A giant cliff that vanished billions of years ago may explain the mystery of Earth’s ‘missing’ billion years
- Representative Image of the Grand Canyon revealing two billion years of geological history and missing rock layers (AI-generated image)The Grand Canyon exposes roughly 2 billion years of Earth's geological history, but more than half of that record is missing.
- Geologists call the enormous gap the Great Unconformity, a boundary where rocks representing more than a billion years of geological time are absent.
- The mystery has persisted for more than a century, with scientists proposing ancient erosion, tectonic upheaval and glaciation as possible explanations.
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- Representative Image of the Grand Canyon revealing two billion years of geological history and missing rock layers (AI-generated image)The Grand Canyon exposes roughly 2 billion years of Earth's geological history, but more than half of that record is missing.
- Geologists call the enormous gap the Great Unconformity, a boundary where rocks representing more than a billion years of geological time are absent.
- The mystery has persisted for more than a century, with scientists proposing ancient erosion, tectonic upheaval and glaciation as possible explanations.
Sources: Times of India