisting ideas. If in fact such an answer were found, it would be quickly dismissed. This includes the Paleozoic, Mesozoic, and Cenozoic layers.
These same problems appear in all dating methods across the board. From this experiment it sounds like the Argon can go either way. If you did research on the subject you should realize that those tests where Argon gas pressure is put onto a heated mica are useless in anything but a laboratory. The other data is eliminated. It is always possible that these kinds of experiments were done, but the results never worked out, thus it was never published.
Later, when we start discussing the K-Ar dating technique from a Creationary perspective, we will see that this reseting of the clock is a major issue. Since K-Ar dating is so widely used, we might expect that many experiments would have been done to see how well Argon is released under various heated conditions. It has been confirmed as a valid dating tool by other radiometric dating techniques which all produce similar ages. Many evolutionary scientists know radiometric dating does not work properly. Dating mechanisms such as Carbon, work within the creationary paradigm without the need of having a change in half-lives.
When the concentrations of the various K isotopes are measured, the results are always the same. The data can go either way. That is done by heating the rock in a vacuum.
And now, we need our drum roll. So, something inhibited Argon from coming out of these rocks. Research in Hawaii shows that the lava flows on the surface of the ground are able to loose essentially all of the Argon. So I'll write it over here.
On the contrary they wouldn't need to falsify anything. First of all, Argon is inert. So k is this thing right over here.
Were the rock layers laid down in a vacuum? This is because there is no time for any new Argon to form, the only Argon present in the rock would be that which failed to get out of the rock when it was molten. And we go into more depth and kind of prove it in other Khan Academy videos. What they found was that the muscovite absorbed large quantities of Argon. The modern form is considered to have been buried much later in spite of the fact that the specimens are found in the same level.
So this should give us our t in years. But there is no known mechanism to explain or predict the increased rate of radioactivity. They are looking for answers that would fit their present model. The fourth assumption is probably satisfied for most samples. Rather, what we have is weight of interpretation!
So the cooling and crystallization of molten rock occurs below the surface of the ground. We have indications that the very same thing happened here as we saw earlier in the muscovite experiments. That gives us that number.
The sixth assumption is also fairly secure. Historical data can be so inconclusive that a host of positions is possible from almost any set of data that is collected. These are the areas that deal with the here and now. There is no proof for either position. This is how science normally works.
They think of the long age scenario of evolution as being fact. Only when specific data comes that either substantiates or falsifies the previously held assumption, can it be known if the thinking was originally correct. Let me write it over here in a different color. And so this is the same thing.
And usually, these aren't measured directly, and you really care about the relative amounts. The problem is only limited by money, ingenuity, and the technical difficulties that have to be surmounted. Assumptions throughout the scientific process are extremely important because they must hold the facts together. It has as its basis of understanding, various assumptions which concern the conditions of the Earth for hundreds of millions of years. This is probably the assumption that scientists make when they choose to present filtered data in a scientific paper.
The process can continue until some answer to the problem is understood. Within the Creationary flood model, we also might expect layers to be made underwater.
Such a discussion might never be allowed in normal scientific circles because of the assumptions they choose to believe as being true. There are other factors which might not allow the Argon to coming out of the rock as well. And what we can do is we can multiply the negative times the top.
There is such a strong consensus of opinion on K-Ar dating and other similar topics that deal with the history of the Earth that alternative viewpoints are probably viewed as being counterproductive. So if there are multiple heatings of the rock, the K-Ar dating process may give the researcher a number that is not what the researcher expects to find. Before we start, dating msn personal lets look at the specific K-Ar dating assumptions.
Why is it that one type of date is used one time and not at another time, is not discussed in the paper. Unfortunately, with fragmentary data, the artifact that might falsify a theory is extremely hard in coming or it could easily be overlooked. What it does, is to tell you how long ago the rock was reset, or set to zero.
So the idea that the Argon does not come out of the rocks very well, when water pressure is surrounding the rock, is extremely interesting! If there is no place for the Argon to go as the rock is cooling, the rock will probably retain its Argon.
So that's this numerator over here. Plutonic rocks are rocks are rocks that have solidified below the ground.