You are walking on the beach along the south-coast of Alaska.You see rocks cut by numerous faults that consist of basalt with evidence of eruption in the ocean,deep-water chert,mudstone,and sandstones with abundant volcanic material.What tectonic setting would you assign to these rocks?
A)passive continental margin sequence
B)forearc basin
C)continental interior basin
D)accretionary wedge

Question

Quizplus · Accepted Answer

The presence of basalt, deep-water chert, mudstone, and sandstones with volcanic material suggests an accretionary wedge, which forms at convergent plate boundaries where oceanic crust is subducted and sediments are scraped off and accumulate.

You Are Walking on the Beach Along the South-Coast of Alaska.You