Christmas Island lies around 217 miles (about 350 kilometers) from Indonesia, while mainland Australia is nearly five times as distant. But if you dig into the rocky base of the island, you’ll find materials traceable to large continents.
How…

Christmas Island lies around 217 miles (about 350 kilometers) from Indonesia, while mainland Australia is nearly five times as distant. But if you dig into the rocky base of the island, you’ll find materials traceable to large continents.
How…