Here's a breakdown of its key characteristics:
* State: Liquid
* Composition: Primarily iron (Fe) and nickel (Ni), with smaller amounts of sulfur (S), silicon (Si), and oxygen (O).
* Temperature: Estimated to be between 4,500°C (8,132°F) and 5,500°C (9,932°F).
* Pressure: Enormous pressure exists in the outer core due to the weight of the mantle and crust above it.
* Convection currents: The liquid iron and nickel are constantly in motion due to heat from the inner core, creating convection currents. These currents are the primary driver of Earth's magnetic field.
It's important to note that the outer core is not a molten pool in the traditional sense. While it's liquid, it is also extremely dense and under immense pressure.
