siliceous sinter

The main agents responsible for the deposition of siliceous sinter are algae and other vegetation in the water.

Examples of siliceous sinter are geyserite and fiorite.

The mineral-rich waters deposit siliceous sinter domes around geyser vents.

Travertine forms from geothermal springs and is often linked to siliceous systems that form siliceous sinter.

Siliceous sinter is a deposit of opaline or amorphous silica which appears as incrustations near hot springs and geysers.

Calcareous sinter should not be confused with siliceous sinter, which the term sinter more frequently refers to.

Siliceous sinter is porous, low-density, light-colored siliceous rock deposited by waters of hot springs and geysers.

The composition and fabric of the siliceous sinter found at any locality reflect the relative balance among the processes of replacement, precipitation, and deposition.

On the lower flank this side of the predominantly andesitic volcano, is Luzon's largest solfataras and hot springs, some of which deposit siliceous sinter.

Hot springs comprising significantly softened silica may deposit it to form siliceous sinter, whereas those comprising softened calcium carbonate deposit spongy-looking calcareous rock called tufa.

The Monument Geyser Basin has no active geysers, but its 'monuments' are siliceous sinter deposits similar to the siliceous spires discovered on the floor of Yellowstone Lake.

As a result, most geysers form in places where there is volcanic rhyolite rock which dissolves in hot water and forms mineral deposits called siliceous sinter, or geyserite, along the inside of the plumbing systems which are very slender.

This avoids any potential confusion with siliceous sinter and prevents deposits formed in different environmental conditions (hot spring deposits, cold spring deposits and speleothems are all lumped together under the term sinter) from being amalgamated into one group.