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By studying the stable carbon isotope ratio (13C/12C) in this matter, scientists can uncover important clues about how life’s building blocks were created. This method has been used on Mars ...

For example, most carbon (≈ 99 %) has 6 protons and 6 neutrons and is ... produces variation in the stable isotope ratio of different element pools and b) establishes an isotope signal that can ...

Thermo MAT 253 Plus for high-precision, dual inlet analysis of multiply-substituted (“clumped”) isotopologues of CO2, with applications in geology, paleontology, oceanography and atmospheric sciences.

This measurement provides carbon, oxygen and “clumped” isotope ratios for carbonate minerals, which enables us to reconstruct the temperature at which the carbonate formed, along with information ...

Deuterium ratios vary strongly with weather conditions ... Linking winter and summer events in a migratory bird using stable carbon isotopes. Science 282, 1884-1886 (1998). Minami, H.

Naturally-occurring stable isotopes of water and other substances are used to trace the origin, history, sources, sinks and interactions in water, carbon and nitrogen cycles. Stable isotopes can also ...