ELEMENTAL AND MINERALOGICAL ANALYSES USING GEOCHEMICAL LOGS FROM THE CAJON PASS SCIENTIFIC DRILLHOLE, CALIFORNIA, AND THEIR PRELIMINARY COMPARISON WITH CORE ANALYSES

Estimates of elemental and mineralogical abundances from geochemical logs are compared to preliminary chemical and modal analyses from cores in the Cajon Pass Scientific Drillhole. Accuracies of log-computed weight percent oxide and mineralogy determinations range from 10 to 30%.