Limestone

Environment

Limestone and iron reveal Western Australia’s mysterious extreme rains 100,000 years ago

The Conversation by Milo Barham, Andrei Schmutz, John Alan Webb, Kenneth McNamara, Martin Danisik, and Matej Riper Credit: CC0 Public Domain Almost one-sixth of the Earth’s surface is covered in otherworldly landscapes with an unfamiliar name: karst. These landscapes are like natural sculpture parks, with dramatic formations dotted with caves and rock towers slowly carved by water over thousands of…