Asked by Vasilis Lymberis on May 20, 2024
Verified
An accretionary prism is:
A) a wedge-shaped zone of faults, folds, and metamorphosed rocks formed along the upper parts of a subduction zone as material is scraped off
B) an active volcanic arc created by the subduction of one slab of ocean-crust-capped lithosphere beneath another
C) a sedimentary basin formed between a mountain range and the continental interior
D) a triangular-shaped sedimentary structure that allows light to pass through it and into lower areas of the crust
Wedge-Shaped Zone
A geological area characterized by its wedge or triangular shape, often indicating tectonic activity or sediment accrual at plate boundaries.
Accretionary Prism
A geological structure formed by the accumulation of sedimentary and oceanic plate material scraped off a subducting plate, typically found at convergent plate boundaries.
Metamorphosed Rocks
Rocks that have undergone a transformation in mineralogy, texture, or chemical composition due to exposure to high pressures and temperatures.
- Evaluate the contribution of subduction processes, including the formation of accretionary prisms and volcanic arcs, to regional geology.
Verified Answer
Learning Objectives
- Evaluate the contribution of subduction processes, including the formation of accretionary prisms and volcanic arcs, to regional geology.
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