Fig. 9: Chemical variability among the 90 Shijiahe sherds (by paste).
a PCA2 vs PCA3. b PCA1 vs PCA4. Drawn with a 90% confidence ellipse.
Fig. 9: Chemical variability among the 90 Shijiahe sherds (by paste). | npj Heritage Science
a PCA2 vs PCA3. b PCA1 vs PCA4. Drawn with a 90% confidence ellipse.
