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Blood Falls Eruptions Driven by Pressure Variations

2/25/2026

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Story summary
  • Blood Falls periodically erupts crimson liquid from the Taylor Glacier in Antarctica.
  • Blood Falls, discovered in 1911, has a reddish color from iron oxidizing after being trapped underground by bacteria.
  • The liquid is a hypersaline brine formed about 2 million years ago, preventing freezing.
  • New findings indicate pressure variations beneath the glacier drive the eruptions.
  • The eruptions slow the glacier's movement, though warming effects remain uncertain.