The degree to which the chondrite has been altered is indicated by an integer between 1 and 7. Their orbits are perturbed by the gravity of other bodies in the Solar System and by the Yarkovsky effect. Various dynamical groups of asteroids have been discovered orbiting in the inner Solar System. Distances from sun are to scale, object sizes are not. The high metal, low oxygen content for enstatite chondrites suggests that these meteorites may have originated in the inner Solar System.Īlthough their primary composition matches that of the solar nebula, the chemical and isotopal composition of chondrites has been altered by secondary processes. A map of planets and asteroid groups of the inner solar system. This is in contrast to ordinary and carbonaceous chondrites in which iron is mostly present as oxides and tied up in silicates. The main elemental constituent of Enstatite Chondrites is iron in its metallic or sulfide state.Their parent asteroids are thought to have formed in the inner asteroid belt. Ordinary Chondrites also contain oxidised and volatile elements, but to a lesser degree than the carbonaceous chondrites.With the highest proportion of volatile elements, they are thought to have originated from asteroids accreted at relatively large distances from the Sun. The Grand Tack model places 1.3× 103 M of S-types asteroids in the belt. They can contain up to 20% water by weight, as well as substantial amounts of carbon (present mainly as organic compounds such as amino acids) and oxidised elements. The orbital configuration of the Asteroid Belt is believed to have been.
Specifically, chondrite types 1 and 2 have been chemically altered in the. Carbonaceous Chondrites are the most pristine, showing no evidence of ever having been heated. teorite falls, cannot be matched with the typical reflectance spectra of any common asteroid taxonomic type (and in particular of S-types, most abundant in. Their parent asteroids are thought to have formed in the inner asteroid belt.These compositional variations allow chondrites to be sub-divided into three main groups: Many chondrules are also visible embedded in the object. A chondritic meteorite discovered in Antarctica.