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Is the pacific plate continental or oceanic?
The Pacific Plate is an oceanic plate, as it mainly comprises oceanic crust. It is one of the largest tectonic plates on Earth and is bordered by other major plates, including the North American Plate and the Eurasian Plate.
How does a volcanic erruption occurs?
Its when either on a destructive plate boundary where the oceanic plate and Continental plate move towards each other, the heavier oceanic plate sinks beneath the Continental plate then the oceanic plate melts in Subduing boundary. Or on a constructive plate boundary when the plates (North American plate and Eurasian plates) are pulled apart by convection currents and Liquid or magma rises between them, forming small volcanoes on the ocean floor. It hardens to basalt which forms the ocean floor. :D
Description of oceanic-oceanic subduction?
Occurs when ocean crust sinks under continental crust, it sinks because it's colder and denser,at these sites, deep-ocean trenches also form along with coastal mountains. As the oceanic crust moves, these trenches often causes underwater earthquake, as the crust sinks under a continent, the crust buckles to form a range of mountains, like island arcs, parallel to a deep-ocean trench. Some of the mountains are volcanoes, which form as melted oceaninc crust rises through the top plate. For example: Cascade Mountains in Oregon and Washington.
With what type of plate boundary are the following places or features associated himalayas aleutian islands red sea andes mountains san andreas fault iceland japan mount st helen's?
(1) Himalayas -- Convergent between continental-continental collision of Indo-Australian and Eurasian plates. (2) Aleutian islands -- Convergent between oceanic-oceanic collision of Pacific plate beneath North American plate. (3) Andes Mountains -- Convergent between oceanic-continental collision of Pacific plate beneath South American plate. (4) San Andreas Fault (Zone) -- Transform boundary (sometimes called a conservative boundary) between Pacific and North American plates. (5) Iceland -- Divergent boundary along the Mid-Atlantic Ridge arm of the Mid-Ocean Ridge, separating North America to the west and Eurasia to the east. *Also* a large hot spot, which is what brought Iceland to the surface, rather than remaining undersea. (6) Japan -- Convergent boundary between Pacific plate beneath North American plate (yes, Japan is on the North American plate). (7) Mount St. Helens -- Convergent boundary between Juan de Fuca beneath North Americna plate. Convergent boundaries build mountains (technically divergent do too, but no one ever thinks about them -- but they're lots and lots of small volcanoes) Continental-continental --> crust slams together like two buses, neither plate can subduct, rock squirts up and out, you get the Himalayas (Indo-Australian and Eurasia) Oceanic-oceanic --> crust meets and the older, denser, cooler one subducts. It reaches a depth that it melts, the new magma rises to the surface, pops out as a volcanic lava flow. Thousands of flows later, you have dry volcanic islands poking out of the surface. Because this is happening along a plane, you get a whole chain - an volcanic island arc like the Aleutians (Pacific plate below North American plate) Oceanic-continental --> crust meets and the oceanic will *always* subduct. Just like oceanic-oceanic, it melts and rises and pops out, but this time on a dry continental surface. Again, thousands of flows later, you have a volcano. Again, as it's on a plane, you get a whole mountain range.
What small plate is responsible for the Cascade volcanic chain?
The Juan de Fuca Plate is responsible for the Cascade volcanic chain. This small tectonic plate is subducting beneath the North American Plate, causing volcanic activity along the Cascade Range in the Pacific Northwest.
Is the pacific plate continental or oceanic?
The Pacific Plate is an oceanic plate, as it mainly comprises oceanic crust. It is one of the largest tectonic plates on Earth and is bordered by other major plates, including the North American Plate and the Eurasian Plate.
What is the name of tectonic plate off the coast of Washington and Oregon?
This is known as the Juan de Fuca Plate. Please see the related links.
How does a volcanic erruption occurs?
Its when either on a destructive plate boundary where the oceanic plate and Continental plate move towards each other, the heavier oceanic plate sinks beneath the Continental plate then the oceanic plate melts in Subduing boundary. Or on a constructive plate boundary when the plates (North American plate and Eurasian plates) are pulled apart by convection currents and Liquid or magma rises between them, forming small volcanoes on the ocean floor. It hardens to basalt which forms the ocean floor. :D
At which type of plate boundary would a string of small volcanic islands most likely form?
