Figure 2.14. Maine Metamorphic Zones. Generalized map of regional metamorphic zones in Maine, USA (Guidotti, 1985). ▇ high rank amphibolite facies, ▇ medium rank amphibolite facies, ▇ low rank amphibolite facies, ▇ epidote amphibolite facies, ▇ greenschist facies, ▇ weakly metamorphosed, ▇ plutonic rock (dated), ▇ plutonic rock. Notice that the metamorphic zones in SE Maine wrap around plutons, increasing in grade toward the plutons. Use your mousewheel and mouse to zoom and pan to see details.
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