Figure 5.
Modelled relationships between PC1 scores and organic geochemistry for early (a–d) and late (e–h) periods. Solid line indicates a significant relationship, P = 0.05.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.