Focus on Sedimentary Environments

River system on an active stratovolcano

White River, Mount Hood, Oregon, USA

	Braided channel at low flow stage in the White River

	Sediments in the White River. Coin is 21 mm in diameter

• How would you describe the grain size distribution of the sediment seen in this image?
• How do you interpret the behaviour of the river from the sediments you can see here?

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