potassium argon dating is useful for determining the age of

Dating with 39 Ar and 40 Ar depends upon the fact that the 39 K can be bombarded with neutrons in a nuclear reactor to produce an amount of 39 Ar which is proportional to the potassium content of the sample. Reversed polarity is when the magnetic "north" is near the geographic south pole. It relies on the fact that potassium K and argon Ar are both radioactive elements. Hey foundation , Thank you so much for the support and comment, when it comes to science , the beauty of it , is that it opens up conversations between individuals that lead to further investigations which thereafter result in the facts being documented so that other individuals may refer to these findings. For potassium, rocks that are younger than , years don't produce enough decay to be accurately measured due to the long half-life. Dating methods like thermoluminescence , optical stimulating luminescence and electron spin resonance , measure the accumulation of electrons in these imperfections, or "traps," in the crystal structure of the material. This technique has established a known sequence of reversals from dated layers found all around the world.

POTASSIUM ARGON DATING IS USEFUL FOR DETERMINING THE AGE OF / janiceclark.net

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