The rock cycle

Incipient fossils

Calcified moss. Djupvik (Öland), Sweden; 17 June 2016.

The algae in warm water run-off become rapidly mineralized. Geysir (Haukadalur Valley), Iceland; 23 July 2014.

Lichens partly embedded in pine resin. Mont Aigoual (Gard & Lozère), France; 13 July 2015.