TeachingPlateTectonics Teaching key Tectonics Earth"s interior Structure Divergent Boundary
Convergent Boundary Transform Boundary Tectonic functions Map

Convergent plate borders are locations where lithospheric key are moving towards one another. The key collisions that happen in these locations can produce earthquakes, volcanic activity, and also crustal deformation.

You are watching: What happens when a oceanic and continental plate collide


Teaching plate Tectonics Earth"s inner Structure
Convergent Boundary Divergent Boundary
Transform Boundary Tectonic functions Map

Convergent Plate boundary - Oceanic and also Continental Plates


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When continental and also oceanic key collide, the thinner and more dense oceanic plate is overridden by the thicker and less thick continental plate. The oceanic plate is compelled down into the mantle in a process known as "subduction." together the oceanic plate descends, it is compelled into higher temperature environments. At a depth of about 100 mile (160 km), products in the subducting plate start to approach their melt temperatures and a process of partial melt begins.


This partial melt produces magma chambers above the subducting oceanic plate. This magma chambers room less thick than the surrounding mantle materials and also are buoyant. The buoyant magma chambers start a slow ascent through the overlying materials, melting and fracturing their way upwards. The size and depth of these magma chambers can be determined by mapping the earthquake task around them. If a magma room rises come the surface without solidifying, the magma will break with in the kind of a volcano eruption.

The Washington-Oregon shore of the United says is an instance of this form of convergent bowl boundary. Right here the Juan de Fuca oceanic key is subducting beneath the westward-moving north American continental plate. The Cascade Mountain range is a heat of volcanoes above the melt oceanic plate. The Andes Mountain selection of western south America is an additional example that a convergent boundary in between an oceanic and also continental plate. Right here the Nazca plate is subducting beneath the southern American plate.

Visit the interaction Plate boundary Map to check out satellite pictures of convergent boundaries between oceanic and continental plates. Two locations are significant to show this kind of plate border - the Cascade volcanoes along the Washington-Oregon coast of phibìc America and also the Andes mountain variety on the west margin of south America.

Effects the a convergent boundary in between an oceanic and also continental key include: a zone the earthquake activity that is shallow along the continent margin but deepens beneath the continent; sometimes an s trench immediately off shore of the continent; a heat of volcanic eruptions a couple of hundred mile inland native the shoreline; destruction of oceanic lithosphere.

Convergent Plate border - Oceanic


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When a convergent boundary occurs between two oceanic plates, among those plates will subduct beneath the other. Generally the larger plate will certainly subduct because of its greater density. The subducting bowl is heated together it is required deeper into the mantle, and also at a depth of about 100 mile (150 km) the plate begins to melt. Magma chambers are developed as a an outcome of this melting, and the magma is reduced in thickness than the surrounding rock material. It begins ascending through melting and also fracturing its way through the overlying absent material. Magma chambers the reach the surface break with to form a volcano eruption cone. In the beforehand stages of this type of boundary, the cones will be deep beneath the s surface yet later flourish to be greater than sea level. This produces an island chain. V continued advance the islands prosper larger, merge, and also an elongate landmass is created.


Japan, the Aleutian Islands, and the east Caribbean islands of Martinique, St. Lucia, and St. Vincent and also the Grenadines are examples of islands formed through this kind of plate boundary. Visit the interactive Plate boundary Map to discover satellite pictures of these three areas.

Effects that are uncovered at this kind of plate boundary include: a region of increasingly deeper earthquakes; an oceanic trench; a chain of volcanic islands; the devastation of oceanic lithosphere.

Convergent Plate boundary - Continental


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This is a daunting boundary to draw. First it is facility and second, it is poorly taken when contrasted to the other species of bowl boundaries. In this type of convergent boundary, a powerful collision occurs. The two thick continent plates collide, and also both that them have actually a thickness that is much lower than the mantle, which stays clear of subduction (there might be a small amount the subduction, or the more heavier lithosphere below the continental crust might break complimentary from the crust and subduct).

Fragments of tardy or continent margin sediments can be recorded in the collision zone between the continents, forming a extremely deformed melange of rock. The extreme compression can likewise cause considerable folding and also faulting that rocks in ~ the two colliding plates. This deformation can prolong hundreds the miles right into the key interior.

The Himalaya Mountain range is the best energetic example of this type of key boundary. Visit the interaction Plate border Map to discover satellite photos of the Himalaya selection where the Indian and also Eurasian bowl are currently in collision. The Appalachian Mountain range is an ancient example of this collision type and is also marked on the map.

Effects uncovered at a convergent boundary in between continental key include: intense folding and also faulting; a wide folded mountain range; shallow earthquake activity; shortening and also thickening that the plates within the collision zone.

Contributor: Hobart KingPublisher, lifwynnfoundation.org


TeachingPlateTectonics Teaching bowl Tectonics Earth"s internal Structure Divergent Boundary
Convergent Boundary Transform Boundary Tectonic features Map

Teaching bowl Tectonics Earth"s internal Structure
Convergent Boundary Divergent Boundary
Transform Boundary Tectonic attributes Map

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