Fountains of diamonds erupt from the ground when continents break up, say scientists — and it could help uncover new deposits

• Diamonds can gush to the surface in violent eruptions.
• These eruptions have baffled scientists as they happen more often after continents break up. 
• A new study provides an explanation, and it could help miners find more sources of diamonds.

Millions of years ago, diamonds erupted from deep underground onto Earth's surface in huge, volcanic explosions that reached speeds of more than 80 miles per hour.

These powerful eruptions, and what triggered them, have long baffled scientists.