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Q: During which period was Laurentia completely surrounded by passive margins?
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Related questions

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.


What causes submarine canyons?

passive margins


What true of passive continental margins?

they have a continetal rise (


What is true about passive continental margins?

They have a continental rise


What is the difference between a passive continental margin an an active continental margin?

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.


Which of the following is true of passive continental margins?

they have a continental rise


Where are broad sediment covered continental shelves found in active pr passive margins?

passive margin


What does a passive continental margin have which other margins lack?

A continental rise.


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 are the Continental coastlines occurring within the interior of a tectonic plate called?

passive margins


What has the author Sierd Cloetingh written?

Sierd Cloetingh has written: 'Evolution of passive continental margins and initiation of subduction zones' -- subject(s): Plate tectonics, Continental margins


Why do passive margins have no trenches?

Trenches are caused by plate movement.