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Distinctions between relative-age and abolute-age measurementsThe global tectonic rock cycleDetermination of sequenceCorrelationPrinciples and techniquesGeologic column and its associated time scaleAbsolute datingPrinciples of isotopic datingEvaluation and presentation schemes in datingOrigin of radioactive elements usedThe isochron methodAnalysis of separated mineralsModel agesMultiple ages for a single rock; the thermal effectInstruments and procedures