Making use of the SAM bulk spectrometer to measure the abundance of three isotopes that result of cosmic-ray

Making use of the SAM bulk spectrometer to measure the abundance of three isotopes that result of cosmic-ray bombardment—helium-3, neon-21, and argon-36—Farley along with his colleagues computed that the mudstone at Yellowknife Bay has-been uncovered at area for 80 million decades. “All three belonging to the isotopes promote the same answer; all of them need …