TY - JOUR T1 - Lateral organic carbon supply to the deep Canada Basin JF - Geophysical Research Letters Y1 - 2008 A1 - Hwang, J. A1 - Eglinton, T. I. A1 - Krishfield, R. A. A1 - Manganini, S. J. A1 - Honjo, S. AB - Understanding the processes driving the carbon cycle in the Arctic Ocean is important for assessing the impacts of the predicted rapid and amplified climate change in this region. We analyzed settling particle samples intercepted by a time-series sediment trap deployed in the abyssal Canada Basin ( at 3067 m) in order to examine carbon export to the deep Arctic Ocean. Strikingly old radiocarbon ages ( apparent mean 14 C age = similar to 1900 years) of the organic carbon, abundant lithogenic material (similar to 80%), and mass flux variations temporally decoupled from the cycle of primary productivity in overlying surface waters together suggest that, unlike other ocean basins, the majority of the particulate organic carbon entering the deep Canada Basin is supplied from the surrounding margins. VL - 35 IS - 11 N1 - id: 1830; 314KU Times Cited:7 Cited References Count:33Y JO - Lateral organic carbon supply to the deep Canada Basin ER -