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Major Features
Andean-Type Belt
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100
A narrow, elongated depression of the seafloor
What is deep-ocean trench?
100
Igneous rock that formed when magma was emplaced at depth, crystallized, and subsequently exposed by erosion.
What is batholith?
100
Forms on the side of a volcanic arc away from the trench
What is backarc basin?
200
A chain of volcanic islands generally located a few hundred kilometers from a trench where there is active subduction zone.
What is volcanic island arc?
200
Wedge-shaped mass of sediment that accumulates in subduction zones.
What is accretionary wedge?
200
Boundary in which two plates move together
What is convergent plate boundary?
300
Where pyroclastic material from the volcanic arc, as well as sediments eroded from the adjacent landmass, accumulate.
What is forearc regions?
300
Margin that consists of a continental shelf, continental slope, and continental rise.
What is passive continental margin?
300
When, in million of years did the breakup of pre-Pangaea happen
What is 750 million years ago?
400
Name all three of the features that relate to the age of Deep-ocean trench
What is age, temperature, availability of sediments?
400
Name the 4 major stages in the development of Andean-type mountain
What is Passive continental margin, Active continental margins , Primary magmas, Batholiths?
400
Name of pre-Pangaea supercontinent
What is Rodinia?