5 Questions
What are the two main sources of Earth's internal heat?
Radiogenic heat and primordial heat
What geological processes are powered by Earth's internal heat?
Mantle convection, plate tectonics, mountain building, rock metamorphism, and volcanism
What dominates Earth's total energy budget at the surface?
Incoming solar radiation
What is theorized to sustain a geodynamo which generates Earth's magnetic field?
Convective heat transfer within the planet's high-temperature metallic core
How far does the sensible heat absorbed from non-reflected insolation penetrate on the annual cycle?
Several tens of meters
Test your knowledge about Earth's internal heat budget and the sources of heat flow from the Earth's interior to the surface. Explore the geological processes driven by internal heat and the impact on Earth's thermal history.
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