Deep shelter with relatively little disturbance, extensive shell midden. Twenty m north of CA-Ora-1083.
The pollen concentration is high but the preservation is poor at this site. The increased abundance of Sporormiella and Crucifereae above 30 cm seem to place the historic horizon (200 years ago) there. These types are not present below 30 cm and Erodium cicutarium, another historic indicator is only present in the surface sample, so vertical mixing of sediment may be minimal. However, Thecaphora, a dung fungus that increases in surface sediment at most sites, is present in low percentages throughout the sediment column.
CA-Ora-1082 appears to be older than nearby 1083, but its preservation is not as good.BACK