Bering Land Bridge: Evidence of Spruce in Late-Wisconsin Times

• Published in: Science
• Main Author: Colinvaux, Paul A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Association for the Advancement of Science (AAAS) 1967
• Subjects: Saint-Paul; Crater Lake; Bering Land Bridge; Saint-Paul Island; Alaska; Siberia
• Online Access: http://dx.doi.org/10.1126/science.156.3773.380; https://www.science.org/doi/pdf/10.1126/science.156.3773.380

A 14-meter core from a crater lake on Saint Paul Island in the Pribilofs has been examined by pollen analysis. Radiocarbon dating indicates that the core spans more than 10,000 years and probably more than 18,000 years. A spruce-pollen maximum about 10,000 years ago suggests that spruce advanced to...