Lost 'mega-escarpment' across ancient USA may explain Grand Canyon's missing billion years

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Who published it, and when

How it spread - 2 original reports

1. Tue, 18 August 2026

   1 report
   • Google News - Top Stories23:10first to report
     Lost 'mega-escarpment' across ancient USA may explain Grand Canyon's missing billion years

     Lost 'mega-escarpment' across ancient USA may explain Grand Canyon's missing billion years Phys.org Grand Canyon timeline rewritten by uranium dating Earth.com A discovery may explain the Grand Canyon’s missing billion years Courthouse News New study uncovers Grand Canyon's missing history Daily Echo

2. Wed, 19 August 2026

   1 report
   • Google News - Top Stories17:45
     Earth Is Missing a Billion Years of History. We Finally Know Why

     Earth Is Missing a Billion Years of History. We Finally Know Why ZME Science Lost 'mega-escarpment' across ancient USA may explain Grand Canyon's missing billion years Phys.org Grand Canyon timeline rewritten by uranium dating Earth.com Scientists May Have Found The Missing Piece Behind The Grand Canyon's Billion Year Gap StudyFinds North America Had A Continent-Spanning “Mega-Escarpment” A Kilometer High And It Might Explain The Grand Canyon’s Great Mystery IFLScience