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faust18 [17]
3 years ago
6

A(n) ________ is a thick accumulation of sediments and small tectonic blocks formed of material scraped off subducting oceanic l

ithosphere at a convergent margin.
A) mass movement complex.
B) continental shelf, terrain complex.
C) accretionary-wedge complex.
D) subterranean-accumulation complex.
Physics
1 answer:
diamong [38]3 years ago
3 0

C) accretionary-wedge complex.

Explanation:

The accretionary wedge complex is a thick accumulation of sediments and small tectonic blocks formed from materials scraped off subducting oceanic lithosphere at a convergent margin.

Space between the subducting plate and the less dense plate gets filled by sediments scraped off the subducting plate and this forms a wedge like sediment called the accretionary wedge.

  • The accretionary wedge is invariably made up of materials found on the ocean floor.
  • Under extreme conditions, some parts of wedge transforms into metamorphic rocks.
  • The wedge is made up of: pelagic sediments, ocean floor basalts e.t.c

Learn more:

Sedimentary rocks brainly.com/question/9131992

#learnwithBrainly

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