The painstakingly slow recovery of an Oregon marsh raises new worries about how delicate these ecosystems can be. (via hakaimagazine)
, deep below the northeast Pacific, two pieces of Earth’s crust abruptly gave way, ending a centuries-long deadlock. The massive earthquake sent a wall of water rushing inland. By the time the shaking stopped and the water settled, the coastline had been transformed. In some places, the land had plummeted by more than a meter, while the flood of sediment turned coastal marshes into mudflats.
“I went into the research thinking that Netarts would probably have actually recovered from the earthquake relatively quickly, on the order of decades,” Peck says. “But we found that it actually took 200 years.” The realization that Netarts Bay took centuries to bounce back after the earthquake stemmed from Peck and her colleagues’ analysis of sediment that they pulled from the modern marshland using a massive PVC pipe jackhammered into the ground. “It’s a bit like putting a straw in a glass of water, putting your thumb over the top of the straw, and pulling it out,” Peck says.
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