The convergent plate margin visits would be the Peru Chile
Trench, where you have a subductive zone of Oceanic crust (Nazca Plate) against
continental crust (South American Plate) and the formation of what is known
today as the Andes Mountain range.
Here, the two plates are involved in a compressive type of
stress where the plates move toward each other. When a collision occurs, the
oceanic crust sinks under the light continental crust because it is denser. The
molten rock rises to the earth’s surface, resulting in eruptions and the
formation of mountain ranges.
Intrusive rocks like granite and granodiorite which are
resistant to corrosion are normally deposited and form the core of the
mountains (Andeansummits.com).
In the Andes Mountain regions we can see where folding is
taking place and dominating the structural style. This is where the pressure of
the converging plates cause the crust to fold, resulting in the creation of the
mountain ranges.
Faults occurring along this region are normal faults.
Reference:
Andean Summits (nd). Geological history of the Andes.
Retrieved from https://www.andeansummits.com/geological-history-andes#:~:text=Intrusive%20rocks%20such%20as%20granite,over%20the%20surrounding%20sedimentary%20rocks.
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