Testing models for the compositions of chondrites and their components: III. CM chondrites

In continuation of our comprehensive study of the carbonaceous chondrites, we here present data for the CM chondrites. Our study's aim is to determine the abundances and the average elemental compositions of the major and minor chondritic components. The overarching goal has been to explore the fundamental question of whether chondrules and matrix are complementary, i.e., genetically related, or if these major chondritic components evolved separately before accretion as in the four-component model.