PRE-BOREAL CLIMATIC INTERVAL

division of Holocene chronology (the Holocene Epoch began about 10,000 years ago and continues to the present). The Pre-Boreal Climatic Interval, as measured by radiocarbon dating, began about 10,000 years ago and ended about 9,500 years ago. The Pre-Boreal Climatic Interval preceded the Boreal Climatic Interval and was a time of increasing climatic moderation. Birch-pine forests were dominant.