Figure 46

Experimentally deformed feldspar aggregates

Figure caption

Experimentally deformed feldspar aggregates

Starting material / cataclastic flow / regime 1

46

HA shortened 70% at 1100°C, 10-6/sec, and 1200 MPa; regime 1 dislocation creep.

HA shortened 70% at 1100°C, 10-6/sec, 1200 MPa. This high strain sample shows that original grains are progressively reduced in size by the grain boundary recrystallization process, without showing any internal flattening strain. Remnant augen are now 'floating' in a matrix of weaker recrystallized grains. Mechanically, coarse-grained aggregates deformed in this dislocation creep regime undergo continuous strain weakening until complete recrystallization is achieved. (RD61)

		Experimentally deformed feldspar aggregates
		Figure caption

	Experimentally deformed feldspar aggregates	Starting material / cataclastic flow / regime 1


46		HA shortened 70% at 1100°C, 10-6/sec, and 1200 MPa; regime 1 dislocation creep. HA shortened 70% at 1100°C, 10-6/sec, 1200 MPa. This high strain sample shows that original grains are progressively reduced in size by the grain boundary recrystallization process, without showing any internal flattening strain. Remnant augen are now 'floating' in a matrix of weaker recrystallized grains. Mechanically, coarse-grained aggregates deformed in this dislocation creep regime undergo continuous strain weakening until complete recrystallization is achieved. (RD61)