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This I"l per pre sent s an integ rated app ro ach to ge o logic al mapping, by the use of o ld airb orn e ge ophysical data. The data processing an d interpret ation a llowe d the lise of the Brazil-Ca nada Geo physical Project for much more co mpre he nsiv e und erst andin g nfthc regi ona l and local geo logy. Th e inter pretati on of airb orn e ma g neti cs ha s pro vided both an ove rv iew of the regional struc ture as we ll ;15 further insight s into the struc tural co ntrols of the Crixris-Ccdrolina re gion. T he four rad io me tric map s (total c.: OUIl!. pomssium, uranium undthorium) were indi viduall y enhanced by man ipu lation of their histogra ms a nd then di spla yed ill pse udo-co lor. as ternary d isplays (R:G :B = K:Th:U). Individ ual lithological 1I11i ls call be traced due to thei r dist inctive rad io metric response. Gro und magnet ics profi le provided good resul ts iden tifying de taile d loc ation for the bo undary. This kind of appro ach is funda me nta l for investiga ting the reg ieual stru ctu ral framework and hel ps to bcucr define the bou ndari e s of the differe nt lithostrat igr ap hic units presen t in Precambrian te rra ne s. Keywords: gcologicnltunpping. airborne geo phys ica l dnru. Archean and Proterozoic terranes RESUMO Estc uui go mostra umn uplicuc.to de dudes ucrog coffsicos de huix n rcsolucuo par a nmpcamcuto geo logico. Estes dndo s toram intcrprcmdos ccm cnfusc 110 con texte geologico proporcionrmdo uma 111I ::lhOl'couiprccnsao du geo logia reg io nal c lo ca l. /\ inrcrprc tac ao de dado s mag nc ucos fornccc utan tc um a visao geni i da urq uitcturu regio nal, he m COtIJO lima mclh or comprccnsno dos ccmrolcs cs uut umis do limite en tre us terre nos nrqucanos c prcrcrozcicos dn rcgino de Cri xris-Cc drolina. Os quurro nmpns radicmcrric os (coru ag cmt otul, potassic. urdni o c torio) foram rculcados individuulmcntc pclu manipuluctto de SCllS histogrumas c. postcrionnc ntc. aprcscruados e m fulsn co r c un forma de iumgcns tcrnarias (R:G: B = K:T h:U). Difcrcntc s unidadcs litoldgi ca s podcm scr uucadns. uma vel, q ue PO SS ll Ctn rcspo stu mdiomc tric n di srinru. Pe rfil mag ncrico rcrrc strc pcnnitiu boa idcntifi ca cno do limi te ent re os ter ren os. Es te ripe de ubcrdagcm IS fundnmcn talna in vcsugacfio do nrcnbouco cs tnuurnl. hem co mo na de fillil;flO de conunos c Iimitc s litocstruti g ni ficos e mterrenos prc-cumbrinnos. t'atavras-chaves: mnpcumcnto geologico. dudes gcoffsiccs ndrcos, terrenos a rque a nos c pro tcrozdicos INTRODUC; AO Proj c tos gcoffs icos rcgio nnis re presen tan t urn g ra nde avanco nus pers pect ivas para 0 serer m inera l c cxcclcn rc terrame nta pa ra mnpcamcn tos gcokigicos (Ja qu es ct ,d. 1997 , S il vu 1999. B lum 1999).0 Proj cto Gcoffs ico Hrusil-Can nd.i (PGBC), rcnlizadu e m mcado s de 1970 , cobriu ccrcu de 780 mil kJll~c UUnlnIC () qual fo rum Ritn.Gllt'is.