Part 7/9:
At depths up to 2,900 kilometers, within the mantle, pieces of iron remain unchanged, but exotic minerals form under intense pressure. Here, ringwoodite can hold significant water quantities, speculating that enough water exists in the mantle to submerge Earth under a kilometer of liquid.
The Earth’s Core
Upon reaching the Earth’s core, we find staggering conditions—up to 3.7 million atmospheres and temperatures of 6,000°C. The inner core remains solid despite the heat, while hydrogen fails to achieve a metallic state. Interestingly, water might exist as supercritical fluid or potentially transform into plasma under such extreme conditions—a feature of interest for scientists investigating the planet's mysteries.