Hidden Shell Middens Reveal Ancient Human Presence in Bolivian Amazon (2 of 2) (IMAGE)
Caption
This shows cross-section transect of the shell midden SM1. Dashed lines and grey arrow highlight the onion-like growth of the midden reflected in the 14C dates. The black triangles above mark the coring locations and the white triangle the excavation site.
Credit
Lombardo U, Szabo K, Capriles JM, May J-H, Amelung W, et al. (2013) Early and Middle Holocene Hunter-Gatherer Occupations in Western Amazonia: The Hidden Shell Middens. <i>PLoS ONE</i> 8(8): e72746. doi:10.1371/journal.pone.0072746
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