mseagerthomas
Calcareous algae
Deliberate deposit of calcareous algae at Ahu Heki'i 2, Rapa Nui. Calcareous algae forms under water. On Rapa Nui, it is frequently found in terrestrial contexts, which it could not have reached naturally. Since it has no known functional uses, it is assumed to have been imported into these locations deliberately for decorative and/or ritual reasons. Concentrations are often found at ahu, such as Ahu Heki'i 2 shown here.
Calcareous algae
Deliberate deposit of calcareous algae at Ahu Heki'i 2, Rapa Nui. Calcareous algae forms under water. On Rapa Nui, it is frequently found in terrestrial contexts, which it could not have reached naturally. Since it has no known functional uses, it is assumed to have been imported into these locations deliberately for decorative and/or ritual reasons. Concentrations are often found at ahu, such as Ahu Heki'i 2 shown here.