Great Unconformity: 1.2 Billion Years of Earth's History Erased

Great Unconformity: 1.2 Billion Years of Earth's History Erased. The Great Unconformity spans continents and wiped out 1.2 billion years of history Over a quarter of Earth's entire history was erased by erosion This geological gap raises questions about why human history would be more complete

The Great Unconformity is one of geology's most mind-blowing puzzles. Across continents, rock layers sit directly on top of each other with a staggering 1.2 billion years completely missing between them. That's over a quarter of Earth's entire history wiped out by erosion. Researchers are still debating what caused such dramatic, worldwide loss of the geological record.

Key Facts

• The Great Unconformity spans continents and wiped out 1.2 billion years of history
• Over a quarter of Earth's entire history was erased by erosion
• This geological gap raises questions about why human history would be more complete
• Rock layers sit directly on top of each other with massive chunks of time missing in between

Source: We’re Probably Wrong About Human History by Michael Button