Cosmic-Ray Exposure Ages of Meteorites

摘要: The concept of a cosmic-ray exposure (CRE) age for meteorite is based on simple but useful picture evolution, the one-stage irradiation model. CRE ages have implications several interrelated questions. From how many different parent bodies do meteorites come? How well represent population their source region? distinct collisions each body created known type? often collide? big and energetic were that produced meteoroids? What factors control meteoroid orbits evolve through time? This chapter touches these questions as it examines data. In recent years, also become important interpreting small variations in abundances stable isotopes.