Sentences with phrase «oxygen isotopes within»
The balance of oxygen isotopes within ozone are strikingly weird with enrichment of heavy isotopes through a physical chemical phenomenon first described by co-author Mark Thiemens, a professor of chemistry at UC San Diego, and colleagues 25 years ago.
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Stott and his colleagues used the isotopes of oxygen contained within the remnants of microscopic surface and deep - sea creatures to establish temperatures; they then used a radioactive isotope of carbon to date their age.
The researchers focused on isotopes or atomic variants of oxygen within these fossils.