Feeling the heat: Perseverance looks for evidence of contact metamorphism

Following a short break for the July 4th holiday, Perseverance drove westward to a site called “Westport,” where the clay-bearing “Krokodillen” unit meets an olivine-bearing rock formation. It is possible that the olivine-rich rocks are an intrusive igneous unit, meaning they could have formed when molten magma from deep within Mars got pushed upwards and cooled under the surface. If that’s the case, Westport could preserve a dramatic moment in Mars’ history when hot, molten material intruded into existing rock formations.