seasonality, oxygen isotope analysis (Other Keyword)

DOCUMENT Citation Only Michael Glassow.

Data derived from oxygen isotope profiles of mussel shells suggest that sites in the interior of Santa Cruz Island dating between 4700 and 3400 cal BC, the period of the island’s "red abalone middens," were occupied during the spring through early winter, with little or no occupation during the main winter months. In contrast, a small number of oxygen isotope profiles indicates that a large costal site was occupied predominantly during the winter and possibly also the fall, with no occupation...