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Deep in the Delta

Deep in the Delta

After their helicopter landed on a remote lake in the Mackenzie River Delta, marine geochemist Daniel Montluçon (in blue),  geologist Liviu Giosan (in grey), and Allen Firth (Gwich'in observer, in black) drilled a hole through the ice and deployed a piston core to retrieve sediment. The team retrieved sediment cores from 22 deltaic lakes during 2009 Spring field work to study possible changes in sedimentation patterns that could be due to a melting of the permafrost in the high Arctic. (Photo by Tim Eglinton, Woods Hole Oceanographic Institution)


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