The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino acids, nucleobases, and minerals known as evaporites—all elements of life’s ...

The earthly samples were evaporites formed in lake beds. Although the chemistry on Bennu’s parent asteroid was almost certainly different from that on Earth, the presence of sodium carbonate ...

Distinguish between longitudinal, linguoid/transverse and lateral bar forms. Petrology of evaporites and chemical sedimentary rocks. We will look at hand specimens of coal, chert, ironstone and ...