Figure F9. Definition of log units based on statistical analysis, Site 1173. Four clusters were derived from two factor logs, accounting for 76% of the total variance observed in the data. Each cluster describes a group with its specific physical properties. Boundaries between first-order log units correspond to changes in log character related primarily to lithology that are visible on the gamma ray, density, and resistivity logs. Second-order units represent subtle changes in log character.

Figure F9. Definition of log units based on statistical analysis, Site 1173. Four clusters were derived from two factor logs, accounting for 76% of the total variance observed in the data. Each cluster describes a group with its specific physical properties. Boundaries between first-order log units correspond to changes in log character related primarily to lithology that are visible on the gamma ray, density, and resistivity logs. Second-order units represent subtle changes in log character.