0
What else can I help you with?
What happens to an oceanic plate as it pushes against another plate?
When an oceanic plate pushes against another plate, the denser oceanic plate is usually forced underneath the other plate in a process called subduction. This can create deep ocean trenches, volcanic arcs, and earthquakes along the boundary between the plates.
What are the characteristics of the oceanic crust?
Oceanic crust is thinner and denser than continental crust, primarily composed of basaltic rock. It is typically younger due to the process of seafloor spreading, where new crust is formed at mid-ocean ridges and pushes older crust away. Oceanic crust is also more mafic in composition compared to continental crust.
What happens when a plate gets subducted?
The colder, more dense plate is the one that subducts in a collision between two plates. In an oceanic to oceanic plate collision it is the older of the two plates that will subduct due to its higher density. In an oceanic to continental plate collision, it's the oceanic plate that will subduct because of its higher density.
What force pushes upward on the continental crust What force pushes downward?
The force pushing upward on the continental crust is isostatic rebound, caused by the buoyancy of the less dense continental crust floating on the denser mantle. The downward force is from the weight of the overlying rock and sediments, as well as tectonic forces like subduction or compression.
What is the contradiction between continental drift and see floor spreading?
The contradiction between continental drift and seafloor spreading is that continental drift theory proposes that continents move horizontally across the Earth's surface due to the movement of tectonic plates, while seafloor spreading theory suggests that new oceanic crust is formed at mid-ocean ridges and pushes older crust away from the ridge. These two theories were eventually integrated into the theory of plate tectonics.
What happens when a tropical martime air mass pushes up against a polar continental air mass?
it creates heavy storms
What happens when the nazca seafloor plate pushes into the so American continental plate?
When the Nazca seafloor plate pushes into the South American continental plate, it creates a convergent boundary. This leads to subduction, where the denser oceanic plate is forced beneath the less dense continental plate. This process can result in the formation of deep oceanic trenches, volcanic arcs, and seismic activity such as earthquakes.
What happens to an oceanic plate as it pushes against another plate?
When an oceanic plate pushes against another plate, the denser oceanic plate is usually forced underneath the other plate in a process called subduction. This can create deep ocean trenches, volcanic arcs, and earthquakes along the boundary between the plates.
How do plate tectonics make volcanos?
Plate tectonics is about thin oceanic plates knocking against larger continental plates. When both plates are pushed against each other by thermal actions of the underlying magma then the oceanic plates goes under the continental plate. As it is pushed down it melts and forms magma that rises to the surface and the magma pushes its way through the continental plate and creates volcanoes. The more the oceanic plate is pushed under the continental plate, the greater the potential for more volcanoes and more volcanic activity. Volcanoes can occur under the sea when two oceanic plates come together as well. This action can cause volcanic islands to form.
How do tectonic plate volcanoes erupt?
Plate tectonics is about thin oceanic plates knocking against larger continental plates. When both plates are pushed against each other by thermal actions of the underlying magma then the oceanic plates goes under the continental plate. As it is pushed down it melts and forms magma that rises to the surface and the magma pushes its way through the continental plate and creates volcanoes. The more the oceanic plate is pushed under the continental plate, the greater the potential for more volcanoes and more volcanic activity. Volcanoes can occur under the sea when two oceanic plates come together as well. This action can cause volcanic islands to form.
What often occurs where an oceanic plate pushes under a continental plate?
This usually is where and how mountains ranges are formed. Volcanism can also result from the subduction melting of the oceanic crust.
How do volcanos form at a plate boundary?
When tectonic plates converge together at the bottom of the ocean the oceanic plate goes under the continental plate because the oceanic plate weighs more and then the oceanic plate pushes up the continental plate which forms mountains and sometimes the tectonic plates let magma through which goes up through the continental plate and then opens a hole at the top of the mountains called a vent which is where the steam, volcanic ash, debris and lava come out of.
How do volcano's form when oceanic and continental plates collide?
Mountains form where continental and oceanic plates collide by the actions of the plates upon one another. Often one plate pushes up and over the other one, and the upper one creates a row of mountains.
What are the characteristics of the oceanic crust?
Oceanic crust is thinner and denser than continental crust, primarily composed of basaltic rock. It is typically younger due to the process of seafloor spreading, where new crust is formed at mid-ocean ridges and pushes older crust away. Oceanic crust is also more mafic in composition compared to continental crust.
What happens when a plate gets subducted?
The colder, more dense plate is the one that subducts in a collision between two plates. In an oceanic to oceanic plate collision it is the older of the two plates that will subduct due to its higher density. In an oceanic to continental plate collision, it's the oceanic plate that will subduct because of its higher density.
How does seafloor spearing and continental drift link together?
Seafloor spreading and continental drift are linked through the theory of plate tectonics. Seafloor spreading occurs at mid-oceanic ridges, where new crust is formed and pushes apart the plates on either side. This process helps drive the movement of continents, as the newly formed crust pushes older crust away from the ridges and towards the continents, contributing to the overall process of continental drift.
What pushes up continental crust?
the tectonic plates
