Twenty years ago, deep beneath Botswana’s Kalahari desert, Thomas Gernon found himself walking in what seemed like hell. The temperature soared as the sound of explosions echoed off the walls. “It was like a baptism of fire,” he says. It was his first trip into a kimberlite diamond mine.
The place teemed with cameras and Gernon, now at the University of Southampton in the UK, had been warned of trouble should any gemstones be found – accidentally or otherwise – on his person. But he wasn’t here to find his fortune. He wanted an answer to one of Earth’s greatest mysteries.
Diamonds are precious to many, but they hold a special place in the hearts of geologists. They were forged long ago in the fiery depths of Earth’s inaccessible mantle, brought to the surface by riding on supersonic jets of magma from bizarre volcanoes called kimberlites.
We don’t know much about precisely how diamonds formed, but we do know they are like time capsules that can teach us the secrets of our planet’s distant past. And perhaps the biggest question of all is why the kimberlites that propelled them to the surface seem to have gone extinct millions of years ago. 슬롯 잭팟 룰렛
온라인카지노 안전놀이터 신규사이트 메이저사이트 메이저놀이터 바카라 바카라하는법 바카라규칙 슬롯 슬롯머신 슬롯하는법 잭팟 룰렛 온라인슬롯 안전공원