Question

Martian volcanoes appear to be shield volcanoes similar to Hawaiian volcanoes, except that the Martian volcanoes are much larger. What idea has been proposed

to explain the much greater size of Martian shield volcanoes compared to hot spot volcanoes on Earth?

Answer 1

The greater size of Martian shield volcanoes compared to hot spot volcanoes on Earth has been proposed to be due to the difference in the physical properties of the planets' lithospheres. The lithosphere of Mars is thought to be much thicker and stronger than the lithosphere of Earth, which would allow Martian volcanoes to build up much higher before collapsing under their own weight. Additionally, the lower gravity on Mars would allow the magma to reach the surface more easily, contributing to the larger size of Martian shield volcanoes.

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