Tag Archive for 'Smectite'

This schematic illustrates the progressive alteration of iron-rich rocks on Mars as the rocks interact with water containing carbon dioxide from the atmosphere. Image credit: Joshua Murray & Oliver Jagoutz, doi: 10.1126/sciadv.adm8443.

Early Martian Atmosphere Could Be Locked Up in Planet’s Clay Surface

Sep 27, 2024 by News Staff

Geological observations of Mars indicate a dense early atmosphere ranging from 0.25 to 4 bar of carbon dioxide. But 3.5 billion years ago, the Martian...