Seismic data indicates Mars developed complex magma systems without plate tectonics

The short version

• Researchers analyzing seismic data from NASA's InSight lander identified evidence of a vast, layered magma system deep beneath the Martian crust.
• The discovery shows Mars underwent internal geological recycling, a process previously thought to require Earth-like plate tectonics.
• The findings suggest conditions favorable to habitability might develop on single-plate rocky planets across the universe.

Key facts

• A study published in Nature Astronomy used seismic data from NASA's InSight lander alongside thermodynamic and statistical modeling to analyze a distinct geological boundary 24 kilometers below the surface of Mars.[ScienceDaily]
• The analysis determined that rock below the 24-kilometer mark is iron- and magnesium-rich ultramafic material, whereas the rock above is silica-rich mafic material.[ScienceDaily]
• The composition indicates Mars experienced transcrustal magmatism, in which dense crystals settled at the lower crust while lighter melts moved upward.[ScienceDaily]
• The buried magmatic structure could potentially extend for hundreds or thousands of kilometers across the northern hemisphere of Mars.[ScienceDaily]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.

• Deep beneath Mars, scientists find a vast hidden magma systemScienceDaily - Science