Olga Pravdivtseva

Olga Pravdivtseva

Research Associate Professor of Physics
PHD, Vernadsky Institute, Russian Academy of Sciences
MS, Tbilisi State University, Georgia
research interests:
  • Cosmochemistry
  • Early solar system chronology

contact info:

mailing address:

  • Washington University
    CB 1105
    One Brookings Drive
    St. Louis, MO 63130-4899

Olga Pravdivtseva's research focus has been in the formation and evolution of the early solar system. She is involved in high-precision noble gas mass-spectrometric study of extraterrestrial materials and uses noble gas isotopes as tracers of nuclear processes occurred in the nascent solar system.

Pravdivtseva is most heavily involved in I-Xe dating of early solar system events recorded and preserved by various meteoritic components. The I-Xe chronometer is based upon the decay of now-extinct 129I, produced in r-process nucleosynthesis in supernovae, and is capable of providing high precision closure ages, often within 10,000 years, of minerals that formed 4,600,000,000 years ago. High temporal resolution of I-Xe chronometer allows deciphering details of aqueous alteration and thermal metamorphism in various meteoritic components and mineral phases, estimating the cooling rates of iron meteorites, and as a result, reconstructing the evolution of the meteorites parent bodies.