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Can welded and cemented tuff result from same volcano?
Yes, welded tuff and cemented tuff can result from the same volcano. Welded tuff forms when volcanic ash and debris are ejected at high temperatures and fuse together upon landing, forming a welded rock. Cemented tuff forms when loose volcanic ash and debris accumulate and are later compacted and cemented together. Both processes can occur in the same volcanic eruption, resulting in different types of tuff.
How does a welded tuff differ from a cemented tuff?
Welded tuff is forms when the ash deposited is so hot that it is still partially molten. The still liquid component then cools, fusing the deposit into a single solid mass. Cemented tuff becomes bound together from processes similar to those that form ordinary sedimentary rocks. Grains are bound together under pressure as minerals dissolved in water crystallize.
How can volcanic eruptions build mountains?
The mountain built up by a volcano is essentially a pile of material that has erupted from it such as lava, ash, and welded tuff.
What is fragmental texture?
Fragmental texture is a type of rock texture characterized by the presence of fragmented or broken rock particles that are welded together. These particles can vary in size and shape, often created by volcanic or explosive processes. Common examples include tuff and breccia.
What is the grain size of dacite?
Small to medium grain size.
What minerals are in welded tuff?
Welded tuff typically contains minerals such as quartz, feldspar, biotite, and hornblende. The exact mineral composition can vary depending on the specific geologic setting where the welded tuff formed.
Can welded and cemented tuff result from same volcano?
Yes, welded tuff and cemented tuff can result from the same volcano. Welded tuff forms when volcanic ash and debris are ejected at high temperatures and fuse together upon landing, forming a welded rock. Cemented tuff forms when loose volcanic ash and debris accumulate and are later compacted and cemented together. Both processes can occur in the same volcanic eruption, resulting in different types of tuff.
What are fiamme?
Squashed pumice blobs in a welded tuff .
What are some extrusive of igneous rocks?
== == Rhyolite, basalt, pumice, obsidian, andesite, dacite, tuff, welded tuff, scoria.
How does a welded tuff differ from a cemented tuff?
Welded tuff is forms when the ash deposited is so hot that it is still partially molten. The still liquid component then cools, fusing the deposit into a single solid mass. Cemented tuff becomes bound together from processes similar to those that form ordinary sedimentary rocks. Grains are bound together under pressure as minerals dissolved in water crystallize.
What are some names of extrusive igneous rocks?
== == Rhyolite, basalt, pumice, obsidian, andesite, dacite, tuff, welded tuff, scoria.
How can volcanic eruptions build mountains?
The mountain built up by a volcano is essentially a pile of material that has erupted from it such as lava, ash, and welded tuff.
What is fragmental texture?
Fragmental texture is a type of rock texture characterized by the presence of fragmented or broken rock particles that are welded together. These particles can vary in size and shape, often created by volcanic or explosive processes. Common examples include tuff and breccia.
What is obsidian's grain size?
there is no visible grain size
What is the grain size of dacite?
Small to medium grain size.
What term has the definition of grain size?
Particle size is another name for the term grain size.
What is slate's grain size?
Slaet in grain size is the size of sand crystals.
