Choose your theory:
Conspiracy theorists tell us the Moeraki Boulders are alien or dinosaur eggs either sent from space or washed up by the ocean.
Volcanic activity is a plausible explanation. According to this theory, they were shot out of an ancient volcano and Koekohe Beach is where they landed.
Science classifies them as septarian concretions. Accordingly, they were formed in ancient sea floor sediments 60 million years ago, during the early Tertiary period. Each may have started as a core of fossil shell, bone fragment, or piece of wood. Lime crystals in the sea gathered on the core over millions of years, then accumulated other minerals around it to make the boulder shape. Over time, the original mudstone seabed became uplifted and formed coastal cliffs. The captive boulders released as the cliffs eroded.
CLIMATE CHANGE EXPLAINED - “What’s your opinion about the climate change, mister President?” “........” “Mister President?” “I truly, TRULY believe there isn’t one .... but IF there was one .... well, it’s all the BIG BANG’s fault!!” 🙄 (Music: “Rhythm of the Rain,” The Cascades) 🎼 “Listen to the rhythm of the falling rain, telling me just what a fool I've been, I wish that it would go and let me cry in vain, and let me be alone again.”