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Wednesday, December 17, 2014

Snettisham Peninsula

From NOAA Fisheries Service:




During the most recent last glacial maximum 200,000 years ago, Sawyer Glacier, now 30 miles distant, filled this fjord. Poorly sorted glacial till forms much of the shoreline substrate, and the larger particles on the upper beach form stable anchors for rockweed to attach. A fringing salt marsh of sedges lines the shore, and behind that a successional community of terrestrial grasses, alder bushes, and spruce trees.

Photo: Tracy Arm, Snettisham Peninsula, Southeast Alaska, August 04, 2008.

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