Characterization and chronology of charcoal found in the volcanic ashfall that impacted a late Valdivia community in coastal Ecuador
Several samples of fossilized wood (charcoal) were collected in the Papayita archaeological site, in coastal Ecuador.This carbonized material was encountered inside a Heart Rate Grip Assembly layer of volcanic ash that sealed the site.The ash-sized tephra was produced by a sub-Plinian eruption from the Guagua Pichincha volcano contemporaneous with