D-6 Subduction

Subduction and plate tectonics

Structure of subduction zones

Arc-trench complex

Deep structure

Subduction angle

Thermal subsidence

Subduction markers

Life cycle of subduction zones

Initiation of subduction

End of subduction

Effects

Metamorphism

Volcanic activity

Plutonism

Earthquakes and tsunamis

Orogeny

Beginnings of subduction on Earth

Thermal anomalies

Gravity anomalies

Mineralogical transformations (metamorphism)

Methods of mineral transformation

Mode of formation of two representative rocks: andesite and garnet eclogite

Consequences of subduction and associated metamorphism

Magma formation

Mechanisms of subduction

Maintenance of subduction

Initiation of subduction

Current subduction zones on Earth