Preservation potential of salt marsh foraminifera from the Fraser River delta, British Columbia

Abstract

Three biofacies were recognized in samples collected at a depth of 10cm along three transects from the marshes of the Fraser River delta, British Columbia. These biofacies, defined by comparison with those previously identified from surface marsh samples, correspond to three elevational zones: the High Marsh Zone, the Lower High Marsh Zone, and the Low Marsh Zone. Although fewer biofacies can be resolved from paleomarshes of the Fraser delta than at the surface, it is still possible to differentiate between a High Marsh fauna (>+0.94m above mean sea level) and a Low Marsh fauna (