Many coral reef islands, or atolls, are created by water moving sand and gravel, piling it up into consecutive ridged layers. However, new research has uncovered a different type of island construction: storm-deposited boulders.
Many coral reef islands, or atolls, are created by water moving sand and gravel, piling it up into consecutive ridged layers. However, new research has uncovered a different type of island construction: storm-deposited boulders.