Study photo (IMAGE)

Desert Research Institute

Study photo

Caption

Jennifer Kielhofer sampling for charcoal and biomarkers (GDGTs) at Keystone Dune in Alaska, one of the study sites as well as one of the older archaeological sites in the area (dating back ~13,000 years).

Credit

Jennifer Kielhofer

Usage Restrictions

None

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.