Search Google Appliance


Events

Archaeology First Thursday Presentation (Department of Anthropology)
Thursday, January 11, 2007 - 4:00pm
Event: Archaeology First Thursday Presentation (Department of Anthropology)

Thursday, January 11, 4:00, Cramer Hall, Room 41

Julie S. Field
will present,

GIS-based investigation of the Southern Dispersal Hypothesis: Africa
to Australasia at 70,000 years BP.

The Southern Dispersal route has been proposed as a migratory route for Homo sapiens from East Africa to Australasia during oxygen isotope stage (OIS) 4 (71-59 kyr). A series of assumptions and constraints garnered from modern hunter-gatherer observations are used to build a model of coastal foragers, which is then integrated with high-resolution physiographic analyses to produce a potential dispersal route along the coastline of the Indian Ocean.
Paleoenvironmental conditions that may have supplied critical resources or served as obstacles to human colonization are identified and discussed in regards to human subsistence, the speed of migration, and demographic expansion. These factors suggest rapid dispersals along coastlines and river valleys would have occurred initially out of Africa, but slowed as populations expanded demographically into South Asia and the Sunda Shelf. This also suggests that archaeological signatures relating to the earliest modern Homo sapiens are more likely to be recovered in South Asia.

Dr. Julie S. Field is an adjunct faculty member at the University of
Hawaii at Manoa.

Event is Free and Open to the Public

For questions, contact Virginia Butler, 5-3303 or Michael Schurke,
mcschurk@pdx.edu.