A Forest Buried
by Alluvial Deposits.
A remarkable instance of the rapid formation of alluvial deposits from overloaded streams has

 been discovered by the government geological expedition on the Yahtse River, in Alaska. This river in its course from the Chaix Hills to the sea passes through a tunnel in the Malaspina glacier, some 6 or 8 miles in length. When it finally emerges into the open air it is a very swiftly flowing stream of dark muddy water, 100 feet wide and about 20 feet in depth. Near the point where the river emerges from the ice it flows through a forest of large trees, and the gravel and sand carried along by the stream are deposited here to the depth of many feet. Some of the tallest trees still project through the deposit and retain their branches. The greater part, however, have been broken off and completely covered up by the sand. In other places the presence of vast forests is indicated by a few dead branches projecting through the deposits. In places where the deposits are thickest all signs of the trees have disappeared and in their place nothing may be seen but broad sand flats. These are inundated in stormy weather, and are of about the consistency of quicksand.

source:A Forest Buried by Alluvial Deposits, Manufacturer and builder / Volume 26, Issue 11, New York: Western and Company,
November 1894, p 255.

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