A constituent of lunar soils comprising glass-bonded aggregates, which consist of glasses and rock and mineral fragments welded together by glass. These aggregates form during the impact of micrometeorites into lunar soils. Their abundance in a lunar soil is an index of exposure to micrometeorite bombardment, and hence to soil maturity. The average size of agglutinates in mature soils varies, but tends toward a mean of 60 μm.
Subjects: Earth Sciences and Geography.