Mantle question is quite reduced in uranium and you will thorium, which have only 0.004 ppm, when you’re crustal rock keeps step 1.cuatro ppm, centered on Richard Arculus inside a newsprint he shown during the Uranium Institute Middle-Term Meeting during the Adelaide, 1996 (pick for further advice as well as the article). Читать далее “A couple categories of magma and ramifications having radiometric relationships”