Sentences with phrase «different noble gases»

Because different noble gases move at various speeds through rock and water, the proportions present revealed that although the gases had come from deep underground, they had arrived directly rather than percolating through layers of rock and water (PNAS, DOI: 10.1073 / pnas.1322107111).

Not exact matches

Professor Mukhopadhyay continued «The geochemistry indicates that there are differences between the noble gas isotope ratios in different parts of Earth, and these need to be explained.

Greg Holland of the University of Manchester, UK, and colleagues have arrived at a different theory after collecting samples of the noble gas krypton from several hundred metres beneath New Mexico.

The researchers know these particular Buckyballs are extraterrestrial because the noble gases trapped inside have an unusual ratio of isotopes, atoms whose nuclei have the same number of protons but different numbers of neutrons.

Researchers at the University of California, San Diego decided on a different model — they measured the ratio of noble gases in the atmosphere, which are in direct relation to the ocean's temperature.