Figure 10

Experimentally deformed quartz aggregates

Figure caption

Experimentally deformed quartz aggregates

starting materials / semi-brittle & regime 1 / regime 2 / regime 2 & 3 / annealing

10

BHQ shortened 57% at 900°C, 10-6/sec and 1200 MPa ('wet'); transition between regime 2 - 3 dislocation creep.

BHQ shortened 57% at 900°C, 10-6/sec and 1200 MPa, with ~0.2 wt % water added. This sample is ~80-90% recrystallized, with only a slight indication of flattening of original grains. This sample exhibited steady state flow (constant flow stress), and was quenched from experimental conditions. Dynamic recrystallization produced a decrease in grain size to a stready state value (6-8 mm); thus the recrystallized grain size should reflect only the stress magnitude. (CQ82)

		Experimentally deformed quartz aggregates
		Figure caption

	Experimentally deformed quartz aggregates	starting materials / semi-brittle & regime 1 / regime 2 / regime 2 & 3 / annealing


10		BHQ shortened 57% at 900°C, 10-6/sec and 1200 MPa ('wet'); transition between regime 2 - 3 dislocation creep. BHQ shortened 57% at 900°C, 10-6/sec and 1200 MPa, with ~0.2 wt % water added. This sample is ~80-90% recrystallized, with only a slight indication of flattening of original grains. This sample exhibited steady state flow (constant flow stress), and was quenched from experimental conditions. Dynamic recrystallization produced a decrease in grain size to a stready state value (6-8 mm); thus the recrystallized grain size should reflect only the stress magnitude. (CQ82)