Archaeological dating bp
San Miguel Island lies some 40 km off the coast of California, and has been separated from the mainland for hundreds of thousands of years. In order for people to have occupied the cave 10,500 years BP, they must have used some form of watercraft to reach the island.
Dendrochronology, the relationship of dated ancient trees with live trees has no SYNONYMS OR RELATED TERMS: chronology CATEGORY: technique DEFINITION: The process by which an archaeologist determines dates for objects, deposits, buildings, etc., in an attempt to situate a given phenomenon in time.
The earliest evidence of woven technology on the Pacific Coast was found at Daisy Cave, in the form of basketry and cordage dating to between 8,500 and 10,000 years BP.
Daisy Cave can also claim the distinction of being the earliest coastal shell of San Miguel Island.
have been found in the cave, covering at least five separate human occupations.
Daisy Cave is an important site because it provides good evidence for the use of boats along the Pacific coast by 10,500 years ago.
But the dates themselves are exactly comparable to dates expressed as A.