4 trends tracked about this subject — the full history, oldest to newest below.
A new study links the Grand Canyon's Great Unconformity — a gap of over a billion years in the rock record — to rising mantle material that erased vast layers of Earth's history.
Scientific coverage examines how Earth lost up to a billion years of geological history, known as the Great Unconformity.
A new study in Nature links the Great Unconformity — a gap of up to a billion years in Earth's rock record — to mantle convection that lifted continents before the Cambrian and later let them sink, preserving the erosion surface.
Scientists from the University of Wollongong may have solved the mystery of the Great Unconformity and the missing 1.2 billion years of geological history.