Portland State University

Department of Geology

Coastal Studies

Coastal Dunal Landscapes of Western North America

Thermoluminescence (TL) Dating: Background,

Field Videos in Quicktime format (very large downloads!) or Windows Streaming Media (low bandwidth format is 56k, high bandwidth is 500k, still debugging sound problems)

Video 1: Wrapping Dr. Errol Stock in black plastic to avoid light contamination of sand sample Dr. Curt Peterson works the sand auger. (Quicktime, WSM56k, WSM500K)

Video 2: Dr Stock explains what takes place under the black plastic.(Quicktime, WSM56k, WSM500K)

Video 3: Dr Stock explains Uranium dating of Caliche layers on location in Baja Sur, Mexico. (Quicktime, WSM56k, WSM500K)

Carbon 14 Dating:

USGS Carbon 14 Technique
Radiocarbon WEB-info
Carbon 14 Dating Calculator