Figure 94

Deformation and metamorphic reactions in polyphase rocks

Figure caption

Deformation and metamorphic reactions

granodiorites / anorthosites

94

Plagioclase grain from granodiorite moderately deformed at low to mid greenschist conditions, and mostly reacted to a mixture of albite and clinozoisite.

More strongly deformed granodiorite, showing a plagioclase grain which has been largely decomposed by neo-mineralization. Mixtures of very fine-grained high-relief clinozoisite and albite are beginning to form interconnected layers, leading to a foliation in the rock. In the upper part of the image, quartz is dynamically recrystallized with a grain size larger than that in the phase mixture.

		Deformation and metamorphic reactions in polyphase rocks
		Figure caption

	Deformation and metamorphic reactions	granodiorites / anorthosites


94		Plagioclase grain from granodiorite moderately deformed at low to mid greenschist conditions, and mostly reacted to a mixture of albite and clinozoisite. More strongly deformed granodiorite, showing a plagioclase grain which has been largely decomposed by neo-mineralization. Mixtures of very fine-grained high-relief clinozoisite and albite are beginning to form interconnected layers, leading to a foliation in the rock. In the upper part of the image, quartz is dynamically recrystallized with a grain size larger than that in the phase mixture.