Table E1 (JAS - Wendt and Peters 2023)

Source-related Biomarker Ratios, Table E.1 in "Ancient Olmec tar trade revealed by combined biomarker and chemometric analysis" by Carl J. Wendt and Kenneth E. Peters From Supplementary Materials: Appendix E. Table E1. Source-related biomarker ratios and locations for ninety-seven produced oil, seep, modern use items (oil/seep) and Olmec artifacts (asterisks) arranged by genetic family based on hierarchical cluster analysis. Four samples omitted from the analysis (designated as Family 0) violated sample residual and/or Mahalanobis distance outlier diagnostics. Asterisks identify archaeological artifacts. Plus signs ‘+’ in the description column identifies samples published previously in Wendt and Lu (2006).