Mid ka mid ah aragtida, la daabacay 1999 iyo dib-u-baaro ee October 2005 (oo ay caawimaad ka Mars Global Surveyor), waa in bands kuwan soo jeedin dhaqdhaqaaqa tectonic saxan on Mars afar bilyan oo sano ka hor, ka hor inta dynamo meeraha joojiyay inuu shaqeeyo iyo meeraha magnetic meeraha fadhiistay. Waxaa loo maleynayaa in, inta lagu guda jiro sameynta Solar System ee, Mars waxaa la abuuray oo ay sabab u tahay habka a socday of accretion dabayl weyn oo ka disk qorraxda, taas oo soo jeedisay in beddelaad polarity beddelaad ee ay field dipole ku dhacay ee la soo dhaafay. paleomagnetism Tani ee macdan magnetically u nugul waa la mid ah bands beddelaad laga helay on dhulka dhulka badda.
afar bilyan oo sano ka hor