CAORA 689, Orange Co., California. Davis, O.K., 1990.
Tilia II ASCII file caora689.txt

Davis, O.K. 1990.
Pollen analysis of archeological sites. pp. J1 - J37 IN de Barros, P. and Koerper, H.C. (editors) "Final test investigation report and request for determination of eligibility for 23 sites along the San Joaquin Hills transportation Corridor." Report by the Chambers Group, Inc., to Transportation Corridor Agencies, Costa Mesa, California.

Small rockshelter, evidence for historic occupation.

The preservation is good at this site, which may be thoroughly mixed from top to bottom based on the presence of historic indicators (Erodium cf. cicutarium, Sporormiella, and Thecaphora) throughout the sediment column. However, oak (Quercus) increases and Liguliflorae (dandelion group of sunflower family) decreases in the surface sample, so some stratigraphic integrity is indicated. The entire 30 cm may have been deposited in historic time.

Fecal pellets are present throughout the column, which is consistent with thorough mixing. Prickly pear Opuntia pollen is present in the surface sample and at 20 cm (20-30 cm), but the plant is not mentioned in cite report.