There's a billion-year gap in Earth's geological history. A new study seeks to explain the mystery.

Much of our understanding of Earth's past is derived from stratigraphic records exposed in rock outcrops or recovered from drilled cores. These records span immense time intervals, from thousands to ...

Certain locations around the world appear to defy basic physical principles. At some of these sites, cars seem to roll uphill ...

3. 25 Facts About Geologic Time That Made Our Brains Hurt 4. How Do We Know? A Glimpse into Geologic Sleuthing 5. Our ...

The Great Unconformity is a major gap in Earth's geologic record. The missing layer between Precambrian and Cambrian rocks represents a gap of around a billion years of history. Among much debate ...

Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory ...

In 1869, John Wesley Powell was studying layers of rock in the Grand Canyon when he noticed an unconformity in the layers. Around a billion years were missing, and the problem turned out to be global.

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...

Beneath the ice of West Antarctica lie natural records of past climate variability, containing sediments deposited during warmer periods when the region was partly or entirely ice-free. An ...

A research team led by Prof. XU Yigang from the Guangzhou Institute of Geochemistry of the Chinese Academy of Sciences (CAS) and Prof. DENG Chenglong from the CAS Institute of Geology and Geophysics ...