Karteikarten
Ocean Trenches
Karten in diesem Stapel (11)
- 1What is an ocean trench?A narrow depression in the earths crust
- 2Where do ocean trenches form at?Destructive plate boundaries
- 3Because the oceanic trench is dense, what does this mean?It means that the oceanic plate sinks
- 4When the plate sinks, what do we get?A subduction zone, which then causes the plate to melt
- 5How are they formed?One wall is formed by the continental plate and the other wall is formed by the oceanic plate
- 6What is one example of an Ocean trench?The Mariana's Trench - 36,000 feet below sea level
- 7Because the continental plate is less dense than the oceanic plate, what does this mean?The continental plate floats on top of the mantle
- 8What occurs at the continental plate?When molten rock is pushed to the surface, we find volanic arcs.
- 9What makes up the trench?The subduction zone
- 10How is one wall formed?By the subducted Oceanic plate
- 11How is the other wall formed?By the overriding continental plate
Informationen
- Beschreibung
- Karteikarten am Ocean Trenches, erstellt von alicerichardson1 am 01/12/2014.
- Erstellt von
- alicerichardson1
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