The chemistry of the rock layers reveals remnants of the meteor itself, which was a primitive type of space rock called a carbonaceous chondrite. It would have measured between 23 and 36 miles (37 ...

One example is a carbonaceous chondrite (a type of meteorite), also known as CAI in Allende. Scientists believe these were the very first things to become solids after the sun was first formed.

This study compares the geochemistry of chondrules in the carbonaceous chondrite Allende to that of terrestrial komatiite and basaltic komatiite samples from the Archean eon. This comparison provides ...

I am unravelling the history of an unusual group of carbonaceous chondrite meteorites that are believed to be similar to a certain group of water bearing asteroids; two of which are the targets of a ...