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Early and Middle Holocene Hunter-Gatherer Occupations in Western Amazonia: The Hidden Shell Middens

Figure 7

Stratigraphy, sampling sites and geochemical analyses of the profile at SM1.

Residuals are mostly silt with small (<5%) amounts of clay and sand. Coprostanol is expressed as percentage of total detected steroids (see also Fig. 8).

Figure 7

doi: https://doi.org/10.1371/journal.pone.0072746.g007