0
What do you call mudflows produced by the melting of snow and glaciers on composite volcanoes?
The volcanic mudflows that occur at stratovolcanoes are known as Lahars. These flows can travel up to sixty miles per hour and have a consistency of wet cement. These flows destroy everything in their path and can travel up to a hundred miles down the valleys from a voclano. These mudflows can occur for many reasons, and it is not required for a volcano to erupt to produce one of these flows. Flank collapse from hydrothermally altered rock in a large stratovolcano can generate these flows without any warning and without an eruption.
What else can I help you with?
Is paricutin composite?
Yes, Paricutin is a composite volcano. It is located in Mexico and formed as a result of both explosive and effusive eruptions, which produced layers of both ash and lava, characteristic of composite volcanoes.
The greatest volume of volcanic material is produced by what?
The greatest volume of volcanic material is produced by stratovolcanoes, also known as composite volcanoes. These volcanoes are characterized by explosive eruptions that can release large amounts of magma, ash, and gases into the atmosphere. Examples of stratovolcanoes include Mount St. Helens in the United States and Mount Fuji in Japan.
What are the three types of volcanos?
A shield volcano, cinder cone volcano, and the composite volcano. Shield volcanoes are on of the three types of volcanoes. Shield volcanoes have quiet eruptions and the lava is basaltic. Its slope is shallow compared to a composite volcano and a cinder-cone volcano. They are produced by hotspots and mid-ocean ridge. Cinder-cone volcanoes are the second of the three types of volcanoes. Cinder-cone volcanoes. Cinder-cone volcanoes have explosive eruptions that release lava high in the air. They are created by tephra, volcanic ash. Its slope ranges between 30 degrees and 40 degrees. The lava is andesitic. Composite volcanoes are the third type of volcanoes. Their eruptions vary from loud and explosive to quiet. Composite volcanoes cab rise as high as 8000 feet and are steep. An example of composite volcanoes is Mount Fuji. Composite volcanoes spew felsic lava and they are built up by layers of harden lava, tephra, pumice, and volcanic ash.
What are subglacial volcanoes?
Subglacial volcanoes are volcanoes that form beneath glaciers or ice sheets. When magma rises to the surface and comes into contact with ice, it can lead to explosive interactions that result in the formation of subglacial volcanic features like tuyas, subglacial ridges, and hyaloclastite ridges.
What kind of volcano produce lahar?
Lahars are mainly produced by stratovolcanoes, which are tall, steep-sided volcanoes composed of layers of hardened lava, ash, and volcanic rocks. These volcanoes are prone to explosive eruptions that can melt snow and ice, triggering lahars when the volcanic material mixes with water and flows down the volcano slopes.
Does a lahar come out of an earthquake?
No. Lahars are mudflows that are produced by volcanoes.
What are the three types volcano?
A shield volcano, cinder cone volcano, and the composite volcano. Shield volcanoes are on of the three types of volcanoes. Shield volcanoes have quiet eruptions and the lava is basaltic. Its slope is shallow compared to a composite volcano and a cinder-cone volcano. They are produced by hotspots and mid-ocean ridge. Cinder-cone volcanoes are the second of the three types of volcanoes. Cinder-cone volcanoes. Cinder-cone volcanoes have explosive eruptions that release lava high in the air. They are created by tephra, volcanic ash. Its slope ranges between 30 degrees and 40 degrees. The lava is andesitic. Composite volcanoes are the third type of volcanoes. Their eruptions vary from loud and explosive to quiet. Composite volcanoes cab rise as high as 8000 feet and are steep. An example of composite volcanoes is Mount Fuji. Composite volcanoes spew felsic lava and they are built up by layers of harden lava, tephra, pumice, and volcanic ash.
Is paricutin composite?
Yes, Paricutin is a composite volcano. It is located in Mexico and formed as a result of both explosive and effusive eruptions, which produced layers of both ash and lava, characteristic of composite volcanoes.
The greatest volume of volcanic material is produced by what?
The greatest volume of volcanic material is produced by stratovolcanoes, also known as composite volcanoes. These volcanoes are characterized by explosive eruptions that can release large amounts of magma, ash, and gases into the atmosphere. Examples of stratovolcanoes include Mount St. Helens in the United States and Mount Fuji in Japan.
What are volcanoes on land produced by?
