geyserite def Archives - ToursMaps.com ® http://toursmaps.com/tag/geyserite-def Tue, 28 Mar 2017 15:11:08 +0000 en-US hourly 1 https://wordpress.org/?v=6.0.9 Geyserite http://toursmaps.com/geyserite.html http://toursmaps.com/geyserite.html#respond Sat, 18 Jun 2016 00:00:00 +0000 http://toursmaps.com/?p=206900 As you tour the geyser basins of Yellowstone, you’ll notice that a white or pale gray brittle rock surrounds the geysers and hot springs and forms gravelly areas. The chemical name for this rock is hydrous silicon dioxide. Other names for it are siliceous sinter, geyserite, or sometimes simply sinter or silica. The volcanic rhyolite that underlies most of the park’s thermal areas contains a lot of silica. When hot water percolates through the rhyolite, silica dissolves and is brought to the surface. There, the water cools and precipitates the silica as geyserite. In some places this process creates vast,

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