What gravitational interaction is considered a potential source of lunar volcanic heat?
Answer
Tidal forces
Complex gravitational interactions between the Earth and the Moon can generate significant tidal heating. This process involves the flexing and stretching of the lunar interior, which can produce enough thermal energy to keep portions of the mantle soft and molten. Scientists are investigating tidal forces as a primary candidate for the heat source required to fuel the volcanic episodes that occurred in the relatively recent past.
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