Volcanoes are produced by mantle plumes. ( http://en.wikipedia.org/wiki/Volcano )
What are the three types of volcanos?
A shield volcano, cinder cone volcano, and the composite volcano. Shield volcanoes are on of the three types of volcanoes. Shield volcanoes have quiet eruptions and the lava is basaltic. Its slope is shallow compared to a composite volcano and a cinder-cone volcano. They are produced by hotspots and mid-ocean ridge. Cinder-cone volcanoes are the second of the three types of volcanoes. Cinder-cone volcanoes. Cinder-cone volcanoes have explosive eruptions that release lava high in the air. They are created by tephra, volcanic ash. Its slope ranges between 30 degrees and 40 degrees. The lava is andesitic. Composite volcanoes are the third type of volcanoes. Their eruptions vary from loud and explosive to quiet. Composite volcanoes cab rise as high as 8000 feet and are steep. An example of composite volcanoes is Mount Fuji. Composite volcanoes spew felsic lava and they are built up by layers of harden lava, tephra, pumice, and volcanic ash.
How are composite volcanoes and shield volcanoes different?
Composite volcanoes or Stratovolcanoes are your typical cartoon image of volcanoes, very tall, narrow craters at the top, steeper sides often snow capped peaks. Shield volcanoes tend to not be as tall and have much more shallow sloping sides. The reason for this is due to their products and location. Composite volcanoes produce lava which is much more viscous (thicker) than shield volcanoes, which tend to produce a thinner runnier lava. This is due to the Silica (SiO2) content of the lavas. Composite volcanoes tend to be produced by more Acidic lavas (with a higher Silica content) where as shield volcanoes are produced by lavas with a more Basic composition, (a lower silica content). Composite volcanoes (Mt St Helens, Vesuvius, Mt Fugi) tend to be formed near destructive plate boundries where one tectonic plate is being subducted beneath another. When the subducted plate reaches roughly 700 km depth it begins to enter the Aesthenosphere, a layer of more ductile rock deep in the mantle. The water content of the subducted plate causes the aesthenosphere to partially melt. The molten magma begins to rise in plumes towards the surface. As the magma plume rises it has a lot of contact with the surrounding rocks it passes through, and it absorbs silica from them, arriving at the surface as a viscous silica rich melt. Shield volcanoes (Mauna Loa, Kiluea, Hekla) are more common over constructive plate margins where two plates are pulling apart. When the plates pull apart it de-pressurises the mantle beneath the plates and causes it to partially melt. The Magma rises up the cracks between the two retreating plates, with little contact to the surrounding rocks, and so picks up very little silica content. This causes it to reach the surface as a runny basic lava. The runny nature of shield volcanoes means that lava flows travel a long way from the volcano crater, causing little build up on the surrounding flanks of the volcano. The viscous nature of Composite volcanoes means that the lava doesn't travel very far and builds up on the sides of the volcanoes making them much steeper. Shield volcanoes are more often active than composite volcanoes, some erupt near constantly for many decades. Composite volcanoes erupt far less often, and can be mistakenly thought of as being extint for hundreds of years between eruptions. Composite volcanoes tend to have much more explosive eruptions than shield volcanoes, which tend to be more effusive in nature. Composite volcanoes are capable of pyroclastic flows (Mt St Helens) and huge eruptions which can entirely destroy the volcano (Pinatubo, Krakatoa). Shield volcanoes tend to only erupt in lava flows, which can create enormous shallow volcanoes (Mauna Loa, Olympus Mons)
What are mudslides produced by volcanoes called?
Lahars
Where are earthquakes and volcanoes produced at?
under the earth
How were the hawaiian islands?
They were all produced by volcanoes.
What are subglacial volcanoes?
Subglacial volcanoes are volcanoes that form beneath glaciers or ice sheets. When magma rises to the surface and comes into contact with ice, it can lead to explosive interactions that result in the formation of subglacial volcanic features like tuyas, subglacial ridges, and hyaloclastite ridges.
What kind of volcano produce lahar?
Lahars are mainly produced by stratovolcanoes, which are tall, steep-sided volcanoes composed of layers of hardened lava, ash, and volcanic rocks. These volcanoes are prone to explosive eruptions that can melt snow and ice, triggering lahars when the volcanic material mixes with water and flows down the volcano slopes.
