A new middle Holocene varve diagram from the river Ångermanalven, northern Sweden: indications for a possible error in the Holocene varve chronology     

BARBARA WOHLFARTH  SVANTE BJÖRCK  INGEMAR CATO  GÖRAN POSSNERT 《Boreas: An International Journal of Quaternary Research》1997,26(4):347-353

A new varve diagram from the river Ångermanälven could be correlated to the postglacial varve chronology to between 4903 and 4415 varve years BP. An AMS ¹⁴C measurement on terrestrial macrofossils obtained between 4715 and 4706 varve years BP gave a calibrated age of between 5730 and 5040 calendar years BP. The discrepancy between varve and calender-year age indicates that an error or part of an error in the Swedish varve chronology may be situated between 2000 and 5000 varve years BP.  相似文献