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Active margins, where tectonic plates converge, are characterized by subduction zones where one plate is forced beneath another, leading to the formation of oceanic trenches. These trenches are formed due to the intense geological activity associated with plate interactions, including earthquakes and volcanic activity. In contrast, passive margins, which are not associated with tectonic plate boundaries, lack the necessary geological processes to create such deep oceanic features. Thus, trenches are exclusive to active margins due to their dynamic geological environments.

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2mo ago

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Related Questions

Why do only active margins have trenchs?

Trenches are caused by subduction.


How do active margins differ from passive margins?

Passive continental margins are not areas of convergence. There is little volcanic and earthquake activity on passive margins. Active margins are areas of convergence where one plate is descending beneath another. They are associated with volcanic and earthquake activity.


Why do passive margins have no trenches?

Trenches are caused by plate movement.


What are Continental margins near the edges of converging plates?

Continental margins near converging plates are often characterized by subduction zones where one plate is forced beneath the other. This leads to the formation of deep ocean trenches and volcanic arcs. Earthquakes and mountain building can also occur along these margins as a result of the intense tectonic activity.


Where are active continental margins primarily located?

Active continental margins are primarily located along tectonic plate boundaries where oceanic plates are subducting beneath continental plates. These margins are characterized by deep ocean trenches, volcanic arcs, and frequent seismic activity. Examples include the western coast of South America along the Andes Mountains and the Pacific Northwest coast of North America.


What is usually found at an active margin but NOT at a passive margin?

Active and passive margins describe the various characteristics of continental margins that are a result of plate tectonics. An active margin usually has numerous volcanoes and mountains, while a passive margin typically do not have these formations.


What is something similar between active and passive margins continents?

Both active and passive margins are found at the edges of continents. Active margins are associated with tectonic activity and are typically marked by earthquakes, volcanoes, and mountain building, while passive margins are geologically stable and characterized by broad continental shelves and sediment deposition.


What does the passive continental margin have that the active margin does not?

Subduction. A subduction trench.


Are deep ocean trenches mostly located in the middle of ocean basin?

No, most ocean trenches (Japan, Mariana, Tonga, South Sandwich, Puerto Rico) are located along the margins of the oceans.


What is the name of the large number of trenches and associated volcanic activity that lie along the margins of the Pacific Ocean?

The ring of fire


Which seafloor feature is not found on active continental margins?

continental rise


What seafloor feature is not found on active continental margins?

continental rise