21. The metamorphic grade or degree of metamorphism increases towards the south or southeast. 22. Buchan metamorphism occurs often in extensional settings, for example at rift basins. 23. Roof pendants typically have been strongly metamorphosed through the processes of contact metamorphism . 24. Special subduction related metamorphism to blueschist facies is known from the B�rka nappe. 25. This gradient can cause metamorphism in rocks, as seen in South Australia. 26. Although unlike in Devon and Cornwall, there was little or no metamorphism . 27. The mineral forms as a product of metamorphism in manganese-bearing minerals. 28. The defomration associated with the orogeny can be seen in amphibolite facies metamorphism . 29. Chekerdjian explores the idea of function-based metamorphism . 30. However, those associated with metamorphism are more complicated.
