Dating site delhi
Thirty-six surface samples were also collected for spatial analysis of heavy metals and grain size. Glass shard analysis of cored sediments was used to establish key tephra time markers. Radiocarbon dating and pollen analyses were also used to date cored sediments and calculate sedimentation rates. During the early to late Holocene the rate of sedimentation was around 0. Maori settlement in the estuary catchment was associated with forest clearance as indicated by increased sedimentation rates 2.