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What type of igneous rocks are from mt Pinatubo?
Pinatubo is surrounded largely by ignimbrite, formed from enormous pyroclastic flows.
What is an example of an extrusive igneous rock?
Basalt and rhyolite are examples of extrusive igneous rocks. Also, pumice, scoria, obsidian, tuff, ignimbrite,....
What rock is a volcano made from?
There are dozens of subtly different varieties of volcanic rock. The most basic types of rock by composition are basalt, andesite, and rhyolite. By texture and how they are placed, rock types may include cooled lava, pumice, scoria, and tuff.
What is Pieces of rock and debris that are carried within lava and propelled through the air during an eruption are called?
Volcanic airborne debris is classified as either solid (tephra, aka pyroclasts, including "volcanic bombs") or particulate (ash). Lava chunks ejected into the air around a vent is called "spatter."*When solids condense from gaseous pyroclastic flows, the rock material is called ignimbrite.
Why are caldera volcanoes eruptions so dangerous?
If the magma is rich in silica, the caldera is often filled in with ignimbrite, tuff, rhyolite, and other igneous rocks. Silica-rich magma does not flow like basalt due to having a high viscosity. As a result, gases tend to become trapped at high pressure within the magma. When the magma approaches the surface of the Earth, the gases decompress rapidly, causing explosive destruction of the magma and spreading volcanic ash over wide areas. Further lava flows may be erupted.
What are the types of extrusive volcanic deposit?
Ignimbrite, Andesite, Basalt, Rhyolite
What is another name for an extrusive igneous rock?
Basalt is one example. or perhaps a lava flow or an ignimbrite.
What type of igneous rocks are from mt Pinatubo?
Pinatubo is surrounded largely by ignimbrite, formed from enormous pyroclastic flows.
Which type of rock would you expect to form as a result of an explosive eruption?
igneous rock answ2. Volcanic bombs, volcanic ash, pumice, ignimbrite.
What kind of type of lava does a Pelean eruption have?
A pyroclastic eruption, involving a viscous magma, typically of rhyolitic or andesitic type. An ignimbrite is the deposit of a pyroclastic density current, or pyroclastic flow.
Which rock type is associated with a high energy environment?
A milonite (along a fault pane)An ignimbrite (from a volcanic explosion)Shocked Quartz (from an astrobleme)There are more, but the above are some extremely high energy rock types.
What is an example of an extrusive igneous rock?
Basalt and rhyolite are examples of extrusive igneous rocks. Also, pumice, scoria, obsidian, tuff, ignimbrite,....
What is the Latin word for igneous?
Igneous is derived from the Latin word for fire: ignis.Related words are ignite and ignimbrite (a red-hot, airborne ash that solidies into a vesicular rock).
What is pyrodclastic material?
Presuming you mean pyroclastic, then the pyro part refers to hot, and the clast bit refers to a stone or part of it. Ejecta from a volcano would be the most common example. But a flood of basalt, or an ejection of white-hot gas and ash would also be. (ignimbrite).
What fate the Roman town of Pompeii suffer how did that event help to preserve many buildings and works of art there?
It was buried by an Ignimbrite lava flow (hot ash that came as a cloud). This covered the whole town to a depth greater than the height of the houses and thus preserved them intact.
What rock is a volcano made from?
There are dozens of subtly different varieties of volcanic rock. The most basic types of rock by composition are basalt, andesite, and rhyolite. By texture and how they are placed, rock types may include cooled lava, pumice, scoria, and tuff.
How did the Neanderthals die off?
There is no certain answer yet, but theories suggest that since Neanderthals and humans lived together once before (and were two separate species), competition with humans killed them off. The second theory suggests that Neanderthals and humans interbred and so they disappeared through absorption. The third theory has geological evidence. The Campanian ignimbrite volcanic super-eruption (and a second one thousands of years later) probably caused a relatively moderate decline of Neanderthal population.
