Metamorphic Rocks In which plate tectonic settings are the different types of metamorphism likely to form?

Metamorphic Rocks

1. In which plate tectonic settings are the different types of metamorphism likely to form? Describe the temperatures and pressures (high or low) in each of the settings. (Hint: associate the physical parameters of the different tectonic boundaries with metamorphism driving factors prevailing in each of them) 
2. Explain at least two ways in which geologists can determine the temperatures and pressures (or depths) of metamorphism?