Scientists are floating a new way to explain a geological feature called the Great Unconformity, where the record of a billion years is just missing from between the layers of rock. Or, to be more ...

The geologic record is exactly that: a record. The strata of rock tell scientists about past environments, much like pages in an encyclopedia. Except this reference book has more pages missing ...

The rocks above the Great Unconformity are about 520 million years old, from the Cambrian period, and are full of marine life, leaves, and reptile footprints; the rocks below are about 1.4 to 1.8 ...

Studying layers, and where these layers merge, can tell us about local geology as well as big events in our planet's history, such as the time it rained for around 2 million years.Sometimes ...

Jensen and Ault report their findings in the journal Geology. "Unconformities in the rock record are like missing chapters in ...

Scientists use martite crystals to date Earth's missing rock record, revealing parts of the Great Unconformity formed 1.4 billion years ago—rewriting geology.