# K-ar radiometric dating

As the K in the rock decays into Ar, the gas is trapped in the rock. So in both cases the Argon flows down the concentration gradient. The ratio of K to total K is constant. 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. However, dating mechanisms have their own set of assumptions that need to be realized. It provided a means by which the age of the Earth could be determined independently.

Then these rock samples are dated.

If you are having problems understanding the basics of radioisotopes techniques, such as. Internat Geol Rev ;9: The slope of this isochron, known as the Geochron, gives an age of 4. If a magma cools quickly on the surface of the Earth, some of the Ar may be trapped. The archeologist or scientist assumes that the date they receive is generally correct.

Thus, since we can write or and solve for t. However, this is an assumption that could be challenged. This gives us only a minimum age of the Earth. See the introduction to Radiometric dating techniques Page.

These flows had something that the other flows did not have. As dating any dating technique, there are some significant limitations.

The seventh assumption is one that scientists are doing their best to fulfill. Many text books say it is self-evident. The only sedimentary rock which can be dated is glauconite, but the results are not always considered reliable by evolutionists.

In the experiment, the Argon that was absorbed into the rock looked just like the normal radiogenic Argon that comes from K 40! It provided another source of heat, not considered by Kelvin, which would mean that the cooling time would have to be much longer.

The decay schemes are as follows. Before we start, lets look at the specific K-Ar dating assumptions.

Is the prevalent view held by the majority of scientists the only plausible way of approaching the problems of time? These older dating rocks give the kind of dates as expected by the scientific community. Thus we could tell whether the rock was derived from the mantle or dating be determining its initial Sr isotopic ratio as we discussed previously in the section on igneous rocks.

Secondly, Argon is usually a gas. Such a discussion might never be allowed in normal scientific circles because of the assumptions they choose to believe as being true. 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.

If the surrounding medium contained high Argon pressure, the molten rock would then accept Argon gas by allowing the Argon gas to reach equilibrium with its surrounding medium. The neutron emits an electron to become a proton. However, this contamination can match dating janam kundli be accounted for in the calculations.

However, if the degradation is by either electron capture or positron decay, then Argon 40 is produced. Both Potassium 39 and 41 are stable and accounts for Yet Potassium-Argon dates, for example, can easily go back to the time that evolutionists believe the earth began; 4, years ago 4.