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Sea level as a metronome of Earth's history 
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Joined: Mon Aug 30, 2010 9:56 am
Posts: 11278
Post Sea level as a metronome of Earth's history
Science Daily Geology

Sedimentary layers contain stratigraphic cycles and patterns that precisely reveal the succession of climatic and tectonic conditions that have occurred over millennia. Researchers have been working on an analytical method that combines observing deep-water sedimentary strata and measuring in them the isotopic ratio between heavy and light carbon. They have discovered that the cycles that punctuate these sedimentary successions are ascribable to sea level changes.

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Sat May 20, 2017 3:19 am
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