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When Slime Ruled: Evolutionary Pause Tied to Earth's Stuck Plates


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Posted
  • Location: Derbyshire Peak District South Pennines Middleton & Smerrill Tops 305m (1001ft) asl.
  • Location: Derbyshire Peak District South Pennines Middleton & Smerrill Tops 305m (1001ft) asl.

Scientists have long sought an explanation for this big hold-up. Now they've found a possible cause: the planet itself. It turns out plate tectonics also had a boring billion, according to research presented last week at the annual Goldschmidt geochemistry conference in Sacramento, California. The findings were also published in the June 2014 issue of the journal Geology.

 

The authors Peter Cawood and Chris Hawkesworth of the University of St. Andrews in Scotland looked at how the continents behaved in the past by analyzing indicators of tectonic activity such as volcanic eruptions, global glaciations and giant gold and sulfur deposits. The continents weren't the same size through, nor did they plow across the planet at the same speed. They found the continents grew quickly on the early Earth, had a stable middle age and are now entering a midlife crisis.

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  • Location: inter drumlin South Tyrone Blackwater river valley surrounded by the last last ice age...
  • Weather Preferences: jack frost
  • Location: inter drumlin South Tyrone Blackwater river valley surrounded by the last last ice age...

'when slime ruled' .. sounds like a future report of the present !

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