Application of stable isotope measurements to the study of the origin and history of meteorites

摘要

One of the subjects of the research involves the isotopic analyses of hydrogen and carbon extracted from the SNC meteorites. These analyses describe the history of CO2 and H2O on Mars. The isotopic composition of hydrogen is of particular interest because it reflects the possible history of water on Mars as it is affected by the known degassing and loss of H2O that occurs in the atmosphere of Mars. The second scientific effort deals with the isotopic analyses of hydrogen, carbon, and nitrogen in organic molecules extracted from meteorites to determine the origin and possible mechanisms of the formation of these compounds.