What geologic feature is located below an active volcano?
A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption magma present in the magma chamber underneath the volcano is expelled often forcefully. When the magma chamber empties the support that the magma had provided inside the chamber disappears.
Which of the following geological features forms at a subduction?
Deep trenches are features often formed where tectonic plates are being subducted and earthquakes are common. As the sinking plate moves deeper into the mantle fluids are released from the rock causing the overlying mantle to partially melt.
What lies underneath volcanic features at Earth’s surface?
What lies underneath volcanic features at Earth’s surface? … A sill leads to volcanoes above sedimentary layers and a dike leads to volcanoes below sedimentary layers. A dike intrudes across sedimentary layers and a sill intrudes between sedimentary layers.
How did Yellowstone caldera form?
What geographic feature is associated with an oceanic plate going under a continental plate?
Oceanic trenches are formed at subduction zones. Oceanic plates meet continental plates in the water so trenches are formed as the oceanic plate goes under the continental plate. These trenches can be very deep if the plate that is subducting (going down) is an older and colder plate.
Which of the following geological features formed in the divergent boundary?
A divergent plate boundary often forms a mountain chain known as a ridge. This feature forms as magma escapes into the space between the spreading tectonic plates.
Which of the following features is not associated with subduction?
| Term | Definition |
|---|---|
| Which of the following features is not associated with subduction? | This is the correct answer. A) basaltic volcanism and rifting B) andesitic volcanism C) crumpled and fractured continental rocks D) volcanic island arc chains |
Which volcanic landform listed below is primarily composed of loose fragments of scoria?
Cinder Cones (Spatter Cones)
Most are made up of fragments of scoria (vesicular rock from basaltic lava) that were expelled from the volcano as gas-rich magma erupted. Because cinder cones are made up almost exclusively of loose fragments they have very little strength.
Where are continental volcanic arcs found?
A continental volcanic arc forms along the margin of a continent where oceanic crust subducts beneath continental crust. The Cascade Volcanoes are an example. In both cases the volcanic arc is an active landform.
What geologic event led to the formation of the rocks that make up Shiprock quizlet?
What geologic event led to the formation of the rocks that make up Shiprock? The rocks in Shiprock formed when magma solidified in the neck of an old volcano.
Is Yellowstone on a tectonic plate?
Most volcanoes occur at the boundary between two tectonic plates but Yellowstone is unusual because it lies centrally on the North America plate.
What type of landform is Yellowstone?
What is the only continent without an active volcano?
What feature is formed when the oceanic lithosphere Subducts beneath an oceanic plate?
Island arcs
Island arcs (intraoceanic or primitive arcs) are produced by the subduction of oceanic lithosphere beneath another oceanic lithosphere (ocean-ocean subduction) while continental arcs (Andean arcs) form during the subduction of oceanic lithosphere beneath a continental lithosphere (ocean-continent subduction).
What happens when continental and oceanic plates converge?
When an oceanic plate goes under a continental plate it forms a?
When an ocean plate collides with another ocean plate or with a plate carrying continents one plate will bend and slide under the other. This process is called subduction. A deep ocean trench forms at this subduction boundary.
What are geologic features?
What geologic feature is formed when two continental plates collide?
Instead a collision between two continental plates crunches and folds the rock at the boundary lifting it up and leading to the formation of mountains and mountain ranges.
What are the geologic processes events that will occur because of these movement give at least 3?
- Major geological events (this is the new formation of rocks or island)
- Plate tectonic boundaries divergent …
- Plate tectonics.
- Fault lines.
- Earthquakes.
- Volcanoes eruption.
- Seafloor spreading.
- Oceanic spreading and movements.
Which of the following features is not associated with a transform plate boundary?
Answer: Answer is mid ocean rigid.
Which type of plate boundary does not cause volcanic eruption?
Volcanism occurs at convergent boundaries (subduction zones) and at divergent boundaries (mid-ocean ridges continental rifts) but not commonly at transform boundaries.
What features are associated with the Tonga islands that suggest the islands are over a subduction zone?
[5] The Tonga‐Kermadec island arc‐trench system in the southwest Pacific Ocean (Figure 1) is characterized by: (1) subduction of old oceanic lithosphere (≥80 Ma) (2) a sediment‐starved deep‐sea trench (3) highly active arc magmatism and (4) the presence of well‐developed exten- sional faults in the seaward wall of …
What are active volcanoes?
What are the active volcanoes in the Philippines and their location?
| Item No. | Name of Volcano | Province |
|---|---|---|
| 1 | Babuyan Claro | Babuyan Island Group Cagayan in Luzon |
| 2 | Banahaw | Boundaries of Laguna and Quezon in Luzon |
| 3 | Biliran (Anas) | Leyte in Visayas |
| 4 | Bud Dajo | Sulu in Mindanao |
[Why series] Earth Science Episode 2 – Volcanoes Earthquakes and Plate Boundaries