Conspicuous clay ovoid in Nakhla Martian meteorite
New feature Article! A Conspicuous Clay Ovoid in Nakhla: Evidence for Subsurface Hydrothermal Alteration on Mars with Implications for Astrobiology, Elias Chatzitheodoridis, Sarah Haigh, Ian Lyon Astrobiology. August 2014, 14(8): 651-693. Open access article: download full paper from here (PDF) or, from here (Research Gate) See the abstract here.