Convergent Boundary meaning COLLISION! Oceanic-Oceanic which formed volcanic islands!
Description of oceanic-oceanic subduction?
Occurs when ocean crust sinks under continental crust, it sinks because it's colder and denser,at these sites, deep-ocean trenches also form along with coastal mountains. As the oceanic crust moves, these trenches often causes underwater earthquake, as the crust sinks under a continent, the crust buckles to form a range of mountains, like island arcs, parallel to a deep-ocean trench. Some of the mountains are volcanoes, which form as melted oceaninc crust rises through the top plate. For example: Cascade Mountains in Oregon and Washington.
With what type of plate boundary are the following places or features associated himalayas aleutian islands red sea andes mountains san andreas fault iceland japan mount st helen's?
(1) Himalayas -- Convergent between continental-continental collision of Indo-Australian and Eurasian plates. (2) Aleutian islands -- Convergent between oceanic-oceanic collision of Pacific plate beneath North American plate. (3) Andes Mountains -- Convergent between oceanic-continental collision of Pacific plate beneath South American plate. (4) San Andreas Fault (Zone) -- Transform boundary (sometimes called a conservative boundary) between Pacific and North American plates. (5) Iceland -- Divergent boundary along the Mid-Atlantic Ridge arm of the Mid-Ocean Ridge, separating North America to the west and Eurasia to the east. *Also* a large hot spot, which is what brought Iceland to the surface, rather than remaining undersea. (6) Japan -- Convergent boundary between Pacific plate beneath North American plate (yes, Japan is on the North American plate). (7) Mount St. Helens -- Convergent boundary between Juan de Fuca beneath North Americna plate. Convergent boundaries build mountains (technically divergent do too, but no one ever thinks about them -- but they're lots and lots of small volcanoes) Continental-continental --> crust slams together like two buses, neither plate can subduct, rock squirts up and out, you get the Himalayas (Indo-Australian and Eurasia) Oceanic-oceanic --> crust meets and the older, denser, cooler one subducts. It reaches a depth that it melts, the new magma rises to the surface, pops out as a volcanic lava flow. Thousands of flows later, you have dry volcanic islands poking out of the surface. Because this is happening along a plane, you get a whole chain - an volcanic island arc like the Aleutians (Pacific plate below North American plate) Oceanic-continental --> crust meets and the oceanic will *always* subduct. Just like oceanic-oceanic, it melts and rises and pops out, but this time on a dry continental surface. Again, thousands of flows later, you have a volcano. Again, as it's on a plane, you get a whole mountain range.
What small plate is responsible for the Cascade volcanic chain?
The Juan de Fuca Plate is responsible for the Cascade volcanic chain. This small tectonic plate is subducting beneath the North American Plate, causing volcanic activity along the Cascade Range in the Pacific Northwest.
How many plates is earth's crust made of?
Earth's crust is divided into a series of large and small plates, known as tectonic plates. There are about 7 major plates (e.g., the Pacific Plate, North American Plate) and several minor plates that make up the Earth's crust.
How are mountains formed when a plated with an oceanic crust meets one with a cnotinental crust?
The oceanic plate is more dense than the continental plate, and will subduct, or move underneath, the lighter continental plate. The result is that the continental plate is uplifted. As the oceanic crust goes deeper and deeper, the temperatures become higher, causing the subducting crust to eventually melt into the mantel. The heat and gas pressure from the melting of the subducting crust may eventually seek release in the form of a volcano. The rate of crustal movement is slow, measured in a small number of inches per year, but the volcanism and crustal uplifting and folding eventually create mountains.
Which tectonic plate matches almost perfectly with the ring of fire?
oy yeah i totally know
Where are the fourteen crustal plates?
The 7 large main plates are: African Plate Antarctic Plate Eurasian Plate Indo-Australian Plate North American Plate Pacific Plate South American Plate The 7 small main plates are: Arabian Plate Caribbean Plate Cocos Plate Juan de Fuca Plate Nazca Plate Philippine Sea Plate Scotia Plate Sources: Geology 12 Graduate
How many plates interact near Washington?
I don, t no
