Identifying Radiogenic Heat and Primordial Heat
- presence of different isotopes of heat-producing elements in the mantle and crust. – Radiogenic Heat
- internal heat accumulated by dissipation of the planet. – Primordial Heat
- release of accretional energy. – Primordial Heat
- processes involved in mantle convection. – Primordial Heat
- release of thermal energy as a result of spontaneous nuclear disintegration. – Radiogenic Heat
Primordial Heat refers to the Earth’s internal heat energy that was built up by the dissipations of the planet while it was in its first few years of evolution. There are two main contributors to the Earth’s primordial heat:
Acccretional Energy – or the energy formed when small bodies that orbit a star collide with each other and form rocky planets.
Differentiation Energy – or the energy that is being released by the formation of the planet’s core. It is a type of potential energy that is being dissipated by the formation of gravity of a planet.
Radiogenic Heat refers to the heat from the radioactive decay of radioactive isotopes. It is a new source of heat that is continuing.
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