Ventilation changes in the western North Pacific since the last glacial period

Ventilation changes in the western North Pacific since the last glacial period

Blog Article

We reconstructed the ventilation record of deep water at 2100 m depth in the mid-latitude western North Pacific over the past 25 kyr from radiocarbon measurements of coexisting planktic and benthic milwaukee 49-22-5603 foraminiferal shells in sediment with a high sedimentation rate.The ¹⁴C data on fragile and robust planktic foraminiferal shells were concordant with each other, ensuring high quality of the reconstructed ventilation record.The radiocarbon activity changes were consistent with the atmospheric record, suggesting that no massive mixing of old carbon quest fryer from the abyssal reservoir occurred throughout the glacial to deglacial periods.