Imwe dzidziso, yakabudiswa muna 1999 uye yakaongororwazve muna Gumiguru 2005 (pamwe nerubatsiro rweMars Global Surveyor), ndeyekuti mabhendi aya anoratidza tectonic plate chiitiko paMars makore mabhiriyoni mana apfuura, pamberi pekuti dynamo yepuraneti irege kushanda uye magineti epuraneti apera. Zvinofungidzirwa kuti, panguva yekuumbwa kweSolar System, Mars yakagadzirwa semhedzisiro yekumhanya kwemhepo yakakura kubva kune protoplanetary disk iyo yakatenderedza zuva, zvichiratidza kuti kuchinjana polarity reversals yeiyo dipole munda yakaitika munguva yakapfuura. Iyi paleomagnetism yemagineti inoenderana nemagineti inoenderana nemaminerari yakafanana nematanho anochinjika anowanikwa pasi pemakungwa epasi.
6 600 nekupetwa ka5 300