Workshop on Past and Present Solar Radiation : the record in meteoritic and lunar regolith material

Abstract

Addressed what was the extent to which asteroidal and lunar regoliths have collected and preserved, a record of the flux, energy, and compositional history of the solar wind and solar flares. The six central discussion topics were: Trapped solar wind and flare gases, tracks, and micrometeorite pits in regolith components; Comparison between lunar regolith breccias, meteoritic regolith breccias, and the lunar soil; The special role of regolith breccias and the challenge of dating their times of compaction; Implications of the data for the flux and compositional history of solar particle emission, composition, and physical mechanisms in the solar source regions, and the composition of the early nebula; How and to what extent have records of incident radiation been altered in various types of grains; Future research directions.