The morphologyoftheCHstretchingregionappearstobevery
informative,butitsdescriptionrequiresamultivariateapproach.The
morerelevantparametersaretheonesthatarerelatedtothe
molecularstructures,hence,theonesextractedfromthespectral
decomposition. Multivariateanalyseswereperformedonthesepara-
meters andnewcriteriaindependentofthematerialconservation
statewereobtained,thatcandiscriminatebetweendifferentchemical
families, butalsobetweendifferentgeographicalprovenancesof
terpenoidresinsallowingthereconstructionofancientcommercial
routes,orprovidinginformationforhistoryofartandtechniques.In